Lead pollution
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The document summarizes the history of lead use and discovery, sources of lead exposure like gasoline and cigarettes, symptoms of lead poisoning including fatigue and hypertension, and recommendations to reduce exposure such as using unleaded petrol and avoiding smoking. It was produced by students to raise awareness about lead as an environmental threat and acknowledges the teachers and references used to research the topic.
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Lead as pollutant
This document provides an outline for a paper on lead exposure and health risks. It begins with an introduction to lead's physical and chemical properties. It then discusses where lead is commonly found in the environment, such as in soil, water, paint, gasoline, and certain consumer products. The document outlines the various ways people can be exposed to lead and the health effects of lead poisoning, which can impact the brain, kidneys, and blood. It provides details on signs and symptoms of lead exposure and concludes by discussing the medical effects of lead on children and adults.
Mercury and heavy metal pollution
Heavy metals such as mercury, cadmium, and lead are naturally occurring but are also released from industrial and other human activities. They persist indefinitely in the environment and can accumulate in living organisms, posing health risks. Mercury is a liquid metal used historically in products like thermometers and batteries but now regulated. It evaporates easily and bioaccumulates as the toxic methylmercury in fish. Exposure can cause neurological, kidney, and developmental problems. While an essential element for life, mercury becomes toxic and dangerous at higher levels.
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Heavy metal pollution from sources like industrial effluents and vehicle emissions is a growing global problem. Some key heavy metals that are toxic to humans include cadmium, lead, and mercury. Cadmium toxicity can cause vomiting, diarrhea and bone deformities. Lead exposure is linked to anemia, kidney problems, and changes in bone marrow. Mercury poisoning results in issues like diarrhea, breathing difficulties, and abdominal pain. Heavy metals are a threat because unlike some other pollutants, they do not break down in the environment.
Heavy Metals
Heavy metals such as mercury, cadmium, chromium, and lead were discussed in the document. These metals can enter the environment from natural and human sources and persist indefinitely. While some heavy metals are essential in small amounts, higher concentrations can be toxic. Exposure to heavy metals can occur through food, water, air and cause health effects like organ damage and cancer. Current research studies analyzed heavy metal levels in foods, soils and plants in the Philippines and found levels exceeding safety limits.
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Air pollution is caused by both natural sources like dust storms and volcanic emissions, as well as human activities such as burning fossil fuels. The main primary pollutants from human activity are nitrogen oxides, sulfur oxides, carbon monoxide, particulate matter, and volatile organic compounds emitted from vehicles, power plants, industry, and other sources. These primary pollutants can then form secondary pollutants in the atmosphere through complex chemical reactions. Air pollution poses risks to human health through respiratory and cardiovascular issues and can also damage ecosystems and contribute to global warming through increased greenhouse gases.
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The document discusses air pollution, its causes, effects, and methods of control. It states that air pollution primarily comes from burning fossil fuels by industries and vehicles, which release pollutants like sulfur oxides, nitrogen oxides, and particulate matter. Some pollution also occurs naturally from volcanoes, forest fires, and animal respiration. The health effects of air pollution include respiratory diseases. Control methods discussed include particulate filters and scrubbers, changing combustion processes, catalytic converters on vehicles, and biofilters to break down pollutants.
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Lead as pollutant
This document provides an outline for a paper on lead exposure and health risks. It begins with an introduction to lead's physical and chemical properties. It then discusses where lead is commonly found in the environment, such as in soil, water, paint, gasoline, and certain consumer products. The document outlines the various ways people can be exposed to lead and the health effects of lead poisoning, which can impact the brain, kidneys, and blood. It provides details on signs and symptoms of lead exposure and concludes by discussing the medical effects of lead on children and adults.
Mercury and heavy metal pollution
Heavy metals such as mercury, cadmium, and lead are naturally occurring but are also released from industrial and other human activities. They persist indefinitely in the environment and can accumulate in living organisms, posing health risks. Mercury is a liquid metal used historically in products like thermometers and batteries but now regulated. It evaporates easily and bioaccumulates as the toxic methylmercury in fish. Exposure can cause neurological, kidney, and developmental problems. While an essential element for life, mercury becomes toxic and dangerous at higher levels.
Heavy metal contamination of global environment
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Heavy metals are Globally distributed
pollutants
Heavy Metal Pollution
Heavy metal pollution from sources like industrial effluents and vehicle emissions is a growing global problem. Some key heavy metals that are toxic to humans include cadmium, lead, and mercury. Cadmium toxicity can cause vomiting, diarrhea and bone deformities. Lead exposure is linked to anemia, kidney problems, and changes in bone marrow. Mercury poisoning results in issues like diarrhea, breathing difficulties, and abdominal pain. Heavy metals are a threat because unlike some other pollutants, they do not break down in the environment.
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Heavy metals such as mercury, cadmium, chromium, and lead were discussed in the document. These metals can enter the environment from natural and human sources and persist indefinitely. While some heavy metals are essential in small amounts, higher concentrations can be toxic. Exposure to heavy metals can occur through food, water, air and cause health effects like organ damage and cancer. Current research studies analyzed heavy metal levels in foods, soils and plants in the Philippines and found levels exceeding safety limits.
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Air pollution is caused by both natural sources like dust storms and volcanic emissions, as well as human activities such as burning fossil fuels. The main primary pollutants from human activity are nitrogen oxides, sulfur oxides, carbon monoxide, particulate matter, and volatile organic compounds emitted from vehicles, power plants, industry, and other sources. These primary pollutants can then form secondary pollutants in the atmosphere through complex chemical reactions. Air pollution poses risks to human health through respiratory and cardiovascular issues and can also damage ecosystems and contribute to global warming through increased greenhouse gases.
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原版制作(Manitoba毕业证书)曼尼托巴大学毕业证学位证一模一样
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四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
RoHS stands for Restriction of Hazardous Substances, which is also known as the Directive 2002/95/EC. It includes the restrictions for the use of certain hazardous substances in electrical and electronic equipment. RoHS is a WEEE (Waste of Electrical and Electronic Equipment).
快速办理(Calabria毕业证书)卡拉布里亚大学毕业证在读证明一模一样
原件一模一样【微信：bwp0011】《(Calabria毕业证书)卡拉布里亚大学毕业证》【微信：bwp0011】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问微bwp0011
【主营项目】
一.毕业证【微bwp0011】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
Wildlife-AnIntroduction.pdf so that you know more about our environment
All about wildlife, if you are fond of animals and wildlife then do follow us for more content like this
Environment Conservation Rules 2023 (ECR)-2023.pptx
Bangladesh Environment Conservation Rules 2023 (ECR-2023).
Lessons from operationalizing integrated landscape approaches
Presented by James Reed at "9th Landscape Sustainability Science Forum" on 11 May 2024
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Presentation made for the Webinar Series on Biomimicry for sustainability on 1st June 2024 organized by Green Building Council Sri Lanka
Improving the viability of probiotics by encapsulation methods for developmen...
Improving the viability of probiotics by encapsulation methods for developmen...Open Access Research Paper
The popularity of functional foods among scientists and common people has been increasing day by day. Awareness and modernization make the consumer think better regarding food and nutrition. Now a day’s individual knows very well about the relation between food consumption and disease prevalence. Humans have a diversity of microbes in the gut that together form the gut microflora. Probiotics are the health-promoting live microbial cells improve host health through gut and brain connection and fighting against harmful bacteria. Bifidobacterium and Lactobacillus are the two bacterial genera which are considered to be probiotic. These good bacteria are facing challenges of viability. There are so many factors such as sensitivity to heat, pH, acidity, osmotic effect, mechanical shear, chemical components, freezing and storage time as well which affects the viability of probiotics in the dairy food matrix as well as in the gut. Multiple efforts have been done in the past and ongoing in present for these beneficial microbial population stability until their destination in the gut. One of a useful technique known as microencapsulation makes the probiotic effective in the diversified conditions and maintain these microbe’s community to the optimum level for achieving targeted benefits. Dairy products are found to be an ideal vehicle for probiotic incorporation. It has been seen that the encapsulated microbial cells show higher viability than the free cells in different processing and storage conditions as well as against bile salts in the gut. They make the food functional when incorporated, without affecting the product sensory characteristics.
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
在线办理(lboro毕业证书)拉夫堡大学毕业证学历证书一模一样
学校原件一模一样【微信：741003700 】《(lboro毕业证书)拉夫堡大学毕业证学历证书》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
原版制作(Newcastle毕业证书)纽卡斯尔大学毕业证在读证明一模一样
学校原件一模一样【微信：741003700 】《(Newcastle毕业证书)纽卡斯尔大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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RoHS stands for Restriction of Hazardous Substances, which is also known as t...
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
world-environment-day-2024-240601103559-14f4c0b4.pptx
world-environment-day-2024-240601103559-14f4c0b4.pptx
Wildlife-AnIntroduction.pdf so that you know more about our environment
Wildlife-AnIntroduction.pdf so that you know more about our environment
Environment Conservation Rules 2023 (ECR)-2023.pptx
Environment Conservation Rules 2023 (ECR)-2023.pptx
Lessons from operationalizing integrated landscape approaches
Lessons from operationalizing integrated landscape approaches
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Improving the viability of probiotics by encapsulation methods for developmen...
Improving the viability of probiotics by encapsulation methods for developmen...
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
BASIC CONCEPT OF ENVIRONMENT AND DIFFERENT CONSTITUTENET OF ENVIRONMENT
BASIC CONCEPT OF ENVIRONMENT AND DIFFERENT CONSTITUTENET OF ENVIRONMENT
Lead pollution
- 2. 6500 BC. - Lead discovered in Turkey, first mine. 500 BC-300 AD.- Roman lead smelting produces dangerous emissions. 100 BC. - Greek physicians give clinical description of lead poisoning. 1854 - Tetraethyl lead discovered by German chemist. 1921 - Midgley discovers that tetraethyl lead curbs engine knock. Half-life Of Lead - 25 DAYS:BLOOD. 40 DAYS:SOFT TISSUE. 20 YEARS:BONE Lead can be inhaled. Tetraethyl lead can be absorbed via skin. Cigarettes are the major source of Lead.
- 3. GASOLINE FOOD SOIL WATER WORK EXPOSURE
- 5. Lack of Concentration Miscarriage & Infertility Nausea Dyspepsia Anaemia Hypertension Fatigue
- 6. DOs Use unleaded petrol. Safely dispose Lead batteries. Take more Ca & Fe in diet. Avoid smoking. Wear gloves while soldering. DON’Ts
- 7. Acknowledgement We would like to thank our teachers for allowing us to make this project. It helped us to acquire a lot of information of the topic, without which we would have remained in the dark about such serious threats to ourselves and our environment.
- 8. Bibliography The following sites and books were helpful in the completion of the project:- NCERT Biology for Class XII www.google.com www.wikipedia.org