Water Pollution Is the Contamination of Water Bodies
Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater).
Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.
Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds.
Contents
[hide]
• 1 Introduction
• 2 Water pollution categories o 2.1 Point source pollution o 2.2 Non–point source pollution
• 3 Groundwater pollution
• 4 Causes of water pollution o 4.1 Pathogens o 4.2 Chemical and other contaminants o 4.3 Thermal pollution
• 5 Transport and chemical reactions of water pollutants
• 6 Measurement of water pollution o 6.1 Sampling o 6.2 Physical testing o 6.3 Chemical testing o 6.4 Biological testing
• 7 Control of water pollution o 7.1 Domestic sewage o 7.2 Industrial wastewater o 7.3 Agricultural wastewater o 7.4 Construction site stormwater o 7.5 Urban runoff (stormwater)
• 8 See also
• 9 References
• 10 External links
[edit] Introduction
Millions depend on the polluted Ganges river.
Water pollution is a major problem in the global context. It has been suggested that it is the leading worldwide cause of deaths and diseases,[1][2] and that it accounts for the deaths of more than 14,000 people daily.[2] An estimated 700 million Indians have no access to a proper toilet, and 1,000 Indian children die of diarrheal sickness every day.[3] Some 90% of China's cities suffer from some degree of water pollution,[4] and nearly 500 million people lack access to safe drinking water.[5] In addition to the acute problems of water pollution in developing countries, industrialized countries continue to struggle with pollution problems as well. In the most recent national report on water quality in the United States, 45 percent of assessed stream miles, 47 percent of
Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.
Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds.
Contents
[hide]
• 1 Introduction
• 2 Water pollution categories o 2.1 Point source pollution o 2.2 Non–point source pollution
• 3 Groundwater pollution
• 4 Causes of water pollution o 4.1 Pathogens o 4.2 Chemical and other contaminants o 4.3 Thermal pollution
• 5 Transport and chemical reactions of water pollutants
• 6 Measurement of water pollution o 6.1 Sampling o 6.2 Physical testing o 6.3 Chemical testing o 6.4 Biological testing
• 7 Control of water pollution o 7.1 Domestic sewage o 7.2 Industrial wastewater o 7.3 Agricultural wastewater o 7.4 Construction site stormwater o 7.5 Urban runoff (stormwater)
• 8 See also
• 9 References
• 10 External links
[edit] Introduction
Millions depend on the polluted Ganges river.
Water pollution is a major problem in the global context. It has been suggested that it is the leading worldwide cause of deaths and diseases,[1][2] and that it accounts for the deaths of more than 14,000 people daily.[2] An estimated 700 million Indians have no access to a proper toilet, and 1,000 Indian children die of diarrheal sickness every day.[3] Some 90% of China's cities suffer from some degree of water pollution,[4] and nearly 500 million people lack access to safe drinking water.[5] In addition to the acute problems of water pollution in developing countries, industrialized countries continue to struggle with pollution problems as well. In the most recent national report on water quality in the United States, 45 percent of assessed stream miles, 47 percent of