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| - Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds. Water pollution affects the entire biosphere – plants and organisms living in these bodies of water. In almost all cases the effect is damaging not only to individual species and population, but also to the natural biological communities.
- Search for "Water_pollution" on Wikipedia, Wikimedia Commons, Wiktionary, Wikiquote, Wikibooks, Wikia, Wikitravel, Google (excludes "Wikipedia", adds "water"), Yahoo (excludes "Wikipedia", adds "water"). Water pollution is a large set of adverse effects upon bodies of water such as lakes, rivers, oceans, and groundwater caused by human activities.
- Water pollution is a contamination of natural water bodies by chemical, physical, radio active substances. Water pollution is a large set of adverse effects upon bodies of water such as lakes, rivers, oceans, and groundwater caused by human activities.
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| abstract
| - Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds. Water pollution affects the entire biosphere – plants and organisms living in these bodies of water. In almost all cases the effect is damaging not only to individual species and population, but also to the natural biological communities.
- Water pollution is a contamination of natural water bodies by chemical, physical, radio active substances. Water pollution is a large set of adverse effects upon bodies of water such as lakes, rivers, oceans, and groundwater caused by human activities. Water pollution has many causes and characteristics. Natural phenomena such as volcanoes, algae blooms, storms, earthquakes, runoff, decay of vegetation and oil seeps can cause changes in water quality and the ecological status of water. Increases in nutrient loading may lead to eutrophication. Organic wastes such as sewage impose high oxygen demands on the receiving water leading to oxygen depletion with potentially severe impacts on the whole eco-system. Industries discharge a variety of pollutants in their wastewater including heavy metals, resin pellets, organic toxins, oils, nutrients, and solids. Discharges can also have thermal effects, especially those from power stations, and these too reduce the available oxygen. Silt-bearing runoff from many activities including construction sites, deforestation and agriculture can inhibit the penetration of sunlight through the water column, restricting photosynthesis and causing blanketing of the lake or river bed, in turn damaging ecological systems. Pollutants in water include a wide spectrum of chemicals, pathogens, and physical chemistry or sensory changes. Some occur occur naturally, but most result from human activity. Many of the chemical substances are toxic. Pathogens can produce waterborne diseases in either human or animal hosts. Alteration of water's physical chemistry include acidity, electrical conductivity, temperature, and eutrophication. Eutrophication is the fertilisation of surface water by nutrients that were previously scarce. Even many of the municipal water supplies in developed countries can present health risks. 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,and that it accounts for the deaths of more than 14,000 people daily.
* One gallon of oil can pollute 1,000,000 gallons of water
* One barrel of oil can pollute 42,000,000 gallons of water
* One gallon of paint can pollute 250,000 gallons of water
* One gallon of gasoline can pollute 750,000 gallons of water
* One gallon of road salt can pollute 3,840 gallons of water
* One gallon of trichloroethylene can pollute more than 192,000,000 gallons of water
* One gallon of mercury can pollute a 24 square mile lake
* One ton of salt can pollute 400,000 gallons of water
* One ton of coal can pollute nearly 600 gallons of water
* One ton of mercury can pollute a 81,000 square kilometer lake
* One metric ton of lead can pollute 20 gigaliters of water
* One metric ton of mercury can pollute a 31,250 square mile lake
* Mercury from one thermometer can pollute 5,000,000 gallons of water (6 Olympic sized swimming pools)
* Mercury from one fluorescent light bulb can pollute 6,000 gallons of water
* One American mine can pollute 675,000,000 gallons of water each year
- Search for "Water_pollution" on Wikipedia, Wikimedia Commons, Wiktionary, Wikiquote, Wikibooks, Wikia, Wikitravel, Google (excludes "Wikipedia", adds "water"), Yahoo (excludes "Wikipedia", adds "water"). Water pollution is a large set of adverse effects upon bodies of water such as lakes, rivers, oceans, and groundwater caused by human activities. Water pollution has many causes and characteristics. Natural phenomena such as volcanoes, algae blooms, storms, earthquakes, runoff, decay of vegetation and oil seeps can cause changes in water quality and the ecological status of water. Increases in nutrient loading may lead to eutrophication. Organic wastes such as sewage impose high oxygen demands on the receiving water leading to oxygen depletion with potentially severe impacts on the whole eco-system. Industries discharge a variety of pollutants in their wastewater including heavy metals, resin pellets, organic toxins, oils, nutrients, and solids. Discharges can also have thermal effects, especially those from power stations, and these too reduce the available oxygen. Silt-bearing runoff from many activities including construction sites, deforestation and agriculture can inhibit the penetration of sunlight through the water column, restricting photosynthesis and causing blanketing of the lake or river bed, in turn damaging ecological systems. Pollutants in water include a wide spectrum of chemicals, pathogens, and physical chemistry or sensory changes. Some occur occur naturally, but most result from human activity. Many of the chemical substances are toxic. Pathogens can produce waterborne diseases in either human or animal hosts. Alteration of water's physical chemistry include acidity, electrical conductivity, temperature, and eutrophication. Eutrophication is the fertilisation of surface water by nutrients that were previously scarce. Even many of the municipal water supplies in developed countries can present health risks. 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, and that it accounts for the deaths of more than 14,000 people daily.
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