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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 .
25% of children living in urban slums along the water's edge have lead in their bloodstreams, and even more suffer from gastrointestinal and respiratory illness. [215] Tietê River Brazil: Deemed the most polluted river in Brazil, according to National Geographic in 2010. [216] Pollution from São Paulo
Some water fountains were turned off due to lead levels. [1] In 2004, the D.C. Council held 11 oversight hearings on the issue; the US Congress held four. [1] American University claimed that its water was safe to drink, because the larger water mains feeding commercial sites like the college were not made of lead. [13]
Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]
Demographics were meaningfully different among the two groups. In terms of race, 24.4% of the children outside of Flint were African American, while 76.8% of the children in areas of high water lead levels (≥ 15 ppb) were African American, and 67.0% of the children in areas of lower water lead levels (< 15 ppb) were African American.
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A recent study by the University of Southern California revealed that exposure to air pollution can harm children's learning and memory, the LA Post reports.. Ammonium nitrate, a specific ...
Nonpoint source (NPS) pollution refers to diffuse contamination (or pollution) of water or air that does not originate from a single discrete source. This type of pollution is often the cumulative effect of small amounts of contaminants gathered from a large area. It is in contrast to point source pollution which results from a single source.