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  2. Water pollution - Wikipedia

    en.wikipedia.org/wiki/Water_pollution

    Nutrient pollution caused by Surface runoff of soil and fertilizer during a rain storm Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters (lakes, rivers and coastal waters ), in which excess nutrients, usually nitrogen or phosphorus ...

  3. List of most-polluted rivers - Wikipedia

    en.wikipedia.org/wiki/List_of_most-polluted_rivers

    Name Location Dependent population Description Sources of pollution Impact Bharalu River: Assam, India: One of the most polluted rivers in the state of Assam. [19] The biochemical oxygen demand of the river is 52 mg/L in compared to the permissible limit set by the National River Conservation Directorate (NRCD) at 3 mg/L. [20]

  4. List of environmental websites - Wikipedia

    en.wikipedia.org/wiki/List_of_environmental_websites

    Globe at Night—initially a NASA educational program—crowdsourcing measurements of light pollution in the night sky; Microwave News—independent and not aligned with any industry or government agency—reporting on the health and environmental impacts of electromagnetic fields (EMFs) and other types of non-ionizing radiation

  5. Water pollution in the United States - Wikipedia

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

    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]

  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. Pollution kills millions of little kids a year, says world ...

    www.aol.com/2017-03-05-pollution-kills-millions...

    Air pollution, whether it’s from factories, car exhaust, or secondhand smoke from family members, is a major cause of fatal respiratory infections. Pollution kills millions of little kids a year ...