Environment represents all physical, chemical, biological, behavioral and socioeconomic factors surrounding humans. Factors like domestic appliances, cosmetics, food, smoking, stress, alcohol and modern gadgets influence lifestyle. Exposure to electromagnetic fields from sources like power lines, mobile phones, WiFi etc. can potentially impact human health through thermal and non-thermal mechanisms. More research is still needed to fully understand the health effects of electromagnetic radiation exposure.
This document summarizes the current scientific understanding of the relationship between electromagnetic fields (EMF) from sources like mobile phones and mobile towers, and cancer risk. It reviews the relevant literature and major studies conducted, which have not found a definitive causal link. While long term effects are still being studied, the international radiation exposure limits are based on scientific evidence and prevent thermal effects. Ongoing research aims to further assess health impacts, but there is no current scientific basis that EMF radiation levels from compliant mobile networks pose a cancer risk.
Energize by Altering Your ConnectednessLois Borner
Dr. Becker explains that electromagnetic medicine can unlock healing secrets but electromagnetic pollution poses health risks. Alternative therapies that use the body's electrical systems are effective. Our bodies are negatively impacted by devices like power lines, computers, and wireless technologies. The BioInitiative Report finds current safety limits for electromagnetic radiation are inadequate and that non-thermal biological effects may lead to illness or death. Until research determines safe exposure levels, increasing electromagnetic exposures is unwise for public health.
This document provides an overview of building biology and electrobiology. It discusses how modern environmental factors can impact health and introduces the Institute for Building Biology & Ecology, which facilitates information sharing on building healthy living and work spaces. The document then summarizes various sources of electromagnetic radiation in the built environment, including power systems, wireless technologies, and dirty electricity from electronics. It discusses the science of epidemiology and reviews some research on the health effects of electromagnetic fields and radiation. Throughout, it emphasizes the importance of studying electrobiology to understand how current environmental exposures may differ from historical human experience and recommends prudent avoidance of technologies that can negatively impact health.
This document discusses and debunks some common myths about cell tower radiation. It presents some outlandish claims people make about health effects of cell towers, such as that cell tower radiation causes sweat glands in ears or can transmit STDs. It then provides facts from scientific organizations like WHO and ICNIRP that no health effects have been proven from cell tower radiation levels and that anti-radiation products are unproven. The document encourages verifying information from credible sources rather than social media.
EFFECT OF RADIATIONS ON HABITS OF BIRDS AND INSECTKomal Sharma
The document summarizes research on the effects of electromagnetic radiation from cell phone towers and other wireless technologies on birds and insects. It finds that radiation can disrupt birds' navigation systems and immune systems, affecting their reproduction and health. Studies show cell phone radiation interferes with bees' biological clocks and navigation, and may be a factor in Colony Collapse Disorder. Other insects like butterflies and mosquitos show immune and reproductive system impacts. The conclusion warns that with rising radiation levels, impacts could extend to other species and potentially humans in the future. More research and stricter safety regulations are needed to understand and mitigate these environmental and health risks.
This document summarizes the human and environmental impacts of common cell phones. It discusses the health effects of radiation from cell phones, including potential links to brain cancer, DNA damage, and other issues. It also examines specific absorption rates (SAR) as a measure of radiation absorbed by the body from phones. Near-field radiation from phones held close to the head is identified as particularly hazardous. The document also discusses the toxic materials in phone components and waste, and problems with unsustainable waste management. Recommendations are provided to reduce radiation exposure and promote safer waste disposal.
RESEARCH REVIEW FOR POSSIBLE RELATION BETWEEN MOBILE PHONE REDIATION AND BRAI...ijitcs
The aim of this paper is to introduce a research review for the effect of Mobile phone radiation on human
health and the possible relation between Mobile phone radiation and brain tumor. Mobile phones become
increasingly prevalent throughout our society. In the year 2016, it was estimated that there were 4 billion
cellular phone users worldwide; the number is growing by one million every month in the US. The goal of
this paper is to give a brief overview and also discuss the biological effects of the exposure to mobile
phones radiation. Many effects have been reported with the use of mobile phones on human organisms due
to the exposure to electromagnetic radiation. Concerns about the links between using the mobile phones
and biological effects, in particular, the brain tumors have been under research. As the other radio signals
transmition devices, cellular phone emits radiofrequency energy, which can heat the brain tissues and
cause damage to the brain cells. But even mobile phones operates at power level below the level at which
such heating effects occur, long term exposure to low level RF from mobile phones could cause other types
of health effects, such as brain cancer, due to energy absorption in the brain tissues. Some human
biological experiments, such as Aly et al. 2014, Aly, et al. 2008 indicates, the average time for the human
cells to respond to the effect of RF radiation was approximately 2.5 min, Hardell et al.2002, and Repacholi
et al.1997 indicated increased risk with exposure to mobile phones radiation. The British Association
festival of science was told recently that using a mobile telephone mor
This study evaluated the cytotoxic effects of cell phone radiation exposure on buccal mucosa cells. Sixty male cell phone users who used their phones for 3-9 hours per day were divided into groups based on addiction habits and call duration. Their buccal cells were analyzed and compared to a control group of 60 males with less than 1 hour of daily exposure. Various cell anomalies including micronuclei, nuclear buds, and pyknotic cells were significantly higher in frequency in the exposed groups compared to controls. Frequency of anomalies was also significantly higher in addiction groups and groups with longer call durations, suggesting greater radiation exposure results in more DNA and cellular damage. The results imply health risks including cancer may increase with prolonged cell phone
This document summarizes the current scientific understanding of the relationship between electromagnetic fields (EMF) from sources like mobile phones and mobile towers, and cancer risk. It reviews the relevant literature and major studies conducted, which have not found a definitive causal link. While long term effects are still being studied, the international radiation exposure limits are based on scientific evidence and prevent thermal effects. Ongoing research aims to further assess health impacts, but there is no current scientific basis that EMF radiation levels from compliant mobile networks pose a cancer risk.
Energize by Altering Your ConnectednessLois Borner
Dr. Becker explains that electromagnetic medicine can unlock healing secrets but electromagnetic pollution poses health risks. Alternative therapies that use the body's electrical systems are effective. Our bodies are negatively impacted by devices like power lines, computers, and wireless technologies. The BioInitiative Report finds current safety limits for electromagnetic radiation are inadequate and that non-thermal biological effects may lead to illness or death. Until research determines safe exposure levels, increasing electromagnetic exposures is unwise for public health.
This document provides an overview of building biology and electrobiology. It discusses how modern environmental factors can impact health and introduces the Institute for Building Biology & Ecology, which facilitates information sharing on building healthy living and work spaces. The document then summarizes various sources of electromagnetic radiation in the built environment, including power systems, wireless technologies, and dirty electricity from electronics. It discusses the science of epidemiology and reviews some research on the health effects of electromagnetic fields and radiation. Throughout, it emphasizes the importance of studying electrobiology to understand how current environmental exposures may differ from historical human experience and recommends prudent avoidance of technologies that can negatively impact health.
This document discusses and debunks some common myths about cell tower radiation. It presents some outlandish claims people make about health effects of cell towers, such as that cell tower radiation causes sweat glands in ears or can transmit STDs. It then provides facts from scientific organizations like WHO and ICNIRP that no health effects have been proven from cell tower radiation levels and that anti-radiation products are unproven. The document encourages verifying information from credible sources rather than social media.
EFFECT OF RADIATIONS ON HABITS OF BIRDS AND INSECTKomal Sharma
The document summarizes research on the effects of electromagnetic radiation from cell phone towers and other wireless technologies on birds and insects. It finds that radiation can disrupt birds' navigation systems and immune systems, affecting their reproduction and health. Studies show cell phone radiation interferes with bees' biological clocks and navigation, and may be a factor in Colony Collapse Disorder. Other insects like butterflies and mosquitos show immune and reproductive system impacts. The conclusion warns that with rising radiation levels, impacts could extend to other species and potentially humans in the future. More research and stricter safety regulations are needed to understand and mitigate these environmental and health risks.
This document summarizes the human and environmental impacts of common cell phones. It discusses the health effects of radiation from cell phones, including potential links to brain cancer, DNA damage, and other issues. It also examines specific absorption rates (SAR) as a measure of radiation absorbed by the body from phones. Near-field radiation from phones held close to the head is identified as particularly hazardous. The document also discusses the toxic materials in phone components and waste, and problems with unsustainable waste management. Recommendations are provided to reduce radiation exposure and promote safer waste disposal.
RESEARCH REVIEW FOR POSSIBLE RELATION BETWEEN MOBILE PHONE REDIATION AND BRAI...ijitcs
The aim of this paper is to introduce a research review for the effect of Mobile phone radiation on human
health and the possible relation between Mobile phone radiation and brain tumor. Mobile phones become
increasingly prevalent throughout our society. In the year 2016, it was estimated that there were 4 billion
cellular phone users worldwide; the number is growing by one million every month in the US. The goal of
this paper is to give a brief overview and also discuss the biological effects of the exposure to mobile
phones radiation. Many effects have been reported with the use of mobile phones on human organisms due
to the exposure to electromagnetic radiation. Concerns about the links between using the mobile phones
and biological effects, in particular, the brain tumors have been under research. As the other radio signals
transmition devices, cellular phone emits radiofrequency energy, which can heat the brain tissues and
cause damage to the brain cells. But even mobile phones operates at power level below the level at which
such heating effects occur, long term exposure to low level RF from mobile phones could cause other types
of health effects, such as brain cancer, due to energy absorption in the brain tissues. Some human
biological experiments, such as Aly et al. 2014, Aly, et al. 2008 indicates, the average time for the human
cells to respond to the effect of RF radiation was approximately 2.5 min, Hardell et al.2002, and Repacholi
et al.1997 indicated increased risk with exposure to mobile phones radiation. The British Association
festival of science was told recently that using a mobile telephone mor
This study evaluated the cytotoxic effects of cell phone radiation exposure on buccal mucosa cells. Sixty male cell phone users who used their phones for 3-9 hours per day were divided into groups based on addiction habits and call duration. Their buccal cells were analyzed and compared to a control group of 60 males with less than 1 hour of daily exposure. Various cell anomalies including micronuclei, nuclear buds, and pyknotic cells were significantly higher in frequency in the exposed groups compared to controls. Frequency of anomalies was also significantly higher in addiction groups and groups with longer call durations, suggesting greater radiation exposure results in more DNA and cellular damage. The results imply health risks including cancer may increase with prolonged cell phone
The document discusses electromagnetic fields (EMFs) from sources like mobile phones and their potential health effects. It summarizes research from the World Health Organization's International EMF Project which found that EMFs from 0-300 GHz do not cause any known health issues. However, some studies have proposed potential thermal and non-thermal effects, though more research is still needed and no direct health hazards have been proven. The document recommends precautionary measures to reduce exposure but concludes that long term mobile phone use has not been definitively linked to health risks.
1) The document discusses the biological effects of electromagnetic radiation emitted by mobile phones and cell phone towers on human health. It notes that continued use of mobile phones can increase health risks due to thermal and non-thermal effects.
2) Thermal effects occur as electromagnetic waves from mobile phones are absorbed by human tissues, causing heating. This can raise local temperatures, especially near the head and brain where phones are often used. Non-thermal effects involve low-frequency pulsing of cell phone signals disrupting normal cell functions.
3) The document recommends that people keep away from cell phone towers and limit mobile phone use to reduce exposure to electromagnetic radiation, which some studies have linked to increased health risks from long-term
This document provides summaries of various studies on the health effects of electromagnetic fields (EMF) and radiofrequency (RF) radiation from sources like mobile phones, mobile phone base stations, and wireless internet routers. It summarizes 12 studies from 2011-2012 investigating topics like the impact of EMF on melatonin levels, DNA damage, cognitive performance, stress and sleep, fertility and sperm health, and brain tumor risk in children. The studies were conducted in several countries and investigated biological effects in humans and animals as well as epidemiological associations with mobile phone use.
This document summarizes research on the effects of mobile phone radiation on human health. It discusses two main mobile phone technologies (GSM and CDMA) and their different operating frequencies and power levels. Studies show that GSM radiation has a larger effect on the brain than CDMA, as measured by electroencephalograms of volunteers. While some studies link mobile phone radiation to health issues like genetic damage and tumors, the evidence is still inconclusive. More research is still needed to understand potential long-term risks of heavy mobile phone use.
The document discusses the negative environmental and health impacts of increasing cell phone and cell tower use. It notes that unused cell phones contribute greatly to e-waste, and that cell phones and towers emit toxic heavy metals and radiation that can damage human health, wildlife populations, and the environment. Specific concerns raised include brain damage, early-onset Alzheimer's, DNA damage from radiation exposure, declining bird populations due to interference with navigation, and potential links to colony collapse disorder in bees. The document calls for reducing radiation exposure through lower tower emissions, public education on safe phone use, and relocating towers away from populated areas.
Microwave radiation guidelines and debate during the last 50 yearsMikko Ahonen
This document discusses guidelines for microwave radiation exposure over the last 50 years. It describes how early guidelines focused on preventing thermal harm from high-level radar exposure based on military research. However, some studies found non-thermal biological effects. Guidelines now focus on SAR (specific absorption rate) measures, but these have limitations as they assume uniform tissue heating and do not consider effects from chronic or simultaneous exposures. New research on non-thermal effects and more accurate modeling of exposure is needed to develop improved safety guidelines.
This document discusses radio signals and health issues related to mobile phone use. It begins with an introduction to radio signals from natural and artificial sources like mobile phones. It then addresses common health concerns around mobile phone use and cancer risk. The document outlines international regulations and guidelines from organizations like WHO and ICNIRP. It presents a case study examining mobile phone use patterns and health impacts self-reported by students. It concludes by emphasizing the importance of complying with regulations to preserve health while using telecommunication technologies.
This document provides a compilation of research reports and findings on cell tower radiation. It discusses concerns that have been raised about potential adverse health effects, but notes that independent research has not found evidence of harm. Specific studies and reports are summarized that find no conclusive link between cell tower radiation and cancer, headaches, or other issues. It also notes that radiation levels from towers are very low compared to other common sources and do not increase temperatures in tissues. While more research is still needed, current evidence does not suggest cell tower radiation poses a health risk.
Review adverse effects on environment due to cell tower radiation (microwa...Nripesh Gupta
This paper tells u about the adverse effects on enviornment and human being due to cell tower radiation and what are different ways i.e governmental and basic ways to minimize the radiation.
1) Natural electromagnetic fields (EMFs) like the Schumann resonance have been shown to affect circadian rhythms in humans and animals, with rhythms changing to 33 hours when natural EMFs were removed.
2) Man-made EMFs like power-frequency transients and radiofrequency radiation from devices have been linked to health issues ranging from headaches to cancer, though results are mixed.
3) Further research is needed to better understand how natural and man-made EMFs interact with human biology and what levels may be safe or pose health risks.
Dr. MH Repacholi summarizes research on the health risks of radiofrequency fields from various sources like mobile phones, base stations, and wireless networks. The document discusses the objectives and structure of the WHO EMF Project, research findings on biological effects and potential health risks, factors like exposure levels and modulation, reviews of national and international health organizations, issues like electromagnetic hypersensitivity, and recommendations for further research. The overall conclusion presented is that current scientific evidence has found no adverse health effects from radiofrequency exposure below international guideline limits, though more research is still needed, especially on new technologies and potential risks to children.
measuring the EMF of various widely used electronic devices and their possibl...Anax_Fotopoulos
"Measuring the EMF of various widely used electronic devices and their possible impact to our lige",P.H. Yannakopoulos, A.A. Fotopoulos, D.Katsigiannopoulos, St. Katsikakis. , International Scientific Conference eRA-5, Technological Educational Instistute of Piraeus,2010, Athens, Greece.
The document summarizes research on the potential health effects of mobile phone use. It discusses several studies that have investigated links between mobile phone use and brain tumors or cognitive effects. While some research has found increased tumor risks with long-term mobile phone use, other studies have not found a causal relationship between use and cancer. Studies on cognitive effects have also shown mixed results, with some finding declines in memory, attention and learning associated with radio frequency exposure, while others found no effects. The document outlines the methodology and conclusions of several such epidemiological and case-control studies, noting that the scientific community has yet to reach a definite consensus on the health impacts of mobile phone use.
Is Mobile Radiation harmful to your health? MALAYALAM AND ENGLISHRavi Ramakrishnan
The total mobile connections in the world is more than the global population. There are nearly 7.4 lakh cell phone towers to meet the communication demand in India. Microwave is used for communication between the tower and phone.
The same microwave is used in microwave oven also.
When these waves pass through the food articles in the oven, the water molecules will vibrate and thermal energy is released.
The document discusses the global problem of radiation from technology and its health effects. It defines electrosmog as non-ionizing radiation from wireless devices, computers, and other electronics. Both short-term and long-term exposure can impact health, increasing risks of cancers, mental illnesses, and other chronic diseases. The International Society for Electrosmog Research conducts studies on the reasons for and effects of electrosmog on people, animals, and the environment. New technologies aim to protect against radiation from various electromagnetic sources.
This document discusses the importance of electromagnetics in modern medicine and communications. It describes how electromagnetic waves are used for technologies like MRI machines, x-rays, wireless implants and more in medicine. In communications, electromagnetic waves enable radio, cell phones, wireless networks, and technologies like radar. The document also gives credit to scientists like Faraday, Maxwell, and Hertz for pioneering research in electromagnetics that built the foundation for these modern applications.
Electromagnetic fields from cell phones and other devices can potentially impact human health through both thermal and non-thermal mechanisms. Thermal effects are caused by tissue heating from radiofrequency radiation absorption, while non-thermal effects occur through interactions with molecules, cells, tissues, and organisms. Some studies have found associations between cell phone use and increased risks of brain tumors, acoustic neuromas, parkinson's disease, alzheimer's disease, and behavioral issues in children, though evidence is limited. Electromagnetic fields have also been linked to oxidative stress, effects on cell growth and proliferation, immune and nervous system function, and cardiovascular and reproductive health impacts. Further research is still needed to fully understand the effects of electromagnetic radiation exposure from modern technologies on
The document discusses potential health effects of electromagnetic fields (EMFs) from cell phones and other sources. It summarizes that EMFs can cause both thermal effects, by heating tissues, and non-thermal (athermal) effects, through interactions at the molecular level. Thermal effects are minimized in cell phones due to limits on power output. Potential health impacts of EMFs discussed include effects on biological membranes, cell growth and proliferation, and increased risk of tumors and cancer. The document provides an overview of EMF sources and exposure levels in India.
Cellular Telephone Use & the Risk of Brain Tumors.GhaYooruL
The document summarizes research on the potential health risks of cellular phone use and radiation. It discusses the history of phones and radiation types. It describes studies that found no significant association between phone use and brain tumors overall, though slightly higher risks were found for tumors in parts of the brain near phone use. The document recommends reducing phone use near the head, especially for children, and choosing phones with lower radiation absorption.
The document discusses electromagnetic fields (EMFs) from sources like mobile phones and their potential health effects. It summarizes research from the World Health Organization's International EMF Project which found that EMFs from 0-300 GHz do not cause any known health issues. However, some studies have proposed potential thermal and non-thermal effects, though more research is still needed and no direct health hazards have been proven. The document recommends precautionary measures to reduce exposure but concludes that long term mobile phone use has not been definitively linked to health risks.
1) The document discusses the biological effects of electromagnetic radiation emitted by mobile phones and cell phone towers on human health. It notes that continued use of mobile phones can increase health risks due to thermal and non-thermal effects.
2) Thermal effects occur as electromagnetic waves from mobile phones are absorbed by human tissues, causing heating. This can raise local temperatures, especially near the head and brain where phones are often used. Non-thermal effects involve low-frequency pulsing of cell phone signals disrupting normal cell functions.
3) The document recommends that people keep away from cell phone towers and limit mobile phone use to reduce exposure to electromagnetic radiation, which some studies have linked to increased health risks from long-term
This document provides summaries of various studies on the health effects of electromagnetic fields (EMF) and radiofrequency (RF) radiation from sources like mobile phones, mobile phone base stations, and wireless internet routers. It summarizes 12 studies from 2011-2012 investigating topics like the impact of EMF on melatonin levels, DNA damage, cognitive performance, stress and sleep, fertility and sperm health, and brain tumor risk in children. The studies were conducted in several countries and investigated biological effects in humans and animals as well as epidemiological associations with mobile phone use.
This document summarizes research on the effects of mobile phone radiation on human health. It discusses two main mobile phone technologies (GSM and CDMA) and their different operating frequencies and power levels. Studies show that GSM radiation has a larger effect on the brain than CDMA, as measured by electroencephalograms of volunteers. While some studies link mobile phone radiation to health issues like genetic damage and tumors, the evidence is still inconclusive. More research is still needed to understand potential long-term risks of heavy mobile phone use.
The document discusses the negative environmental and health impacts of increasing cell phone and cell tower use. It notes that unused cell phones contribute greatly to e-waste, and that cell phones and towers emit toxic heavy metals and radiation that can damage human health, wildlife populations, and the environment. Specific concerns raised include brain damage, early-onset Alzheimer's, DNA damage from radiation exposure, declining bird populations due to interference with navigation, and potential links to colony collapse disorder in bees. The document calls for reducing radiation exposure through lower tower emissions, public education on safe phone use, and relocating towers away from populated areas.
Microwave radiation guidelines and debate during the last 50 yearsMikko Ahonen
This document discusses guidelines for microwave radiation exposure over the last 50 years. It describes how early guidelines focused on preventing thermal harm from high-level radar exposure based on military research. However, some studies found non-thermal biological effects. Guidelines now focus on SAR (specific absorption rate) measures, but these have limitations as they assume uniform tissue heating and do not consider effects from chronic or simultaneous exposures. New research on non-thermal effects and more accurate modeling of exposure is needed to develop improved safety guidelines.
This document discusses radio signals and health issues related to mobile phone use. It begins with an introduction to radio signals from natural and artificial sources like mobile phones. It then addresses common health concerns around mobile phone use and cancer risk. The document outlines international regulations and guidelines from organizations like WHO and ICNIRP. It presents a case study examining mobile phone use patterns and health impacts self-reported by students. It concludes by emphasizing the importance of complying with regulations to preserve health while using telecommunication technologies.
This document provides a compilation of research reports and findings on cell tower radiation. It discusses concerns that have been raised about potential adverse health effects, but notes that independent research has not found evidence of harm. Specific studies and reports are summarized that find no conclusive link between cell tower radiation and cancer, headaches, or other issues. It also notes that radiation levels from towers are very low compared to other common sources and do not increase temperatures in tissues. While more research is still needed, current evidence does not suggest cell tower radiation poses a health risk.
Review adverse effects on environment due to cell tower radiation (microwa...Nripesh Gupta
This paper tells u about the adverse effects on enviornment and human being due to cell tower radiation and what are different ways i.e governmental and basic ways to minimize the radiation.
1) Natural electromagnetic fields (EMFs) like the Schumann resonance have been shown to affect circadian rhythms in humans and animals, with rhythms changing to 33 hours when natural EMFs were removed.
2) Man-made EMFs like power-frequency transients and radiofrequency radiation from devices have been linked to health issues ranging from headaches to cancer, though results are mixed.
3) Further research is needed to better understand how natural and man-made EMFs interact with human biology and what levels may be safe or pose health risks.
Dr. MH Repacholi summarizes research on the health risks of radiofrequency fields from various sources like mobile phones, base stations, and wireless networks. The document discusses the objectives and structure of the WHO EMF Project, research findings on biological effects and potential health risks, factors like exposure levels and modulation, reviews of national and international health organizations, issues like electromagnetic hypersensitivity, and recommendations for further research. The overall conclusion presented is that current scientific evidence has found no adverse health effects from radiofrequency exposure below international guideline limits, though more research is still needed, especially on new technologies and potential risks to children.
measuring the EMF of various widely used electronic devices and their possibl...Anax_Fotopoulos
"Measuring the EMF of various widely used electronic devices and their possible impact to our lige",P.H. Yannakopoulos, A.A. Fotopoulos, D.Katsigiannopoulos, St. Katsikakis. , International Scientific Conference eRA-5, Technological Educational Instistute of Piraeus,2010, Athens, Greece.
The document summarizes research on the potential health effects of mobile phone use. It discusses several studies that have investigated links between mobile phone use and brain tumors or cognitive effects. While some research has found increased tumor risks with long-term mobile phone use, other studies have not found a causal relationship between use and cancer. Studies on cognitive effects have also shown mixed results, with some finding declines in memory, attention and learning associated with radio frequency exposure, while others found no effects. The document outlines the methodology and conclusions of several such epidemiological and case-control studies, noting that the scientific community has yet to reach a definite consensus on the health impacts of mobile phone use.
Is Mobile Radiation harmful to your health? MALAYALAM AND ENGLISHRavi Ramakrishnan
The total mobile connections in the world is more than the global population. There are nearly 7.4 lakh cell phone towers to meet the communication demand in India. Microwave is used for communication between the tower and phone.
The same microwave is used in microwave oven also.
When these waves pass through the food articles in the oven, the water molecules will vibrate and thermal energy is released.
The document discusses the global problem of radiation from technology and its health effects. It defines electrosmog as non-ionizing radiation from wireless devices, computers, and other electronics. Both short-term and long-term exposure can impact health, increasing risks of cancers, mental illnesses, and other chronic diseases. The International Society for Electrosmog Research conducts studies on the reasons for and effects of electrosmog on people, animals, and the environment. New technologies aim to protect against radiation from various electromagnetic sources.
This document discusses the importance of electromagnetics in modern medicine and communications. It describes how electromagnetic waves are used for technologies like MRI machines, x-rays, wireless implants and more in medicine. In communications, electromagnetic waves enable radio, cell phones, wireless networks, and technologies like radar. The document also gives credit to scientists like Faraday, Maxwell, and Hertz for pioneering research in electromagnetics that built the foundation for these modern applications.
Electromagnetic fields from cell phones and other devices can potentially impact human health through both thermal and non-thermal mechanisms. Thermal effects are caused by tissue heating from radiofrequency radiation absorption, while non-thermal effects occur through interactions with molecules, cells, tissues, and organisms. Some studies have found associations between cell phone use and increased risks of brain tumors, acoustic neuromas, parkinson's disease, alzheimer's disease, and behavioral issues in children, though evidence is limited. Electromagnetic fields have also been linked to oxidative stress, effects on cell growth and proliferation, immune and nervous system function, and cardiovascular and reproductive health impacts. Further research is still needed to fully understand the effects of electromagnetic radiation exposure from modern technologies on
The document discusses potential health effects of electromagnetic fields (EMFs) from cell phones and other sources. It summarizes that EMFs can cause both thermal effects, by heating tissues, and non-thermal (athermal) effects, through interactions at the molecular level. Thermal effects are minimized in cell phones due to limits on power output. Potential health impacts of EMFs discussed include effects on biological membranes, cell growth and proliferation, and increased risk of tumors and cancer. The document provides an overview of EMF sources and exposure levels in India.
Cellular Telephone Use & the Risk of Brain Tumors.GhaYooruL
The document summarizes research on the potential health risks of cellular phone use and radiation. It discusses the history of phones and radiation types. It describes studies that found no significant association between phone use and brain tumors overall, though slightly higher risks were found for tumors in parts of the brain near phone use. The document recommends reducing phone use near the head, especially for children, and choosing phones with lower radiation absorption.
Electromagnetic Radiations With Respect to Cell Phone TowerSadaf Liaquat
This document discusses electromagnetic radiation from cell phone towers and their potential health effects. It provides an overview of how cell phone towers work and transmit electromagnetic waves. It then summarizes several peer-reviewed scientific studies that have found adverse health effects like headaches, sleep disturbances, concentration difficulties, and increased cancer rates in populations living near mobile phone towers. The document also notes that children, pregnant women, and pacemaker users may be at higher risk. It concludes by discussing bans on cell phone towers in some areas and references several studies examining the biological effects of electromagnetic radiation.
The document discusses whether radiation from cell phone towers is dangerous to human health. It provides an overview of cell phone towers and the microwave radiation they emit. It also discusses several studies that have linked cell tower radiation exposure to health issues like cancer, neurological problems, and birth defects in humans and animals. However, it notes there is still debate around the issue and more research is needed to understand the health risks. It also discusses some of the myths around the risks of cell tower radiation.
Mobile phone radiation has potential health impacts according to studies. Research shows mobile phone radiation may cause behavioral issues in children, reduce male fertility, and impact the nervous system by altering brain activity and neurotransmitter release. Studies also link mobile phone radiation to oxidative stress, DNA damage, and reduced motility in human sperm. Further research on health effects of mobile phone towers found increased cancer rates and other illnesses like fatigue and sleep problems in people living near towers.
ADVANTAGE:
In typical analog cell phone system, each carrier receives about 800 frequencies to use across a city. With the use of this concept, different cells (non-adjacent) can use the same set of frequencies.
This document summarizes concerns about potential health risks from cell phone radiation. It discusses how cell phone radiation works and the frequencies involved. Lower frequencies like those from cell phones are linked to health issues like cancer and fertility problems, though the scientific community is hesitant to make definitive claims. The document also discusses a former industry-funded researcher who later warned about risks and criticized how studies downplayed some concerning findings.
Biological Effects Of Cell Tower Radiation On Human BodyNeha Kumar
Conference Paper Presentation- 'Biological effects of Cell Tower Radiation' - presented by me and Prof Girish Kumar at International Symposium on Microwave and Optical Technology (ISMOT 2009).
Cell Tower radiation has become of extreme concern as we are exposed to them 24x7 and one cannot do much if the tower antenna is mounted right on top of your home/school/office building etc. In India, currently (2009) there are about 3.75 lakh cell towers installed and the numbers are expected to rise to 4.25 lakh towers by 2010. Radiation level measurements were carried out at various locations and the levels were found to be far above the recommended values. Common complains like Sleep disruption, Headache, Depression, Concentration, Memory loss, behavior, discomfort, irritability, nausea, dizziness, appetite loss, muscle spasms, numbness, tingling, altered reflexes,seizures, paralysis, psychosis, stroke- all related to changes in the electrical activity of the brain have been on a rise. Similarly increased cases of Alzheimer’s , Parkinson's disease,infertility, child leukemia, brain tumor cases have been associated with the continuously emitting cell tower radiation. On reviewing several epidemiological and experimental studies on harmful effects of Cell Tower Radiation on health of human and animals, we recommend safe radiation levels up to 50 μW/m2 , with a upper limit as 100 μW/m2. Towards the end, details of "Radiation Shield" -instrument designed to absorb radiation between frequency 800 to 4000 MHz have been given.
This document discusses the effects of electromagnetic radiation from electronic devices on humans and the environment. It begins by introducing the sources of electromagnetic radiation like cell phones, computers, microwave ovens, and electrical appliances. It then discusses the electromagnetic spectrum and how radiation is classified. The document outlines some biological effects of non-ionizing radiation like DNA damage, risk to children, and increased cancer risk. It also discusses effects on farm animals and birds like decreased milk production in cows and interference with bird navigation. The document concludes by discussing safe radiation limits in terms of Specific Absorption Rate.
This aim of this paper is to investigate the specific absorption rate (SAR) distribution in a human head by
using the finite-difference time-domain (FDTD) calculations, due to exposure to EMF radiation from a
mobile phone at frequencies 900 MHz Mobile Phone model with a λ/2 monopole antenna and a hand head
phone model dimensions are 100 mm x 50 mm x 20 mm. The head model used is a sphere with a diameter
of 18 cm. The FDTD grid size used in the computation was 2.5 mm. The distance between the antenna and
head was 5 mm. To simplify the FDTD simulation, the SAR in the head was calculated without the effect of
the human body. It was found that the SAR induced in the head decreases with the distance from the
radiating source.
Effects of Mobile Phones on Auditory acuity. Dr. Balaji P.A, Dr. Kailash N.pdfDrBalaji8
This document summarizes a study that evaluated the effects of mobile phone use on auditory acuity. The study compared hearing thresholds between 300 mobile phone users and 100 non-users based on pure tone audiometry. Results found statistically significant increases in hearing thresholds among mobile users at certain frequencies. Specifically, thresholds were higher for mobile users at 1kHz, 4kHz, 6kHz and 8kHz frequencies compared to non-users. Dominant ears (those used for calls more often) also had higher thresholds than non-dominant ears at some frequencies among mobile users. However, the duration and amount of mobile use did not correlate with hearing thresholds. The study concludes mobile use may mildly impair hearing but further research is
Effects of Mobile Phones on Auditory acuity. Dr. Balaji P.A, Dr. Kailash N.pdfDrBalaji8
RJMS 2011;1(1):25-30.
Abstract
Background and Objectives: There is an exponential
increase in the usage of mobile phones throughout the
world. Mobile phone handsets are usually held near
the ear during conversations and these phones emit
radiations (electromagnetic fields). These radiations
have a propensity to cause biological health hazards.
This has raised the question of whether the usage of
mobile phones has any detrimental effects on the
hearing of the user. The aim of this study was to
evaluate the auditory acuity in normal subjects using
mobile phones and subjects not using.
Methods: A total 400 subjects were selected
considering inclusion and exclusion criteria. Among
these 300 were mobile users and 100 non-users. These
two groups were subjected to pure tone audiometric
assessment. The resulting data was statistically
analyzed.
Results: There was an increase in the hearing
thresholds with p-value <0.05 at frequencies of lkhz
(BC), 4khz (AC and BC), 6khz(AC) and 8khz(AC) in
the mobile phone users compared to that in non-users.
The thresholds in the dominant ear were increased
with p-value <0.05 at frequencies lkhz(AC and BC),
2khz(AC and BC), 4khz(AC and BC), 6khz(AC) that
compared in non-dominant ear. The different duration
of exposures (in months) and the average time
(min/day) exposures did not have any significant
effect on the hearing thresholds.
Conclusion: There is a mild increase in the hearing
thresholds in mobile users, but the probable cause of
hearing impairment cannot be proved by this study
and the possible pathophysiology is also not
understood and it needs to be investigated further...
Key words: Mobile phones, electromagnetic fields
(EMF), Pure tone audiometry, Air conduction (AC),
Bone conduction (BC).
Effects of Mobile Phones on Auditory acuity. Dr. Balaji P.A, Dr. Kailash N.pdfDrBalaji8
Abstract
Background and Objectives: There is an exponential
increase in the usage of mobile phones throughout the
world. Mobile phone handsets are usually held near
the ear during conversations and these phones emit
radiations (electromagnetic fields). These radiations
have a propensity to cause biological health hazards.
This has raised the question of whether the usage of
mobile phones has any detrimental effects on the
hearing of the user. The aim of this study was to
evaluate the auditory acuity in normal subjects using
mobile phones and subjects not using.
Methods: A total 400 subjects were selected
considering inclusion and exclusion criteria. Among
these 300 were mobile users and 100 non-users. These
two groups were subjected to pure tone audiometric
assessment. The resulting data was statistically
analyzed.
Results: There was an increase in the hearing
thresholds with p-value <0.05 at frequencies of lkhz
(BC), 4khz (AC and BC), 6khz(AC) and 8khz(AC) in
the mobile phone users compared to that in non-users.
The thresholds in the dominant ear were increased
with p-value <0.05 at frequencies lkhz(AC and BC),
2khz(AC and BC), 4khz(AC and BC), 6khz(AC) that
compared in non-dominant ear. The different duration
of exposures (in months) and the average time
(min/day) exposures did not have any significant
effect on the hearing thresholds.
Conclusion: There is a mild increase in the hearing
thresholds in mobile users, but the probable cause of
hearing impairment cannot be proved by this study
and the possible pathophysiology is also not
understood and it needs to be investigated further...
Key words: Mobile phones, electromagnetic fields
(EMF), Pure tone audiometry, Air conduction (AC),
Bone conduction (BC).
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Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
S1 p2 rs_sharma
1.
2. Environment represents the totality ofEnvironment represents the totality of
physical, chemical, biological,physical, chemical, biological,
behavioral and socioeconomic factorsbehavioral and socioeconomic factors
or conditions that constitute theor conditions that constitute the
external milieu surrounding the humanexternal milieu surrounding the human
organismorganism
- Claude Bernard
4. Effect of
Electro-Magnetic Field
(EMF) on Human
Health
Dr. R. S. Sharma
Sr. Deputy Director General &
Scientist-G
Division of RCH
Indian Council of Medical Research
New Delhi –110 029
5. Typical sources of electromagnetic fields
Frequency
range
Frequen
cies
Field source Examples of maximal
intensities
Static
frequency
(SF)
0 Hz Natural
VDU (video displays)
MRI and other
diagnostic/scientific
instrumentation
Industrial electrolysis
70 μ T
1 T in the tunnel; 200 mT at the
gate:
< 0.5 mT outside the device
room
10-30 mT at the level of the feet
Extremely
low
frequency
(ELF)
0-300 Hz
50 Hz
Power lines
Domestic distribution
Electric engines in cars, train
and tramway
10-20 μ T under the line or 10
Kv/m
<0.i-0.2 μ T (microteslas) in
room
50 μ T and 300 V/m
Intermediate
frequencies
(IF)
300 Hz –
100 kHz
Typical examples are: VDU,
anti theft devices in shops,
hands free access control
systems, card readers and
metal detectors
30 to max 700 nT
10 V/m
Radio
frequencies
(RF)
100 kHz
– 300
GHz
Broadcasting and TV; mobile
telephony microwave oven
Radar, portable and stationary
radio transceivers, personal
mobile radio.
0.1 W/m2
0.5 W/m2
0.2 W/m2
6. Historical Prospective
• The invention of cell phone came about mostly as a
Corporate Strategy to keep one firm monopolizing a set
of radio channels that looked as if they might one day be
valuable.
• 1947 – 1972 : AT&T, Bell Lab, Motorola
• 4th
Dec. 1972 Mr. Cooper announced that shortly he is
going to develop a device that could send and receive
voice massages without wire.
• 3rd
April, 1973 He called to Joel S Engel
7. • Once produced, the first cell phone took off like one of those
successful rockets than being lunched by NASA
• It all occurred in a culture that had little understanding of what radio-
frequency signal were or how they worked.
• Govt. Agency in USA were well aware about the technology and
about its health effects.
• Mays Swicord – who shaped FDA, in his thesis submitted to
University of Maryland reported that “ RFR at precisely the same
frequency range being proposed for cell phone could disturb the
DNA deep within the center of the Brain Cell.
• 1994 he left FDA and in the same year the FDA approved the cell
phone for general use without any safety testing at all.
• He joined Motorola as Senior researcher and Editor of the
Bioelectromegnetics Society News Letter.
•
8. M• 1997 – Jerry Phillips submitted a paper in this new letter reporting
that “ Genes of rodents exposed to cell phone like radiation looked
significantly worse than those unexposed animals.
• But when this paper was published, in the end it was mentioned that
“the changes in genes expression following cell phone radiation is
probably of no physiological consequences.
• By the time his paper was published , he lost his job and lost his all
funding.
• 1993 - FDA through Microwaves News reported several studies
showing that microwave radiation increases cancer risk.
• But in May1997 FDA reported that “ little is know about the
possible health effects of repeated or long term exposure to low
level of RFR.
9. • 2000, Feb. FDA announced that “ there is currently insufficient
scientific basis for concluding either that wireless communication
technology are safe or they pose risk to users”. – advised a well
planned animal study.
• Meanwhile technology changed from Analog cell phone.
• Gro Harlem Brundtland : former WHO DG in 2002 reported that
• Nearby operating cell phone could make her ill.
• Mike Repacholi was asked to examine her statement. And he said
that “ she must have been crazy”
• He then Chaired number of WHO studies
• He helped formed ICNIRP and even currently also Emeritus Director
of ICNIRP.
•
10. • ICNIRP : is not directly funded by the industry but its half of the
members are associated with a project funded by
• Royal Adelaide Hospital, Australia
• Science is limited by the measurement techniques but
• its even more limited by political and economic circumstances
that determine ;
• what questions are asked
• who gets to answer them
• who funds research
• where and when that work become public
•
11. Cell Phone Biological Studies
Effect No Effect Total
Industry
Funded
27 (29%) 66 (71%) 93 (30%)
Non-
Industry
Funded
147 (69%) 67 (31%) 214 (70%)
Total 174 (57%) 133 (43%) 307
Chris Busby and Roger Coghill (2006)
13. Science of cell phone
• Cell phone signals are weak, invisible and fast.
• Radiating in all direction at low power radio frequency.
• It can not heat human tissue
• If RFR can not induce heat than it can not cause any other problem
• But it violates the basic law of Physics
• All energy is conserved, then question arises that if RFR energy is
not transformed in to heat then it must have transfoemed in to
• Potential energy
• Kinetic energy
• Chemical energy
14. Type of Mobile Radiation:
• Between 900 to 1800 MHz
• Falls in the range of microwave radiation
http://www.astrosurf.com/luxorion/Radio/spectrum-radiation.png
15. 1. Biological effects – Effects are
measurable responses to a stimulus or
to a change in the environment and are
not necessarily harmful to our health
2. Health Hazard - Changes that are
irreversible and stress the systems for
long period of time.
17. Thermal Effects of Mobile Radiation
• The specific energy absorption rate (SAR) is
measured in W/Kg
• The measurement is important when assessing
possible health effects
• Microwaves absorbed by the body are converted
to heat
• The amount of heat produced is related to the
amount of energy deposited
18. • An effect of microwave radiation is
dielectric heating, in which any
dielectric material (e.g., living tissue)
is heated by rotations of polar
molecules induced by the
electromagnetic field
• In the case of a person using a cell
phone, most of the heating effect will
occur at the surface of the head,
causing its temperature to increase
by a fraction of a degree
• In this case, the level of temperature
increase is an order of magnitude
less than that obtained during the
exposure of the head to direct
sunlight
• The brain's blood circulation is
capable of disposing of excess heat
by increasing local blood flow.
THERMAL EFFECT – Mechanism
Source: http://www.mee.tcd.ie/
19. Thermal Effect - Possible mechanism
Tissue
Radio Frequency RadiationsRadio Frequency Radiations (RFR)(RFR)
Normal defenseNormal defense
responseresponse
activate
Thermo receptor molecules in a cell
may activate
Cascade of II & III messenger system,
gene expression
and
Up regulation of Heat Shock Proteins (HSPs)
Chronic expression of HSPs
may promote
Oncogenesis/Metastasis
20. Athermal Effects of Mobile Radiation
• Absorbed at molecular level and manifests changes in vibrational
energy of the molecules producing various molecular
transformations and alterations {[Microwaves irradiating the
community, Hidden hazards, Bantan Books Publisher, Australia,
1991}
• It has been argued that athermal effects could be reinterpreted as a
normal cellular response to an increase in temperature
• It also has been hypothesized that –
• Hormonal control of bodily functions may be effected
• In laboratory, low SARs effect the bio-energetic of living systems
• Chromosomal defects have arisen in a small number of mobile
phone network engineers
Source: http://www.ksu.edu.sa/
21. Pathophysiology of cell phone radiation: oxidative stress and carcinogenesis with
focus on male reproductive system
Infertility
Nisarg R Desai et al, 2009
25. S.
No.
R. F Source
Operating
Frequency
Transmission
Power
Numbers
1 AM/FM Tower 540 KHz – 108 MHz 1 KW – 30 KW 503
2 TV Tower 48 MHz – 814 MHz 10 – 500 Watt 1201
3 Wi-Fi 2.4 – 2.5 GHz 10 – 100 mW --
4 Cell Towers 800, 900, 1800, 2200,
2300 MHz
20 W 5.4 Lacs
5 Mobile Phones GSM-1800/CDMA
GSM-900
1 W
2 W
919+
Million
The radio frequency sources in India
26. Source – Telecom Regulatory Authority of India, 1997-2007 and 2014
1997 2002 2007 2014
Millions
27.
28.
29. Factors Influencing effect of EMF on
Human Health
1. Mass, shape and size of the body,
2. The orientation of the body with the field vectors
3. The electrical properties of both the body and the environment.
i. ambient temperature,
ii. air velocity,
iii. humidity
iv. body insulation.
4. Characteristics of the individual i.e. age, gender, activity level,
muscles content,
5. Fat contents,
6. Bone Mineral Density,
7. Debilitation and/or other diseases would also contribute.
8. As all these factors have not been studied in a comprehensive
manner and hence no conclusions are possible.
31. Effects on biological membrane permeability
RFR alter the transport of Cations through ion-
channels located in biological membrane
Can affect the membrane potential and nervous
signal transduction.
Change
32. Effects on Cell Growth and Proliferation
• RFR exposure in vitro
leads to
Change in transcription and cell proliferation
assessed by
in-corporation of an RNA-precursor and DNA-
precursor respectively.
• RFR exposure linked to changes in
cell cycle
33. Tumors
Glioma : Type of tumor starts in the glial
cells of the brain
Acoustic neuroma : Type of tumor of myelin forming
cells (schwann cells) of 8th
cranial nerve
Meningioma : Type of tumor arising from
meninges, the membranous
layers surrounding the CNS
34. Cancer
• Most laboratory studies were unable to find a
direct link between exposure to RFR and the
incidence of mutation or cancer.
• Most in vitro studies DNA or chromosomal
damage due to RFR
• Several in vivo studies Direct effect of
in rodents RFR on DNA
35. Acoustic neuromas
• Particular interest
• Doubling of the relative risk estimate after 10 years of
regular mobile phone use compared to subjects who
never used mobile phone in Denmark and Sweden
(Christe nsen et al 2004, Lonn et al 2004)
• Location
• Short induction period
• Six of thirteen components of Interphone study were
pooled for joint analysis
No over all association was seen in all long term users
Data suggested (Schremaker 2005)
There may be increased risk when the preferred side of
the head used is considered in analysis.
Limitation in exposure assessment
36. Cancer ……
Childhood leukemia
• Meta analysis of 12 studies using a time-weighted
average of exposure greater than 3 mg
68% increased risk of childhood leukemia
• International Agency for Cancer Research (IARC)
EMF (> 1.4 mG) Possible human carcinogen or
group 2b carcinogen
(Greenland; 2000)
37. Meta analysis reported increased risk for
childhood brain tumors in EMF/RFR exposed
children.
Cancer ……
Childhood Brain Tumors
(Wartenberg et al; 1998)
Swiss agency for
Environment, Forest
and Landscape (1999)
EMF/RFR fields
“Possible carcinogen”
38. Lennart Hardell Group – Studies
• Investigation confirmed an association between
mobile phone use and malignant brain tumors
(2010).
• Use of mobile phones and cordless phones is
associated with increased risk for glioma and
acorestic neuroma (2012-13).
• No conclusive evidence of an association between
use of mobile and cordless phones and menignioma
was found. An indication of increased risk was seen
in the group with highest cumulative use (2013).
39. • The percentage of tumor volume increased per year
of latency period and per 100 hrs of cumulative use,
statistically significant. This study confirmed the
previous study findings (2013).
Point of worry
• Highest risk for glioma and acoustic neuroma in
subjects who started use of cell phone before the
age of 20 years.
• The prognosis of glioma is worse, the longest time
one has used the cell phone – shortens the survival.
40. Cell phone use and behavioral
problems in young children
• Danish National Birth Cohort (DNBC)
• Prenatal and postnatal exposure to cell phone
use and behavioral at age 7 yrs in 13,000
children were studied.
JECH, Dec. 2010
Exposure to cell phones prenatally, and to a lesser
degree postnatally, was associated with more
behavioral difficulties
41. Effects on the Nervous system
Possible changes due to RFE exposure
• Blood – brain barrier permeability
• Brain electrical activity
• In the release of neurotransmitters
• In melatonin secretion
• In retina, iris and corneal endothelium
• In behavioral, cognitive, neurochemical and
neurological effects in human and animals
(OPHA, 2003; Dcosta et al, 2003; Sienkiewicz et al, 2005; Besset et al, 2005)
42. Effects on the Nervous system…
Concern
• Acoustic neuroma
• Brain tumors
• Tumors of the salivary gland
• Impairment to short terms memory
• Headaches
• Sleep disturbance
• Depression & tiredness
• Increase agitation in combination with
nervous exhaustion
(Ozturan et al, 2002; A rai et al, 2003; Parrzzini et al, 2005)
43. Effects on the Nervous system…
Concern
• Fatigue
• Muscle weakness
• Reduced intellectual activities
• Absent mindedness
• Inability to concentrate
• Increase sensitivity to external factors such as noise, bright
light etc.
• Attacks of giddiness/dizziness
• Unstable gait
• Cold hands and legs
• Heart problems such as palpitation, fast & slow heart beat
• Breathing problems
• Overactive thyroids
• Irregular menstrual cycle (Back et al, 2003; Uloziene et al, 2005)
44. Effects on immune system
• Some evidence of immune system response
similar to those resulting from thermal stress
are triggered by non-thermal exposure to RF-
fields.
• Adverse effects on the immune system can
indirectly predispose to infection and caner.
• Individual variation in response to RFR.
45. Cardiovascular functions
• in blood pressure after cell phone exposure
(Braune et al 1998)
• in blood flow in the external ear have been replicated
(Paredi et al, 2001; Curcio et al 2004)
Not replicated by Braune et al 2002
Vasodilatation caused by heating of mobile phone
electronics and battery
because of
46. Reduction in male fertility in rates (Kowalczuk, 1983)
30 min exposure
Did not observe same effect (Beechey et al, 1986;
Dasdasi et al, 1999)
Reduction in seminiferous tubal diameter (Dasdog et al, 1999)
and ⇑ in rectal temperature
Lower sperm count in military personal (Danulescu et al, 1996;
associated with potential RFR exposure weyandt et al, 1996
Schrader et al, 1998)
A cluster of six cases of testicular
cancer among traffic policemen
using microwave generators (Davies & Mastofic, 1993)
Excess risk of testicular cancer in
Military personal exposed to
Microwaves & radio wave (Hayes et al, 1990)
30% ⇓ in sperm count in heavy
users of cell phone (Fejes et al, 2004)
Effect of RFR on Reproduction
47. Hungarian Study
221 men for 13 months
Heavy use
of mobile Vs Non users
Suggested further studies to confirm
Sperm Count
30% drop in sperm count in mobile users
48. Criticisms
It did not take into account various
factors e.g.
a) Stress level of user
b) Age of user
c) Coital frequency
d) Amount of radiations the man had been
exposed to
e) Criteria’s of heavy user
49. American Society for Reproductive Medicines
(Annual Meeting)
Dr. Ashok Agarwal – Cleveland Clinic Foundation US
Cleveland – Mumbai (Sept. 04 – Oct. 05)
- 1 Normal men - 86 million/ml
- Cell phone (< 2 hrs./day) - 76 million/ml
- 2 to 4 hrs./day - 71/ million/ml
- > 4 hrs./day - 66/million/ml
50. Apoptosis, cell count and antioxidant changes at
900MHz mobile phone radiation in male wistar rats
Prof. J. Behari
School of Environmental Sciences, JNU, New Delhi
Antioxidant enzyme activity in sperm cells.
Antioxidant
Enzyme
Control Exposed P<0
.001
SOD 198.78 ± 7.53 150.19 ± 6.49 *
GPx 4.13 ± 0.19 2.38 ± 0.09 *
CAT 6.86 ± 0.76 9.81 ± 1.60 *
Comparative Analysis of Sperm cells Between 2.45 GHz and
900MHz
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
Total Sperm
Count (2.45
GHz)
Total Sperm
Count (900
MHz)
Total Apoptosis
(2.45 GHz)
Total Apoptosis
(900 MHz)
TotalSpermcount(1x10
6
)
Control
Exposure
* *
* *
Comparative analysis of sperm between 900MHz & 2.45GHz
Difference between body weight of offspring and their
number, where p< 0.05 as indicated significant shown as *
A photomicrograph showing the DNA double strand break of
exposed (figure 2a) as compared to control (figure 2b) rat sperms
observed in fluorescent microscope (100X). Dye ethedium bromide
51. The effect of pulsed 900-MHz GSM mobile phone radiation on the acrosome
reaction, head morphometry and zona binding of human spermatozoa .
Highly motile human spermatozoa
exposed for 1 h to 900-MHz, mobile
phone radiation. SAR 2.0 W/kg.
acrosome reaction
was evaluated using
flow cytometry
Morphometric parameters
were assessed using
computer-assisted sperm
analysis
Sperm-zona binding
was assessed,using
the hemizona assay
• This study concludes that although RF-EMF exposure did not adversely
affect the acrosome reaction,
• It had a significant effect on sperm morphometry.
• Significant decrease in sperm binding to the hemizona was observed.
• These results could indicate a significant effect of RF-EMF on sperm
fertilization potential
Falzone et al. (2010)
Conclusion:-
In Vitro Human Study
52. Effects of radiofrequency electromagnetic waves (RF-EMW) from cellular
phones on human ejaculated semen: an in vitro pilot study
Semen Sample
Measurement of:
• Sperm parameters
• ROS
• TAC
• DNA integrity
Control
(no exposed to cell phone radiation)
Exposed Sample
(exposed to cell phone radiation for 1 hr)
Sony Ericsson
w300i;
In talk mode
850 MHz
frequency;
Max. power <1 W;
SAR 1.46 W/kg
Both samples kept at room temperature
Ashok Agarwal, 2009.
Cell phone radiation causes oxidative stress in neat semen and leads to
decreases in spermatozoa motility and viability.
It can be speculated that carrying a cell phone in a pocket may cause
deterioration of sperm quality through oxidative stress.
Conclusions:
53. Mobile Phone Radiation Induces Reactive Oxygen Species Production and DNA
Damage in Human Spermatozoa In Vitro study
22 normozoospermic donors, age - 24.1±1.1 y
Incubated for 16h at
21ºc, Placed within
waveguide
Incubated for 16h at
21ºc, Placed outside
waveguide
Exposed Group Control Group
Light Microscopy, Dihydroethidium Assay, MitoSOX Red (MSR) Assay, Assay for 8-
hydroxy-29-deoxyguanosine (8-OH-dG), TUNEL Assay, Analysis by Flow Cytometry
De Iuliis GN, et al. (2009)
High quality spermatozoa collected
Percoll gradient–purified
Spermatozoa (15x106
Cell) were suspended
in 1ml HEPES-buffered
BWW in a 35mm
Petri dish
Assays
RF-EMR exposure enhances mitochondrial reactive oxygen species generation by human
spermatozoa.
Decreasing the motility and vitality of these cells.
These findings have clear implications for the safety of extensive mobile phone use by
males of reproductive age.
Potentially affecting both their fertility and the health and wellbeing of their offspring.
Conclusions:
54. Effect of cell phone usage on semen analysis in men attending
infertility clinic: an observational study
Three hundred sixty-one men
Group D: >4 h/dayGroup C: 2–4 h/dayGroup B: <2 h/dayGroup A: no use
divided into four groups
Sperm parameters
(volume, liquefaction time, pH, viscosity, sperm count, motility, viability and morphology).
Use of cell phones decrease the semen quality in men by decreasing the sperm
count, motility, viability, and normal morphology. The decrease in sperm parameters
was dependent on the duration of daily exposure to cell phones and independent of
the initial semen quality.
Mean sperm motility, viability, and normal morphology were significantly different
in cell phone user groups within two sperm count groups. The laboratory values of
the above four sperm parameters decreased in all four cell phone user groups as
the duration of daily exposure to cell phones increased.
Conclusion
Result
Agarwal, Deepinder and Kartikeya (2007)
55. Effect of early pregnancy electromagnetic field exposure on embryo
growth ceasing.
Analysis was conduced based on the interview of 138 embryo growth
ceasing cases and the matched control using multi factor conditional
logistic regression analysis.
Han J et al. 2010
• Embryo growth ceasing was significantly higher in the cases than the control in single
factor analysis.
• By multi factor analysis on ly watching TV and using mobile telephone during the first
term of pregnancy were associated with risk of embryo growth ceasing.
Observations
Watching TV and using mobile telephone during the first term of pregnancy
may increase the risk of embryo growth ceasing significantly
• Proportion of watching TV
• Using mobile phone, Microwave Oven, electromagnetic equipments,
near residence and work place
• High voltage lines: < or = 100 m
• Cell phone towers: < or = 500 m
Suggestion: Pregnant women should not use the appliances for a long time
or do the safety protection when using the appliances e.g. distance
protection.
56. • Significant increase in peak heart rate, serum total
cholesterol, LDL, triglycerides levels in acute RFR
exposed male students in comparison to control
students (Parkar et. al 2010)
• Long term and intensive mobile phone use may cause
inner ear damage (Panda et al, 2008)
• Review – regular and long term use of mobile phone
can have negative impact up on biological system
especially on Brain.
• Increased reactive oxygen species (ROS) play in
important role by enhancing the effect of these
radiations which may caused neuro-degemerative
diseases (Kesari et al. 2013)
57. ICMR Study
• ICMR has initiated a multi-disciplinary cohort study in Delhi & NCR
to find out adverse effects of RFR, if any, emitted from cell phone on
adult Indian population.
• Under this study efforts are going on to examine whether use of cell
phone is associated with
– reproductive dysfunctions,
– infertility,
– neurological disorders (cognitive behavior, sleep related
disorders, depression etc.),
– cardiovascular disorders,
– Otorhinolaryngology (ENT) disorders and promote cancer if any,
in Human Volunteers.
58. • Under this study efforts are also going on to survey the health
status of the people residing near the cell phone tower in Delhi.
• The provision has also been made under this study to measure
specific absorption rate, power density, wave length and frequency
of RFR emitted from various types of cell phones used by the
enrolled subjects as well as from cell phone towers installed at
various places in Delhi.
• The physical characteristics of RFR emitted from various cell
phones will be correlated with the clinical & laboratory findings. The
study is ongoing.
60. 1. 869-890 MHz (CDMA)
2. 935-960 MHz (GSM 900)
3. 1805-1880 MHz (GSM 1800)
4. 2110-2170 MHz (3G)
5. 2190-2310 MHz (4G)
Cell phone tower transmit RFR in the
following frequency range
61. Health Effects from Mobile Base Station
1. Study of the health of people living in the vicinity of
mobile phone base stations. (Paris)
(Santini et al., 2002)
Found significant health effects on people living within
300 metres of mobile phone base stations.
Conclusions include the recommendation:
“… it is advisable that mobile phone base stations not
be sited closer than 300 meters to populations”
62. 2. “Effects of Global Communications System Radio-
Frequency Fields On Well Being and Cognitive
Function of Human Subjects With and Without
Subjective Complaints” (Netherlands)
(Netherlands Organization for Applied Scientific Research (TNO), 2003)
Health Effects from Mobile Base Station
• Found significant effects on wellbeing i.e, headaches,
muscle fatigue/pain, dizziness etc from 3G mast
emissions
• Those who had previously been noted as
‘electrosensitive’ under a scheme in that country were
shown to have more pronounced ill-effects, though
others were also shown to experience significant effects.
63. Health Effects from Mobile Base Station
3. The Microwave Syndrome - Further Aspects of a
Spanish Study
(Oberfeld Gerd et. al. 2004)
This study found significant ill-health effects in those
living in the vicinity of two GSM mobile phone base
stations. The strongest five associations were found
• depressive tendency,
• fatigue,
• sleeping disorder,
• difficulty in concentration and
• cardiovascular problems
64. Health Effects from Mobile Base Station
4. Increased Incidence of Cancer near a Cell-phone
Transmitter Station (Israel)
(Ronni Wolf & Danny Wolf, 2004)
Based on medical records of people living within
350 metres of a long-established phone mast,
Showed
1. A fourfold increased incidence of cancer generally
compared with the general population of Israel
2. A tenfold increase specifically among women,
compared with the surrounding locality further from the
mast
65. Health Effects from Mobile Base Station
5. Naila Study, Germany (November 2004)
Report by researchers (five medical doctors)
The basis of the data used for the survey were PC files of the 1000
patients case histories between the years 1994 and 2004.
the proportion of newly developing cancer cases was significantly
higher among those patients who had lived during the past ten years
at a distance of up to 400 meters from the cellular transmitter site,
which has been in operation since 1993, compared to those patients
living further away, and that the patients fell ill on average 8 years
earlier.
In the years 1999-2004, i.e. after five years’ operation of the
transmitting installation, the relative risk of getting cancer had
trebled for the residents of the area in the proximity of the installation
compared to the inhabitants of Naila outside the area.
analyzed
66. Health Effects from Mobile Base Station
6. Austrian Study 2005
Electro sensitive men (3) and women (9) were expose to three Radiation density
emitted from a shielded cell phone base station
• first phase - 26 microWatt/m2,
• second phase 3327 microWatt/m2
• third phase 26 microWatt/m2 again.
Environmental parameters were measured, such as
radiation by television and FM-radio, noise, CO2, temperature, relative humidity,
low frequency magnetic fields and soherics (electrical discharges in the
atmosphere, possibly causing radiation).
During the second phase the parameters of all the brainwaves, measured by EEG,
changed significantly. Afterwards the testees were asked to describe their
experiences. All of them felt unwell during the second phase. They reported
symptoms like buzzing in the head, palpitations of the heart, unwellness,
lightheadedness, anxiety, breathlessness, respiratory problems, nervousness,
agitation, headache, tinnitus, heat sensation and depression.
This is the first worldwide proof of significant changes of the electrical currents
in the brain by a cell phone base station at a distance of 80 meters.
67. The summary of the recommendation made by the
Inter-Ministerial Committee on this subject
Mobile Handsets: -
1. Adoption of SAR level for mobile handsets limited to 1.6 Watt/Kg,
averaged over a 6 minutes period and taken over a volume containing a
mass of 1 gram of human tissue as per the FCC norms of United States.
2. SAR value information is to be embossed and displayed in the handset.
3. Information on SAR values for mobile handsets should be readily
available to the consumer at the point of sale so that one can make sure
of the SAR value of the handset while buying a cell phone.
4. Government may consider amendments in the Indian Telegraph Act 1885
& rules notified there under and necessary legislations if any so that only
mobile handset satisfying radiation standards should be permitted for
import / manufacture or sold in the country.
5. Mobile hand set manufactured and sold in India or Imported from other
countries should be checked for compliance of SAR limit and no hand
sets of SAR value above the prescribed standard adopted in India should
be manufactured or sold in the country.
68. 6. SAR data information of the mobile handsets should be available on the
manufacturer’s web site and in the manufacturer’s handset’s manual.
7. To bring awareness, the manufacturer’s mobile handset booklet should
contain the following for safe use :
a. Use a wireless hands-free system (headphone, headset) with a low
power Bluetooth emitter to reduce radiation to the head.
b. When buying a cell phone, make sure it has a low SAR.
c. Either keep your calls short or send a text message (SMS) instead. This
advice applies especially to children, adolescents and pregnant women.
d. Whenever possible, use cell phone when the signal quality is good.
e. People having active medical implants should keep their cell phone at
least 30 cm away from the implant.
8. The Information is made available on Government website with list of
SAR values of different mobile phones.
69. Mobile Base Stations: -
9. The RF exposure limits in India may be lowered to 1/10th of the
existing level keeping in view the data submitted by COAI/ AUSPI
during presentation made to the committee and trend adopted by
other developed countries.
10. To provide static continuous testing / measuring centers for online
monitoring of radiation level at prominent places in metro/cities and
the data to be sent to the central server for information.
11. Apart from self certification for compliance of radiation norms on EMF
exposure as is presently being done, the mobile service providers
should also measure the radiation level of certain prominent places
and display it for information of the general public. They should also
have mobile unit for its measurement wherever necessary.
12. DOT should create a national data base with the information of all the
base station, their emission levels and display on public domain for
public information.
13. Impose restrictions on installation of mobile towers near high density
residential areas, schools, playgrounds and hospitals.
70. 14.For the future expansion of telecom network in the country use low power
micro cell transmitters with in-building solutions in place of the present
trend of using high power transmission over mobile towers / high rise
buildings.
15.To conduct the long term scientific research related to health aspect of EMF
radiation exposure and associated technologies in India in the following
areas:
o Health effect of RF exposure in children.
o Health effect of RF exposure in Foetus, mothers and elderly persons.
o Combined electromagnetic field radiation effect exposure from multiple
antennas of a shared infrastructure sites
16.It is recommended for use of hands free and ear phone technologies such
as blue tooth handsets and ear phone so as to minimize the contact of head
with cell phone.
17.Department of Telecom may create a document “Radio waves and safety in
our daily life” indicating various Dos and Don’ts related to mobile users
clarifying various myths regarding deployment and use of radio waves and
mandate each operator to print and issue the same to their customer at the
point of sale for enhanced customer awareness. This will help in facilitating
the right inputs and creating an environment where everyone can use the
radio waves safely.
71. Things you can do to reduce the adverse
effects
• Children should only use cell phones next to their heads for
emergencies
• While talking on your cell phone, try to keep the cell phone
away from your body as much as possible
• Avoid using your cell phone when the signal is weak
• Avoid carrying your cell phone on your body at all times
• If you must carry your cell phone on you, make sure that the
keypad is positioned toward your body
72. • Only use your cell phone to establish contact or
for conversations lasting a few minutes
• Switch sides regularly
• Communicate via text messaging rather than
making a call
• Avoid using your cell phone in places like a bus
• Choose a device with the lowest SAR possible
77. Conclusion
If an action or policy has a potential risk of causing harm
to the public or to the environment, in the absence of
scientific consensus, and that the action or policy is
harmful, then the burden of proof that it is not
harmful, falls those taking an action and not on the
victims of such action
Need to develop health based precautionary guidelines
in the Country
78.
79. THERMAL EFFECTS – Limits and Guidelines for
Mobiles
Federal Communications Commission (FCC):
• For exposure from wireless telephones, the allowable FCC SAR
limit is 1.6 W/kg, as averaged over one gram of tissue
International Commission on Non-Ionizing Radiation Protection
(ICNIRP):
• Guidelines for the general public recommend SAR value – 2.0 w/m2
National Radiological Protection Board (NRPB):
• The limit on exposure to microwave radiation emitted on mobiles
is 0.1 W in any 10g of tissue
World Health Organization (WHO)
• EMF radiation – 2B Carcinogen
80. International Exposure Limits for RF Fields
9.2 W/m2
International Commission for Non-ionizing Radiation Protection
(ICNIRP)12
3 W/m2
Exposure limit in Canada (Safety Code 6, 1997)8
2 W/m2
Exposure limit in Australia 1,6
1.2 W/m2
Belgium9
0.92 W/m2
Recently implemented in India2
0.9 W/m2
Slovenia10
0.5 W/m2
Exposure limit in Auckland, New Zealand1,6
0.1 W/m2
Exposure limit in Bulgaria, Lithuania, Russia, Poland10
0.1 W/m2
Exposure limit in Italy 4
0.1 W/m2
Exposure limit in Switzerland5
0.1 W/m2
Exposure limit in China11
0.07 W/m2
Exposure limit in Switzerland in sensitive area5
0.024 W/m2
Exposure limit in CSSR, Luxembourg, Belgium9
0.045 W/m2
Exposure limit in Belgium in sensitive areas9
0.02 W/m2
Exposure limit in Hungary3
0.001 W/m2
“Precautionary limit” in Austria, Salzburg City only7
81. Conclusion
The review of literature does not establish conclusive
evidence on the safety or risk of RFR emitted from cell
phone and cell phone tower but growing body of
scientific evidences indicates some bio-effects and
possible adverse health effects of RFR which merit
further investigations
Need to develop health based precautionary guidelines
in the Country based on Indian epidemiological
studies