This document discusses various sources and effects of water pollution. It identifies key sources of water pollution as domestic/municipal, agricultural, industrial, oil spills, marine dumping, and burning fossil fuels. Water pollution can have serious negative impacts on human health, ecosystems, animals, and economies. It discusses specific pollutants like sewage, nutrients, pesticides, toxic chemicals, and their adverse effects. The document also outlines some methods to control water pollution, including implementing laws and regulations, international conventions, and practices like reducing chemical usage, organic farming, and reforestation.
Water pollution has many negative effects including the death of aquatic animals, disruption of food chains, spread of diseases to humans, and destruction of ecosystems. Pollutants are absorbed by small organisms and concentrate up the food chain, eventually poisoning animals and humans. Water pollution also has economic costs such as increased water purification costs and losses to fishing and tourism industries. Control measures include proper waste disposal, reducing chemical usage, water conservation, and government regulations on industry and sewage treatment.
Vijay's presentation discusses water resources and related topics. It notes that fresh water is a renewable yet decreasing resource. It describes the major uses of water as agricultural, industrial, household, and environmental. The document then discusses sources of fresh water such as surface water and groundwater. It also covers topics like floods, drought, conflicts over water, and more.
This presentation summarizes information about water pollution presented by MD Faridujaman. It defines water pollution as the contamination of the natural environment with harmful substances, often resulting from human activities. Various types of pollution are described, including microbiological, chemical, and those involving oxygen-depleting substances and nutrients. Causes of water pollution from domestic, industrial and agricultural waste are outlined. The effects on both humans and wildlife are explained. Suggestions for preventing further water pollution are provided, such as being mindful of household chemicals and reducing soil erosion. The presentation concludes by emphasizing the importance of conserving this vital natural resource.
Water pollution occurs when pollutants are discharged directly or indirectly into water bodies from various sources such as factories, sewage treatment plants, agricultural and livestock farms, and urban settlements. Major causes of water pollution include improper disposal of sewage and industrial waste, oil spills, seepage from landfills, excess fertilizers and pesticides, and littering. Water pollution has wide-ranging negative impacts like endangering plant and animal species, causing eutrophication, contaminating food sources, and affecting human health. It also leads to significant economic losses for industries like fishing and tourism.
This document discusses various types of water pollutants including pathogens from sewage, organic waste from industrial and agricultural activities, chemical pollutants from industry and mining, excess sediments, and excess nutrients that can cause eutrophication. It provides examples of point source pollutants from factories and non-point source pollutants from agricultural runoff and urban areas. Prevention methods include reducing water usage, properly disposing of household waste, and minimizing the use of fertilizers and pesticides.
This document discusses various types of water pollutants including pathogens from sewage, organic waste from industrial and agricultural runoff, chemical pollutants from industry and mining, excess sediments, and excess nutrients that can cause eutrophication. It provides examples of point source pollution from factories and non-point source pollution from agricultural runoff and urban areas. Prevention methods include reducing water usage, proper disposal of household chemicals, minimizing fertilizer and pesticide use, and cleaning up litter.
Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging either to individual species and populations, but also to the natural biological communities.
This document discusses various types and causes of water pollution. It describes toxic, organic, and thermal pollution and their effects on aquatic ecosystems. Various point and nonpoint sources of pollution are outlined, including pollution from farming, industry, and daily human practices. Signs of polluted water and methods for addressing pollution through education, laws, and economics are also summarized.
Water pollution has many negative effects including the death of aquatic animals, disruption of food chains, spread of diseases to humans, and destruction of ecosystems. Pollutants are absorbed by small organisms and concentrate up the food chain, eventually poisoning animals and humans. Water pollution also has economic costs such as increased water purification costs and losses to fishing and tourism industries. Control measures include proper waste disposal, reducing chemical usage, water conservation, and government regulations on industry and sewage treatment.
Vijay's presentation discusses water resources and related topics. It notes that fresh water is a renewable yet decreasing resource. It describes the major uses of water as agricultural, industrial, household, and environmental. The document then discusses sources of fresh water such as surface water and groundwater. It also covers topics like floods, drought, conflicts over water, and more.
This presentation summarizes information about water pollution presented by MD Faridujaman. It defines water pollution as the contamination of the natural environment with harmful substances, often resulting from human activities. Various types of pollution are described, including microbiological, chemical, and those involving oxygen-depleting substances and nutrients. Causes of water pollution from domestic, industrial and agricultural waste are outlined. The effects on both humans and wildlife are explained. Suggestions for preventing further water pollution are provided, such as being mindful of household chemicals and reducing soil erosion. The presentation concludes by emphasizing the importance of conserving this vital natural resource.
Water pollution occurs when pollutants are discharged directly or indirectly into water bodies from various sources such as factories, sewage treatment plants, agricultural and livestock farms, and urban settlements. Major causes of water pollution include improper disposal of sewage and industrial waste, oil spills, seepage from landfills, excess fertilizers and pesticides, and littering. Water pollution has wide-ranging negative impacts like endangering plant and animal species, causing eutrophication, contaminating food sources, and affecting human health. It also leads to significant economic losses for industries like fishing and tourism.
This document discusses various types of water pollutants including pathogens from sewage, organic waste from industrial and agricultural activities, chemical pollutants from industry and mining, excess sediments, and excess nutrients that can cause eutrophication. It provides examples of point source pollutants from factories and non-point source pollutants from agricultural runoff and urban areas. Prevention methods include reducing water usage, properly disposing of household waste, and minimizing the use of fertilizers and pesticides.
This document discusses various types of water pollutants including pathogens from sewage, organic waste from industrial and agricultural runoff, chemical pollutants from industry and mining, excess sediments, and excess nutrients that can cause eutrophication. It provides examples of point source pollution from factories and non-point source pollution from agricultural runoff and urban areas. Prevention methods include reducing water usage, proper disposal of household chemicals, minimizing fertilizer and pesticide use, and cleaning up litter.
Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging either to individual species and populations, but also to the natural biological communities.
This document discusses various types and causes of water pollution. It describes toxic, organic, and thermal pollution and their effects on aquatic ecosystems. Various point and nonpoint sources of pollution are outlined, including pollution from farming, industry, and daily human practices. Signs of polluted water and methods for addressing pollution through education, laws, and economics are also summarized.
The document discusses different types of pollution including air, water, and soil pollution. It defines pollutants as harmful substances that make environments unfit for living. Specific pollutants are identified such as plastic dumping in oceans, smoke from vehicles and factories, waste from industrial activities, and chemicals from pesticides, batteries, and other sources. The effects of pollutants like grease in water turning it black and dirty are described. Students are given assignments to identify types of pollutants and illustrate different categories through a collage.
This document discusses eutrophication of water bodies. It defines eutrophication as excessive plant growth caused by high nutrient levels. It classifies bodies of water based on their nutrient levels from oligotrophic to hypertrophic. The main causes of eutrophication are nutrient runoff from agriculture and sewage. This can lead to algal blooms, low oxygen, changes in ecosystems, and health impacts. Monitoring nutrient levels and preventing nutrient sources can help manage eutrophication.
1) Climate change directly and indirectly affects land degradation through changes in temperature, precipitation, and soil properties. 2) Both climate change and human activities like intensive agriculture and fossil fuel use contribute to increased greenhouse gas emissions and rising global temperatures. 3) Addressing land degradation and climate change requires international cooperation to reduce emissions, as well as measures to help local communities adapt through sustainable land management practices.
This document discusses water pollution, its sources, effects, and prevention. It outlines various sources of water pollution including natural sources like erosion and volcanic activity, as well as human sources such as domestic, industrial, agricultural, and oil pollution. Domestic pollution comes from sewage, food waste, and chemicals. Industrial pollution includes inorganic waste from factories. Agricultural pollution is caused by excess fertilizers and pesticides. Oil pollution results from offshore drilling and tanker operations. Water pollution leads to aquatic animal deaths, disrupted ecosystems, and waterborne diseases. Prevention methods include reducing water usage, proper waste disposal, and public education. Strict adherence to water laws and changing household habits can help control pollution.
The impact of agriculture on the environment is often discussed merely in terms of pollution due to
leaching of agrochemicals or to erosion of contaminated soil particles. As a matter of fact, however, more
important environmental problems are due to the imbalance or the lack of closure of nutrient cycles and to the
wrong choices made to this purpose. The natural role of agriculture is the re-utilization of wastes and effluents, no
more congenial today for the farmers themselves. It is necessary therefore to encourage farmers to play their
environmental role. The definition of sustainable agriculture does not prescind from this role, and it is possible to
stress the concept that agriculture, by playing this role, becomes the ground for a sustainable society.
Eutrophication is the process by which a body of water becomes overly enriched with minerals and nutrients which induces excessive growth of algae. This document discusses the history, causes, process, sources, effects and prevention/control of eutrophication. It provides Lake Erie as an example where phosphorus runoff from sewage and agriculture caused severe algal blooms and hypoxia, but $7.5 billion in controls have helped reduce phosphorus levels and improve conditions. Prevention focuses on identifying and controlling nutrient sources, minimizing nonpoint pollution through riparian buffers and laws, and nitrogen testing to optimize fertilizer use. Control methods within lakes include reducing nutrient release from sediments through dredging, harvesting, and aeration.
The document summarizes various topics related to water pollution including:
- Types of water pollutants such as bacteria, chemicals, and excess heat.
- Sources of water pollution including agriculture, industry, mining, urban and suburban development.
- Effects of pollution on surface water bodies like streams, lakes, rivers and oceans. Groundwater is also impacted by pollution.
- Technological solutions and regulations that have helped reduce water pollution in some areas but it remains a serious problem, especially in developing nations. Prevention is key to protecting water resources.
An ecosystem consists of the biological community and abiotic environment in a specific locale. There are three major classes of ecosystems: freshwater, terrestrial, and ocean. Terrestrial ecosystems include seven major types that vary based on location and precipitation levels, such as tropical rainforests, savannas, deserts, temperate grasslands, deciduous forests, coniferous forests, and tundra. Oceans cover most of the Earth and contain shallow ocean waters, deep ocean waters, and deep ocean surface ecosystems.
This document discusses water pollution from an assignment submitted by Sidhartha Borah. It begins with background on water and its importance for life. It then discusses various sources of water pollution including industrial facilities, mines, sewage, agriculture, and more. The major types of water pollution covered are nutrient pollution, surface water pollution, oxygen depletion, and groundwater pollution. Specific pollutants from industrial, agricultural, and domestic activities are also outlined like metals, pesticides, bacteria and their health impacts.
The document discusses various topics related to water pollution including:
1. It describes different types of water pollutants like industrial effluents, sewage, agricultural runoff, and their sources.
2. It discusses the effects of pollution including eutrophication, lack of access to clean water leading to diseases, and plastic waste killing marine life.
3. Solutions to water pollution problems require treating industrial and domestic waste before discharge into water bodies.
Nearly all (97.5%) of the water on Earth is salt water found in oceans and seas. Only 2.5% of the water on Earth is fresh water, with over two-thirds of that being frozen in ice caps and glaciers. Less than 1% of the world's total water is accessible for direct human use from sources like lakes, rivers, and groundwater. Freshwater biomes, which cover about 20% of the Earth's surface, consist of bodies of fresh water like lakes, ponds, streams, and rivers that support various fish and plant life.
This document discusses water pollution including its types and effects. It defines water pollution as the contamination of water bodies by pollutants directly or indirectly discharged without treatment. The types of water pollution covered are surface, ground, microbiological, nutrient, and chemical. Effects include visible trash and waste, contamination of drinking water, disease transmission, excess algae growth displacing oxygen, and pollution from industrial chemicals and metals harming wildlife. Prevention methods include organized clean ups and changing habits to protect this important resource.
Environmental degradation occurs when resource use exceeds replenishment rates. Common resources like air and oceans face overuse without clear ownership. This "tragedy of the commons" depletes resources. Key drivers of degradation are population growth, poverty, urbanization, industry and inefficient markets. Degradation increases poverty by reducing resources the poor rely on. Water resources especially face challenges from overuse and pollution. Deforestation damages habitats, biodiversity and the climate. Urgent action is needed to conserve resources through better management, policies and individual behavior changes.
This document discusses water pollution. It defines water pollution and notes it is a global problem that varies in magnitude and type of pollutant between regions. Water pollutants are divided into 8 categories: sewage, disease-causing agents, sediment pollution, inorganic plant and algal nutrients, organic compounds, inorganic chemicals, radioactive substances, and thermal pollution. The document discusses the sources and impacts of each type of pollutant. The two main sources of water pollution are identified as point source pollution and nonpoint source pollution. Agriculture is a leading cause of nonpoint source water pollution worldwide.
soil pollution- definition, causes and measures controlRavindraBorade3
Soil pollution occurs when soils become contaminated by man-made chemicals or other alterations that negatively impact soil health and ecosystem viability. The document outlines key causes like industrial waste dumping, excessive fertilizer and pesticide use, and urban waste disposal. Effects include reduced soil fertility, crop yields, and water quality as pollutants spread. Control methods center around reducing chemical usage, properly disposing of wastes, encouraging plant growth, and implementing soil conservation practices.
Thermal pollution occurs when human activities, like power plants and factories, release excess heat into natural bodies of water, increasing their temperature. This disrupts local ecosystems by lowering dissolved oxygen levels and increasing toxins and metabolic rates in aquatic organisms. While cooling ponds, towers, and water recycling can help control thermal pollution, many industries still directly discharge waste heat without treatment, threatening biodiversity. Increased awareness of thermal pollution's impacts is needed to better address the issue.
Nonrenewable resources like coal, petroleum and natural gas cannot be replenished in a short period of time and will eventually run out. They were formed from ancient organisms millions of years ago. Renewable resources such as solar, wind, water and biomass can be naturally replenished in a short period of time through natural processes and are less finite than nonrenewable resources. The key difference between the two is whether the resource can be naturally replenished within human timescales.
Water resources are sources of water that are useful or potentially useful for various human uses. Virtually all human uses require fresh water, but only 3% of the water on Earth is fresh, and over two thirds of that is frozen in glaciers and ice caps. As the global population rises, water demand is exceeding supply in many areas, so there is increasing scarcity of accessible, clean fresh water. The major sources of fresh water are surface water, groundwater, and frozen water. Water is used for agricultural, industrial, household, and environmental purposes.
This document provides information about water management topics including sources of water, dams, canals, and irrigation methods. It discusses surface and underground water sources like ponds, lakes, rivers, wells, and tube wells. It describes different types of dams such as earth dams, rock-fill dams, gravity dams, and arch dams. Canals are described as the trenches that distribute water from reservoirs for irrigation. Various irrigation methods are outlined including flow irrigation, flood irrigation, storage irrigation, drip irrigation, and spray irrigation. Rainwater harvesting is introduced as a way to conserve water by collecting and filtering rainwater runoff and roof runoff to recharge underground water sources.
This document discusses sources and impacts of industrial water pollution. It notes that industrial waste from sources like steel, food, and chemical industries introduces pollutants like heavy metals, acids, alkalies, oils, and petrochemicals into water bodies. These pollutants can harm aquatic life and contaminate fish. The document also examines offshore oil drilling as a source of water pollution through drilling fluids, oil spills, and other discharges. Oil pollution damages marine organisms and can disrupt food chains. Proper environmental assessment and use of biodegradable drilling fluids can help control pollution from offshore drilling.
B.tech. i es unit 3 environment water pollutionRai University
This document discusses environmental pollution and water pollution. It defines various types of pollution including air, water, noise, land, and thermal pollution. It then discusses the causes of environmental pollution including natural causes like volcanic eruptions and man-made causes like rapid industrialization. The document focuses on water pollution, describing the sources, signs, and effects of polluted water. It discusses point sources and non-point sources of water pollution. It also describes the stages of sewage treatment including primary, secondary, tertiary treatment and disinfection.
Diploma. ii es unit 3.1 environment water pollutionRai University
This document discusses environmental pollution and water pollution. It defines various types of pollution and their causes. The key points are:
1. Water pollution can be from point sources like industrial effluents or non-point sources like agricultural runoff. Pollutants can be suspended solids, pathogens, or toxic chemicals.
2. The eutrophication process involves excess nutrients causing algal blooms, reduced oxygen, and plant and fish death. It progresses from growth of plants to lack of oxygen.
3. Sewage treatment involves primary settling to remove solids, secondary biological treatment using activated sludge to remove organics, and disinfection of the effluent before discharge.
The document discusses different types of pollution including air, water, and soil pollution. It defines pollutants as harmful substances that make environments unfit for living. Specific pollutants are identified such as plastic dumping in oceans, smoke from vehicles and factories, waste from industrial activities, and chemicals from pesticides, batteries, and other sources. The effects of pollutants like grease in water turning it black and dirty are described. Students are given assignments to identify types of pollutants and illustrate different categories through a collage.
This document discusses eutrophication of water bodies. It defines eutrophication as excessive plant growth caused by high nutrient levels. It classifies bodies of water based on their nutrient levels from oligotrophic to hypertrophic. The main causes of eutrophication are nutrient runoff from agriculture and sewage. This can lead to algal blooms, low oxygen, changes in ecosystems, and health impacts. Monitoring nutrient levels and preventing nutrient sources can help manage eutrophication.
1) Climate change directly and indirectly affects land degradation through changes in temperature, precipitation, and soil properties. 2) Both climate change and human activities like intensive agriculture and fossil fuel use contribute to increased greenhouse gas emissions and rising global temperatures. 3) Addressing land degradation and climate change requires international cooperation to reduce emissions, as well as measures to help local communities adapt through sustainable land management practices.
This document discusses water pollution, its sources, effects, and prevention. It outlines various sources of water pollution including natural sources like erosion and volcanic activity, as well as human sources such as domestic, industrial, agricultural, and oil pollution. Domestic pollution comes from sewage, food waste, and chemicals. Industrial pollution includes inorganic waste from factories. Agricultural pollution is caused by excess fertilizers and pesticides. Oil pollution results from offshore drilling and tanker operations. Water pollution leads to aquatic animal deaths, disrupted ecosystems, and waterborne diseases. Prevention methods include reducing water usage, proper waste disposal, and public education. Strict adherence to water laws and changing household habits can help control pollution.
The impact of agriculture on the environment is often discussed merely in terms of pollution due to
leaching of agrochemicals or to erosion of contaminated soil particles. As a matter of fact, however, more
important environmental problems are due to the imbalance or the lack of closure of nutrient cycles and to the
wrong choices made to this purpose. The natural role of agriculture is the re-utilization of wastes and effluents, no
more congenial today for the farmers themselves. It is necessary therefore to encourage farmers to play their
environmental role. The definition of sustainable agriculture does not prescind from this role, and it is possible to
stress the concept that agriculture, by playing this role, becomes the ground for a sustainable society.
Eutrophication is the process by which a body of water becomes overly enriched with minerals and nutrients which induces excessive growth of algae. This document discusses the history, causes, process, sources, effects and prevention/control of eutrophication. It provides Lake Erie as an example where phosphorus runoff from sewage and agriculture caused severe algal blooms and hypoxia, but $7.5 billion in controls have helped reduce phosphorus levels and improve conditions. Prevention focuses on identifying and controlling nutrient sources, minimizing nonpoint pollution through riparian buffers and laws, and nitrogen testing to optimize fertilizer use. Control methods within lakes include reducing nutrient release from sediments through dredging, harvesting, and aeration.
The document summarizes various topics related to water pollution including:
- Types of water pollutants such as bacteria, chemicals, and excess heat.
- Sources of water pollution including agriculture, industry, mining, urban and suburban development.
- Effects of pollution on surface water bodies like streams, lakes, rivers and oceans. Groundwater is also impacted by pollution.
- Technological solutions and regulations that have helped reduce water pollution in some areas but it remains a serious problem, especially in developing nations. Prevention is key to protecting water resources.
An ecosystem consists of the biological community and abiotic environment in a specific locale. There are three major classes of ecosystems: freshwater, terrestrial, and ocean. Terrestrial ecosystems include seven major types that vary based on location and precipitation levels, such as tropical rainforests, savannas, deserts, temperate grasslands, deciduous forests, coniferous forests, and tundra. Oceans cover most of the Earth and contain shallow ocean waters, deep ocean waters, and deep ocean surface ecosystems.
This document discusses water pollution from an assignment submitted by Sidhartha Borah. It begins with background on water and its importance for life. It then discusses various sources of water pollution including industrial facilities, mines, sewage, agriculture, and more. The major types of water pollution covered are nutrient pollution, surface water pollution, oxygen depletion, and groundwater pollution. Specific pollutants from industrial, agricultural, and domestic activities are also outlined like metals, pesticides, bacteria and their health impacts.
The document discusses various topics related to water pollution including:
1. It describes different types of water pollutants like industrial effluents, sewage, agricultural runoff, and their sources.
2. It discusses the effects of pollution including eutrophication, lack of access to clean water leading to diseases, and plastic waste killing marine life.
3. Solutions to water pollution problems require treating industrial and domestic waste before discharge into water bodies.
Nearly all (97.5%) of the water on Earth is salt water found in oceans and seas. Only 2.5% of the water on Earth is fresh water, with over two-thirds of that being frozen in ice caps and glaciers. Less than 1% of the world's total water is accessible for direct human use from sources like lakes, rivers, and groundwater. Freshwater biomes, which cover about 20% of the Earth's surface, consist of bodies of fresh water like lakes, ponds, streams, and rivers that support various fish and plant life.
This document discusses water pollution including its types and effects. It defines water pollution as the contamination of water bodies by pollutants directly or indirectly discharged without treatment. The types of water pollution covered are surface, ground, microbiological, nutrient, and chemical. Effects include visible trash and waste, contamination of drinking water, disease transmission, excess algae growth displacing oxygen, and pollution from industrial chemicals and metals harming wildlife. Prevention methods include organized clean ups and changing habits to protect this important resource.
Environmental degradation occurs when resource use exceeds replenishment rates. Common resources like air and oceans face overuse without clear ownership. This "tragedy of the commons" depletes resources. Key drivers of degradation are population growth, poverty, urbanization, industry and inefficient markets. Degradation increases poverty by reducing resources the poor rely on. Water resources especially face challenges from overuse and pollution. Deforestation damages habitats, biodiversity and the climate. Urgent action is needed to conserve resources through better management, policies and individual behavior changes.
This document discusses water pollution. It defines water pollution and notes it is a global problem that varies in magnitude and type of pollutant between regions. Water pollutants are divided into 8 categories: sewage, disease-causing agents, sediment pollution, inorganic plant and algal nutrients, organic compounds, inorganic chemicals, radioactive substances, and thermal pollution. The document discusses the sources and impacts of each type of pollutant. The two main sources of water pollution are identified as point source pollution and nonpoint source pollution. Agriculture is a leading cause of nonpoint source water pollution worldwide.
soil pollution- definition, causes and measures controlRavindraBorade3
Soil pollution occurs when soils become contaminated by man-made chemicals or other alterations that negatively impact soil health and ecosystem viability. The document outlines key causes like industrial waste dumping, excessive fertilizer and pesticide use, and urban waste disposal. Effects include reduced soil fertility, crop yields, and water quality as pollutants spread. Control methods center around reducing chemical usage, properly disposing of wastes, encouraging plant growth, and implementing soil conservation practices.
Thermal pollution occurs when human activities, like power plants and factories, release excess heat into natural bodies of water, increasing their temperature. This disrupts local ecosystems by lowering dissolved oxygen levels and increasing toxins and metabolic rates in aquatic organisms. While cooling ponds, towers, and water recycling can help control thermal pollution, many industries still directly discharge waste heat without treatment, threatening biodiversity. Increased awareness of thermal pollution's impacts is needed to better address the issue.
Nonrenewable resources like coal, petroleum and natural gas cannot be replenished in a short period of time and will eventually run out. They were formed from ancient organisms millions of years ago. Renewable resources such as solar, wind, water and biomass can be naturally replenished in a short period of time through natural processes and are less finite than nonrenewable resources. The key difference between the two is whether the resource can be naturally replenished within human timescales.
Water resources are sources of water that are useful or potentially useful for various human uses. Virtually all human uses require fresh water, but only 3% of the water on Earth is fresh, and over two thirds of that is frozen in glaciers and ice caps. As the global population rises, water demand is exceeding supply in many areas, so there is increasing scarcity of accessible, clean fresh water. The major sources of fresh water are surface water, groundwater, and frozen water. Water is used for agricultural, industrial, household, and environmental purposes.
This document provides information about water management topics including sources of water, dams, canals, and irrigation methods. It discusses surface and underground water sources like ponds, lakes, rivers, wells, and tube wells. It describes different types of dams such as earth dams, rock-fill dams, gravity dams, and arch dams. Canals are described as the trenches that distribute water from reservoirs for irrigation. Various irrigation methods are outlined including flow irrigation, flood irrigation, storage irrigation, drip irrigation, and spray irrigation. Rainwater harvesting is introduced as a way to conserve water by collecting and filtering rainwater runoff and roof runoff to recharge underground water sources.
This document discusses sources and impacts of industrial water pollution. It notes that industrial waste from sources like steel, food, and chemical industries introduces pollutants like heavy metals, acids, alkalies, oils, and petrochemicals into water bodies. These pollutants can harm aquatic life and contaminate fish. The document also examines offshore oil drilling as a source of water pollution through drilling fluids, oil spills, and other discharges. Oil pollution damages marine organisms and can disrupt food chains. Proper environmental assessment and use of biodegradable drilling fluids can help control pollution from offshore drilling.
B.tech. i es unit 3 environment water pollutionRai University
This document discusses environmental pollution and water pollution. It defines various types of pollution including air, water, noise, land, and thermal pollution. It then discusses the causes of environmental pollution including natural causes like volcanic eruptions and man-made causes like rapid industrialization. The document focuses on water pollution, describing the sources, signs, and effects of polluted water. It discusses point sources and non-point sources of water pollution. It also describes the stages of sewage treatment including primary, secondary, tertiary treatment and disinfection.
Diploma. ii es unit 3.1 environment water pollutionRai University
This document discusses environmental pollution and water pollution. It defines various types of pollution and their causes. The key points are:
1. Water pollution can be from point sources like industrial effluents or non-point sources like agricultural runoff. Pollutants can be suspended solids, pathogens, or toxic chemicals.
2. The eutrophication process involves excess nutrients causing algal blooms, reduced oxygen, and plant and fish death. It progresses from growth of plants to lack of oxygen.
3. Sewage treatment involves primary settling to remove solids, secondary biological treatment using activated sludge to remove organics, and disinfection of the effluent before discharge.
This document discusses various types of water pollution including microbiological, chemical, oxygen-depleting substances, and nutrients pollution. Water pollution occurs when untreated chemicals, sewage, and fertilizers are discharged into waterways. This contamination can seriously harm aquatic ecosystems and threaten human health. The main causes of water pollution are domestic, industrial, and agricultural waste as well as litter and nuclear waste. The effects of water pollution include dead plants and animals, damage to ecosystems, health issues like asthma, and potential climate impacts. Reducing water pollution requires careful management of household chemicals and proper disposal of waste.
Water pollution and its effect on animal healthSameer Sankhe
This ppt is related to Water pollution and It's effect on Animal health, preventive measures to be implemented, with information about various types of water pollution in the environment.
Water pollution occurs when chemicals, sewage, fertilizers and other pollutants are discharged into waterways without proper treatment. There are several types of water pollution including microbiological, chemical, oxygen-depleting substances, and nutrients. Water pollution has harmful effects on both aquatic ecosystems and human health, causing diseases, harming wildlife, and degrading water quality. To prevent water pollution, individuals and industries should properly dispose of wastes and use environmentally friendly practices.
Water pollution presentation for nerds like you who do not leave their room for hours.
You deserve divine punishment, ediot
We should eat more chicken. And more potato based snacks.
The document discusses various types of water pollution including point and nonpoint sources. It outlines major categories of water pollutants such as infectious agents, oxygen-demanding wastes, inorganic chemicals, organic chemicals, plant nutrients, sediment, radioactive materials, and heat. Specific pollutants like mercury, cadmium, and lead are examined in terms of their effects on human health. Causes of groundwater pollution and diseases caused by contaminated groundwater like fluorosis, methemoglobinemia, and black foot disease are also outlined.
This document discusses water pollution, its causes, types, and effects. It defines water pollution as the contamination of water bodies from human activities, which can degrade aquatic ecosystems. The main types of water pollution are chemical, groundwater, microbiological, nutrient, and oxygen-depletion pollution. The causes include sewage, waste dumping, industrial waste, oil spills, acid rain, and eutrophication. The effects are threats to human health like disease, death of aquatic life, disruption of food chains, and destruction of ecosystems. Treatment methods include industrial treatment, denitrification, ozone treatment, and septic tanks.
Water is essential for life on Earth and covers 70% of the planet's surface. It is used for agriculture, drinking, cooking, and industrial purposes. However, water pollution from sources such as sewage, agricultural runoff, and industrial waste threatens water quality and endangers human and environmental health. Major types of water pollution include contamination by pathogens, heavy metals, plastic waste, and excess nutrients that can cause algal blooms and eutrophication. Stricter regulations and sustainable practices are needed to curb pollution and protect this critical resource.
water pollution an overview and control and awarenesssharmachem
This document provides an overview of water pollution. It discusses that water pollution occurs when pollutants are discharged into water bodies without proper treatment. There are two main sources of water pollution: point sources which discharge directly into water bodies, and non-point sources which have no specific discharge location. The document also outlines several types of water pollution including nutrients pollution, surface water pollution, oxygen depleting pollution, and chemical pollution. Finally, the health and environmental effects of water pollution are examined.
Water pollution occurs when contaminants are introduced into bodies of water, making the water harmful to humans or ecosystems. The main sources of water pollution include natural sources like decaying organic matter, as well as agricultural runoff containing fertilizers and pesticides, industrial effluents, municipal sewage, and mining waste. Water pollution can have physical, chemical, and biological effects like reducing dissolved oxygen levels, increasing toxicity, promoting excess algal growth that harms aquatic life. Various pollutants that contaminate water bodies include organic compounds from sewage and synthetic sources, inorganic heavy metals, microorganisms, radioactive materials, and suspended solids. Proper management is needed to control pollution and protect water resources.
Water pollution from industrial chemicals, agricultural pesticides, litter, and oil spills kills aquatic life by poisoning or suffocating fish, birds, dolphins and other animals. Untreated industrial waste discharged into water bodies causes algal blooms, decreased oxygen levels, and massive mortality of fish and other organisms. Pollutants from industries like textiles, paper manufacturing, oil refining and metal production contain heavy metals, acids, cyanide and other toxic chemicals that affect the biological growth and reproduction of aquatic life and can lead to extinction of some species. Proper treatment of industrial effluents before discharge and use of low-waste technologies can reduce water pollution and its effects on aquatic ecosystems and human and animal health.
Water quality is affected by various pollutants from point and non-point sources. The key water quality parameters include physical, chemical, and biological characteristics. The major sources of water pollution are domestic and industrial sewage, agricultural runoff containing fertilizers and pesticides, and microbial contaminants from animal and human waste. Poor water quality can cause various water-borne diseases and negatively impact human health. Stringent treatment is required to ensure water is safe for drinking and other daily uses.
This document discusses water pollution, including its causes, types, sources, effects, and solutions. It defines water pollution as the contamination of water bodies by direct or indirect discharge of pollutants without proper treatment. The main types are surface water and groundwater pollution. Pollution sources can be direct, such as from factories and waste treatment plants, or indirect, such as from soil runoff. Water pollution harms ecosystems, animals, and human health. Solutions include improving agricultural practices, sewage treatment, and educating the public.
I AM HAFIZ MUHAMMAD WASEEM from mailsi vehari
BSc from science college Multan
MSC university of education Lahore
i love Pakistan and my teachers and my parents
This document defines and discusses various types and causes of water pollution. It begins by defining pollution and water pollution. The main causes of water pollution are identified as sewage, industrial effluents, synthetic detergents, agrochemicals, oil and waste heat. Specific point and non-point sources of pollution are outlined. The effects of water pollution on health and aquatic life are also summarized. Finally, some measures to control water pollution like treatment of waste water and restoration of polluted water bodies are mentioned.
Water and noise pollution pose threats to human and environmental health. Water pollution occurs when harmful substances are directly or indirectly discharged into bodies of water. It has various sources like industrial and agricultural runoff. This causes issues like algal blooms and eutrophication that deplete oxygen and endanger aquatic life. Noise pollution is unwanted sound that disturbs humans and wildlife. Major sources are transportation, construction, and industrial activities. Both can negatively impact health, concentration, and hearing if not properly controlled through laws, public awareness, and green infrastructure.
Water pollution occurs when water bodies become contaminated by harmful substances, making the water unsafe or difficult for aquatic organisms to survive. There are many types and sources of water pollution. Types include nutrients pollution from wastewater and fertilizers, surface water pollution from hazardous substances, and chemical pollution from industries. Sources are point sources like sewage pipes and non-point sources like agricultural runoff. Effects of water pollution include reproductive harm to wildlife, increased algae growth and reduced oxygen in water, health issues for humans, and harm to ecosystems from temperature changes or toxic chemicals accumulating in food chains.
Pesticide law defines a “pesticide” (with certain minor exceptions) as: Any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest. Any substance or mixture of substances intended for use as a plant regulator, defoliant, or desiccant.
Environmental management refers to a systematic approach to reducing negative environmental impacts and conserving resources like water, energy, and materials. Achieving national sustainable development goals through environmental management strategies can be difficult for several reasons. First, there is a lack of education and awareness about sustainability issues among the general public in many countries. Second, developing countries often face financial constraints that limit their ability to plan and implement sustainable practices. Third, corruption can reduce funds for sustainability projects. Achieving truly sustainable development requires strategies that consider many interconnected factors, are adaptable to changes, and have some redundancy to withstand disruptions.
Human impacts on pristine environment in the knuckles mountain fore...Nimashi Herath
The Knuckles Mountain Range lies in central Sri Lanka, in the Districts of Matale and Kandy. The range takes its name from a series of recumbent folds and peaks in the west of the massif which resemble the knuckles of clenched fist when viewed from certain locations in the Kandy District.
Land use planning is important for achieving life on earth by promoting sustainable development and management of natural resources. Without proper land use planning, soil degradation affects over 1.5 billion people globally and each year 12 million hectares of land are lost to drought, desertification, and deforestation, endangering wildlife. This highlights the need to protect, restore, and sustainably manage forests and combat desertification through awareness programs, replantation, and methods to stop soil erosion, in order to reverse land degradation and halt biodiversity loss for current and future generations.
Salt marshes are coastal wetlands flooded by salt water brought in by tides. They contain deep mud and peat made of decomposing plant matter. Salt marshes worldwide provide habitat for over 75% of fisheries species and protect shorelines from erosion. The salt marshes in Mannar district contain various plant species that have adapted to the saline soil conditions and fluctuating tides. Common plant species observed include Suaeda maritima, Suaeda monica, and Holosaciaindicum. Salt marshes are productive ecosystems that filter water and absorb flood waters, while also providing habitat for crabs, fish, and birds. However, they face threats from coastal development, erosion, and potential impacts of
Epcon is One of the World's leading Manufacturing Companies.EpconLP
Epcon is One of the World's leading Manufacturing Companies. With over 4000 installations worldwide, EPCON has been pioneering new techniques since 1977 that have become industry standards now. Founded in 1977, Epcon has grown from a one-man operation to a global leader in developing and manufacturing innovative air pollution control technology and industrial heating equipment.
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
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.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
ENVIRONMENT~ Renewable Energy Sources and their future prospects.tiwarimanvi3129
This presentation is for us to know that how our Environment need Attention for protection of our natural resources which are depleted day by day that's why we need to take time and shift our attention to renewable energy sources instead of non-renewable sources which are better and Eco-friendly for our environment. these renewable energy sources are so helpful for our planet and for every living organism which depends on environment.
Microbial characterisation and identification, and potability of River Kuywa ...Open Access Research Paper
Water contamination is one of the major causes of water borne diseases worldwide. In Kenya, approximately 43% of people lack access to potable water due to human contamination. River Kuywa water is currently experiencing contamination due to human activities. Its water is widely used for domestic, agricultural, industrial and recreational purposes. This study aimed at characterizing bacteria and fungi in river Kuywa water. Water samples were randomly collected from four sites of the river: site A (Matisi), site B (Ngwelo), site C (Nzoia water pump) and site D (Chalicha), during the dry season (January-March 2018) and wet season (April-July 2018) and were transported to Maseno University Microbiology and plant pathology laboratory for analysis. The characterization and identification of bacteria and fungi were carried out using standard microbiological techniques. Nine bacterial genera and three fungi were identified from Kuywa river water. Clostridium spp., Staphylococcus spp., Enterobacter spp., Streptococcus spp., E. coli, Klebsiella spp., Shigella spp., Proteus spp. and Salmonella spp. Fungi were Fusarium oxysporum, Aspergillus flavus complex and Penicillium species. Wet season recorded highest bacterial and fungal counts (6.61-7.66 and 3.83-6.75cfu/ml) respectively. The results indicated that the river Kuywa water is polluted and therefore unsafe for human consumption before treatment. It is therefore recommended that the communities to ensure that they boil water especially for drinking.
Presented by The Global Peatlands Assessment: Mapping, Policy, and Action at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
different Modes of Insect Plant InteractionArchita Das
different modes of interaction between insects and plants including mutualism, commensalism, antagonism, Pairwise and diffuse coevolution, Plant defenses, how coevolution started
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...Joshua Orris
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.
3. What is water pollution ?
Any chemical, biological or
physical change in water
quality that has a harmful
effect on living organisms
or makes water unsuitable
for desired usage
5. Water statistics
• According to WHO details:
3.4 million premature deaths
each year from waterborne
diseases
1.9 million from diarrhea
U.S 1.5 million illnesses
• 600 million people – nearly half
india’s population – face acute
water shortage, with also to
200,000 dying each year from
polluted water.
6. Water Pollutants
• Water pollutant is a substance that pollutes water
• Dirt
• Bacteria
• Nutrients
• Heavy metals
• Acidity caused by industrial discharges
• Chemical water
• Fertilizers from agricultural use
• Silt from construction sites, burn operation etc.
• Chemical from cosmetics products
7. Types of water pollution
• Nutrients Pollution
• process where too many nutrients, mainly nitrogen and phosphorus, are
added to water bodies and can act like fertilizer, causing excessive growth
of algae
• Primary cause of eutrophication
• Too much algae will also use up all the oxygen in the water, and other
water organisms in the water will die out of oxygen starvation.
• Surface water pollution
• Hazardous substances coming into contact with this surface water,
dissolving or mixing physically with the water
• Most visible form of pollution
• Found on the earth's surface, like rivers, lakes, lagoons and oceans
• Ground water pollution
• Found in soil or under rock structure or aquifers
• Usually caused by highly toxic chemicals and pesticides from farming that
leak through the ground to contaminate the wells and aquifers below the
surface
8. • Suspended Matter pollution
• The suspended particles eventually settle and cause a thick silt at the
bottom
• Biodegradable substances are often suspended in water and can cause
problems by increasing the amount of anaerobic microorganisms
present
• This is harmful to marine life that lives on the floor of rivers or lakes
• Chemical Water Pollution
• Many industries and farmers work with chemicals that end up in water
• These are poisonous to many forms of aquatic life and may slow their
development, make them infertile and kill them
• Oil Spillage
• Oil spills usually have only a localized effect on wildlife but can spread
for miles
• The oil can cause the death to many fish and get stuck to the feathers of
seabirds causing them to lose their ability to fly.
9. • Oxygen Depleting
• Microorganisms that in water and feeds on biodegradable substances
• It encourages more microorganism growth, and they use up more
oxygen in the water
• If oxygen is depleted, aerobic organisms die, and anaerobic organisms
grow more to produce harmful toxins such as ammonia and sulfides
• Microbiological pollution
• Usually a natural form of water pollution caused by microorganisms
• Microorganisms such as: Bacteria, Viruses, Protozoa
• Serious diseases such as cholera come from microorganisms that live
in water
10. Categories of pollution sources
• Point source water pollutants: pollutants that are discharged
from specific/ known locations
• Non point source pollutants: water pollutants that are discharged over a
large area
18. 6. Burning of fossil fuels
Adapted from https://research.cbc.osu.edu/reel/research-modules/environmental-chemistry/methods/ph
19. Effects of Water Pollution
• Water pollution poses serious threats to the environment and organisms!
• The effects can be catastrophic which depends on
• The type of pollutant
• Concentrations of the pollutants
• Where they are polluted
20. Water pollution has adverse effects on
1. Human Health
• Causes Death
• Cause water-borne and other diseases
2. Ecosystems
• Nutrient pollution causing eutrophication
• Depletion of oxygen levels in water bodies
• Disruption of food chains
3. Animals
• Death of animals and other toxic effects
4. Economy
• Huge cost for water purification
• Economic losses for industries like fishing
21. Effects of water pollutants
Effect Of Sewage And BOD Problem:
1. Organic wastes increase the demand in oxygen creating
low oxygen conditions
2. Bacterial population increases with active growth of
sewage fungus
3. Protozoa species that feed on bacteria increases
4. The oxygen depletion causes a decrease of algae and clean
water fauna
5. Fish being sensitive to DO concentration are eliminated
through mass fish deaths
6. Still water bodies have increased developments of algal
blooms
22. Effects of Pesticides, Detergents and Synthetic
Fertilizers:
1. Pesticides
• Accumulate in the tissues of aquatic organisms through
bio-concentration and biological magnification
• Adversely affect their metabolic processes including
reproduction
• Affect many non-target organisms
1. Physiological effects
• Death
• Sterility
• Other dysfunctions
2. Behavioural effects
3. Pathological effects
23. 2. Detergents
• Increase in the phosphorus in sewage effluents
• Extensive growth of algae
• Depletes the DO content of water
• Disrupts the natural food chains
3. Fertilizers
• Nitrates accumulate in water
• Nitrates are reduced to toxic nitrates by intestinal bacteria in animals
• Nitrates can cause a serious disease
• Which can damage respiratory and vascular systems and even cause
suffocation
24. Effects of Hazardous Pollutants (Toxic Metals and
Other Chemicals):
1. Inorganic pollutants include As and the metals Cd,
Hg, Pb, Ni, Zn and Cu
• kill or sicken fish and other aquatic animals
2. Organic pollutants like benzene, toluene, chloroform, formaldehyde and
many pesticides such as Parathion
• Associated with leukemia and aplastic anaemia
• Cause irritations in eyes, skin and lungs
• Cause headache and dizziness
• Carcinogenic
• Cause kidney and liver damage
25. Effects of Pathogenic Micro-organisms:
1. Micro-organisms (bacteria, viruses and protozoa) can cause
infections.
2. Infectious micro- organisms in drinking water cause waterborne
diseases
3. Deaths related to contaminated drinking water
26. Effects of oil spills (Marine Pollution):
1. Kill or adversely affect fish,
phytoplankton and zooplankton,
and birds and mammals
2. Kill or reduce populations of
organisms living in coastal sands
and rocks
3. Kill the insects and worms that
serves as food to many birds and
other animals
4. When oil moves into coastal
wetlands, it kills fish, shrimps, birds
and other animals
5. Foul beaches used for swimming
27. Effects of Acids Deposition:
1. Lowers pH of water
2. Kills all the organisms in these water
bodies
3. Reduced rate of photosynthesis and
growth and increased sensitivity to
drought and disease in green plants
4. Nutrients like nitrates may be leached from the soil by acid runoff
waters
5. The activity of nitrogen-fixing bacteria is inhibited, thus reducing soil
fertility
28. Effects of Thermal Pollution:
1. Mortality of fish and other desirable organisms
2. Causes interference in spawning and reproduction of fish
3. Most freshwater fauna populations decline with rising
temperatures
4. Green algae and diatoms are reduced in numbers
5. There is increased growth of blue-green algae and sewage fungus
6. Reduction in DO content of water
7. Effects thermal pollution causes increased vulnerability to disease
and permits invasion of organisms that are tolerant to warm water
and disturb ecological balance
29. Effect of Eutrophication:
1. Low levels of DO
2. Lager diatoms and filamentous algae clog
water treatment plant filters
3. Toxic algae have sometimes been associated
with eutrophication in coastal regions causes
“red tide”
4. Paralytic shellfish poisoning
5. Excessive growths of rooted aquatic
macrophytes interfere with navigation,
aeration and channel-carrying capacity
6. The algal blooms impair water quality by giving
it a bad taste and odour
31. • Keep out oils, fat, or grease from the sink.
• Abstain from flushing contaminated liquids, pills, drugs,
or medications down the drain.
• Ensure minimal use of bleach or detergents.
• Install water-efficient household appliances.
• Avoid direct dumping into water systems.
• Insist on using environmentally safe products.
• Skip the use of plastics.
Domestic / Municipal
32. • Use renewable resources rather than non-renewable resources
• Reduce the use of herbicides, pesticides, and fertilizers.
• Practice organic farming.
• Proper effluent treatment and management.
• Dispose motor oil, batteries or antifreeze at specially assigned
collection points.
Agricultural/ Industrial
33. Implementationof laws and regulations.
• National Environmental Act
Restriction regulation and control of pollution of the inland waters.
(https://followmyvote.com/voter-id-laws-show-little-movement/)
34. International Conventions.
• Convention on the Protection and Use of Trans boundary
Watercourses and International Lakes.
• London Convention on the Prevention of Marine Pollution by
Dumping of Wastes and Other Matter.
• MARPOL 73/78
• International Convention for the Prevention of Pollution of the Sea
by Oil
35. Reforestation or practice planting trees.
(https://www.aspiretrainingteam.co.uk/wp-content/uploads/2018/11/trees.jpg)
36. References
• Dojlido, J. and Best, G.A., 1993. Chemistry of water and water pollution.
Ellis Horwood Limited.
• Cerejeira, M.J., Viana, P., Batista, S., Pereira, T., Silva, E., Valério, M.J.,
Silva, A., Ferreira, M. and Silva-Fernandes, A.M., 2003. Pesticides in
Portuguese surface and ground waters. Water research, 37(5), pp.1055-
1063
• Sasakova, N., Gregova, G., Takacova, D., Mojzisova, J., Papajova, I.,
Venglovsky, J., Szaboova, T. and Kovacova, S., 2018. Pollution of surface
and ground water by sources related to agricultural activities. Frontiers
in Sustainable Food Systems, 2, p.42
This is a map of the world. Arrocoding to the this map 138,000 people are died by disasters and conflict.but due to the unsafe water,780 000 people are died. So un safe water kills more people than disasters and conflict. So water pollution is major environmental issue of the world
Usually developing countires death % is higher than the developed countires. Bcz they have high population,poor sanitary facilities and economic
According to these water pollutants ,have many number of water pollution types
There are many types of water pollution
because water comes from many sources. Here are we describe a few types of water pollution ...
Surface water- can be called surface water pollution
Some pollutants are not dissolve in water bodies. They ara suspended to the bottom of the water.they biodegrate obtain oxygen of the water body So this process can be affected to the other aquatic organinsms and they will be died
Bp oil spill in 2010 is good expl . in here,more than 1000 ,animals are dead
Many types of microorganisms live in water and cause fish, land animals and humans to become ill. Microorganisms such as:
Bacteria…….
.due to the microbiological pollutin cn be appeared …….
These diseases usually affect the health of people in poorer countries, as they do not have the facilities to treat polluted water.
There are two Categories of pollution sources
Point source and Non point source
farms
There are may ways water pollution can happen .Among them major sources of water pollution are
this includes sewage water from homes or businesses, which contain sanitary sewage, variety of dissolved and suspended pollutants ,disease causing microbes and chemicals contained in washing
household cleaning agents, detergents, as well as dumping of garbage into waterways are also considered AS Pollutants sources.
More than 80 percent of the world’s wastewater flows back into the environment without being treated , according to the United Nations; in some least-developed countries, the figure tops 95 percent.
Agriculture is by far the leading cause of water pollution around the world, with pollutants such as sediment eroded from agricultural lands, fertilizers, pesticides, bacteria from livestock, food processing waste and excess salts from soils of irrigated crop lands all contributing to water pollution.
agricultural sector the biggest consumer of global freshwater resources, with farming and livestock production using about 70 percent of the earth’s surface water supplies,
Every time it rains, fertilizers, pesticides, and animal waste from farms and livestock operations wash nutrients and pathogens into our waterways.
Nutrient pollution, caused by excess nitrogen and phosphorus in water or air, is the number-one threat to water quality worldwide
This is the second largest cause of water pollution with pollutants such as coal ash from power plants, (thermal pollution)toxic organic and inorganic chemical waste, oil and natural gas during drilling contributing to water pollution.
They contain pollutants such as lead, mercury, sulphur, asbestos, nitrates and many other harmful chemicals. Many industries do not have proper waste management system and drain the waste in the fresh water which goes into rivers, canals and later in to sea
Mining activities emit several metal waste and sulphides from the rocks and is harmful for the water
Oil tankers and offshore petroleum refineries cause oil leakage polluting water.
Accidental oil leakage also add to water pollution
Ship accidents and accidental oil spillages at the sea can be very damaging to marine environment.
Marine dumping is one more major impact which pollutes sea
The garbage produce by each household is collected and deposited into the sea in some countries
A major contributor of increasing acidity in freshwater ecosystems is acid rain.
Pollutants such as sulfur dioxide and nitrogen oxides (NOx) are released from human sources such as automobile exhaust, factory smoke, and any other burning of fossil fuels
These pollutants can form airborne acids (nitric and sulfuric acid) that dissolve in water vapor and make it acidic
When this water vapor condenses into rain, it falls into rivers, lakes and streams introducing hydrogen ions thus decreasing the pH.
Water pollution may pose serious threat to the environment as well as lives.
The effects can be catastrophic, depending on the kind of chemicals, concentrations of the pollutants and where there are polluted
Organic wastes increase the demand in oxygen creating low oxygen conditions
Bacterial population rapidly increases with active growth of sewage fungus
Protozoa species that feed on bacteria increase in numbers
The oxygen depletion causes a decrease of algae and clean water fauna
Fish being sensitive to DO concentration are often eliminated through mass fish deaths
Lentic water bodies have increased developments of algal blooms
Acid rain or acid deposition, which lowers the pH of lakes and streams to 4 or 5, adversely affects fish, algae and other sensitive organisms
Causes interference in spawning and reproduction of fish since all fish require an optimum temperature for breeding
Large diurnal variations in DO can result in low levels of DO at night, which in turn can result in the death of desirable fish species
an agreement between countries covering particular matters
to improve national attempts and measures for protection and management of transboundary surface waters and groundwaters
. The objective of this convention is to preserve the marine environment in an attempt to completely eliminate pollution by oil and other harmful substances and to minimize accidental spillage of such substances
Planting trees reduce the speed of surface water runoff and as such, lessens erosion and prevents toxic substances and chemicals from washing into water systems
Water is life”S matter and matrix, there is no life with out water .