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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]
The most polluted river in Japan from the 1960s to the 1990s, leading to cleanup efforts. [218] River Churnet: Staffordshire, England: Became possibly the most polluted river in Europe in the 19th century. Improved after the decline of industry in Leek and the Churnet Valley. [219] Charles River: Massachusetts, United States
The difference with water pollution, however, is that the problems that cause local water quality issues differ from those that create regional air pollution problems. Discharges into water are difficult to measure and effects are dependent on a variety of other factors and vary with weather and location.
American Rivers released a list of this year's 10 most endangered rivers, which includes many popular tourist destinations.
For the first summer in a long time, serious cleanup efforts are happening across the country to make these rivers more appealing and safe. Efforts underway to clean up the country's polluted ...
Polluted stormwater is one of the biggest threats to clean water in the U.S., but it's not treated like wastewater. Here's why.
Klamath River: The removal of the four dams on the lower Klamath following decades of activism by the Un-Dam the Klamath movement. [8] 2022: Neuse River: Decades of pollution mitigation assisted by the Clean Water Act, commemorating its 50th anniversary. [9] 2020: Delaware River: 75 years of progress in reducing pollution and restoring wildlife ...
Between 1947 and 1977, General Electric polluted the Hudson River by discharging polychlorinated biphenyls (PCBs) causing a range of harmful effects to wildlife and people who eat fish from the river. Other kinds of pollution, including mercury contamination and cities discharging untreated sewage, have also caused problems in the river. [1]