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Water pollution (or aquatic pollution) is the contamination of water bodies, with a negative impact on their uses. [1]: 6 It is usually a result of human activities. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants mix with these water bodies. Contaminants can come from ...
About 40% of drinking water in America comes from groundwater sources. [15] When contaminants enter aquifers, the pollution spreads, eliminating the potential to use the aquifer for drinking water. Groundwater contamination is often the result of chemicals that seep through the soil and into the water supply, such as pesticides and fertilizers ...
The drinking water contaminants that can have chronic effects include chemicals (such as disinfection byproducts, solvents and pesticides), radionuclides (such as radium), and minerals (such as arsenic). Examples of these chronic effects include cancer, liver or kidney problems, or reproductive difficulties. [35]
A study by the Environmental Working Group found that contaminants could lead to nearly 100,000 cancer cases among people who drink it for a lifetime. Contaminated tap water could lead to 100,000 ...
The Summary. A newly identified chemical byproduct may be present in drinking water in about a third of U.S. homes, a study found. Scientists do not yet know whether the byproduct is dangerous.
The number of people drinking contaminated water may be even higher than ... Health effects from the chemicals can be difficult to specify in part because people may be exposed in different ways ...
Drinking water contaminated with feces: Produces dysentery-like symptoms along with a high fever. Usually lasts 2–10 days. Cholera: Spread by the bacterium Vibrio cholerae: Drinking water contaminated with the bacterium In severe forms it is known to be one of the most rapidly fatal illnesses known.
A group of international researchers has discovered a previously unknown chemical compound in U.S. drinking water — and it could be toxic.. The compound — known as chloronitramide anion — is ...