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  2. Water pollution - Wikipedia

    en.wikipedia.org/wiki/Water_pollution

    Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, that has a negative impact on their uses. [1] : 6 Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants mix with these water bodies.

  3. Water pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_the...

    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 industry, although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1] Extensive industrialization and rapid urban growth ...

  4. Best management practice for water pollution - Wikipedia

    en.wikipedia.org/wiki/Best_management_practice...

    Best management practices ( BMPs) is a term used in the United States and Canada to describe a type of water pollution control. Historically the term has referred to auxiliary pollution controls in the fields of industrial wastewater control and municipal sewage control, while in stormwater management (both urban and rural) and wetland ...

  5. Clean Water Act - Wikipedia

    en.wikipedia.org/wiki/Clean_water_act

    The Clean Water Act ( CWA) is the primary federal law in the United States governing water pollution. Its objective is to restore and maintain the chemical, physical, and biological integrity of the nation's waters; recognizing the responsibilities of the states in addressing pollution and providing assistance to states to do so, including ...

  6. Nonpoint source pollution - Wikipedia

    en.wikipedia.org/wiki/Nonpoint_source_pollution

    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.

  7. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    Water quality refers to the chemical, physical, and biological characteristics of water based on the standards of its usage. [1] [2] It is most frequently used by reference to a set of standards against which compliance, generally achieved through treatment of the water, can be assessed.

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