Water pollution

Agricultural pollution

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  Runoff from a field in Iowa, USA (1999)
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  Farm stream without conservation buffers, Iowa, USA (1999)
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  Sediment runoff from farm, southeastern Iowa, USA (2011)
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  Topsoil runoff from farm, central Iowa, USA (2011)

Construction site pollution

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  Construction site runoff, Davidson, North Carolina, USA (2009)
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  Construction site runoff entering the Chattahoochee River, Georgia, USA (2014)

Deteriorating water infrastructure

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  Sanitary sewer overflow in Rhode Island, USA (2006)
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  Sewer overflow, Johannesburg, South Africa (2006)

Flotables (trash pollution)

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  Pollution in the Lachine Canal, Montreal, Canada
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  Chattahoochee River, USA (1972)
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  Marine debris
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  Floating trash, Lucerne, Switzerland (2010)
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  Trash pollution, Kathmandu, Nepal

Industrial waste

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  Chemical plant pollution, Olentangy River, Ohio, USA (1974)
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  Thermal pollution, Kanawha River, West Virginia, USA (1974)
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  Heated water (thermal pollution) flowing out of Potrero Generating Station, San Francisco, California (2008)
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  Coir industry waste, India (2011)
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  Petroleum waste from natural gas wells, Bayou Segnette, Louisiana, USA (1972)
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  Seafood processing waste discharged into town harbor, Sitka, Alaska (2003)
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  Kingston Fossil Plant coal fly ash slurry spill, USA (2008)(Aerial view)
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  Kingston Fossil Plant coal fly ash slurry spill, USA (2008)(1 mile downstream from plant)
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  Paper mill pollution, Maine, USA (1973)

Mine drainage

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  Lousal Mine, Grândola, Portugal (2008)
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  Water colored by iron, Rio Tinto, Spain
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  Runoff from an abandoned mine enters the Bucktail River in Idaho, USA (1996)
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  Jerome, Arizona, USA (1992)
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  Clay quarry waste, Devon, England (2008)

Miscellaneous pollution sources and impacts

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  Pumping of highly toxic (dark black) sludge
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  North Jakarta Slums, Indonesia (2004)
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  Lemna algae, Maracaibo, Venezuela (2007)
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  River with sediment, USA
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  Pollution, Toulouse, France (2008)
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  Pollution, Toulouse, France (2008)
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  Untreated sewage, Rio Guaíba, Brazil
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  Shoreline of Lake Maracaibo, Venezuela, contaminated by Lemna minor (duckweed) due to nutrient pollution
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  sea water

Oil pollution

See also: oil spill

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  Oil and water on a road
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  Diesel spill on a road
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  Impact of oil spill from Amoco Cadiz grounding (1978)
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  Oil sheen on Sandogardy Pond, Northfield, New Hampshire, USA (2008)
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  Aerial photo of oil pollution from petroleum refineries and storage facilities along Lake Maracaibo, Venezuela (infrared photography)

Diagrams, illustrations of water pollution

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  Indian Ocean, october 1997
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  Natural ground cover - impervious ground cover
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  Eutrophication
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  Faroe stamp illustrating sea pollution
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  Faroe stamp illustating sea pollution
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  Ballast water pollution from ships
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  Illustration of a combined sewer system