FACTOID # 17: Though Rhode Island is the smallest state in total area, it has the longest official name: The State of Rhode Island and Providence Plantations.
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Encyclopedia > Point source (pollution)
It has been suggested that this article or section be merged with Point source (sound), Point source (light), Point source (heat), Point source (radio) and Point source (fluid) (Discuss)
For other uses, see Point source.

A point source of pollution is a single identifiable localized source of air, water, thermal, noise or light pollution. A point source has negligible extent, distinguishing it from other pollution source geometries. Some examples of point-sources of pollution are: Wikipedia does not have an article with this exact name. ... A point source may be a source of light that is treated as having no physical extension, or a source in fluid flow, or in electrostatics, or a source of pollution coming from a single cause, such as a municipal plant. ... Water pollution Pollution is the release of chemical, physical, biological or radioactive contaminants to the environment. ... This power plant in New Mexico releases sulfur dioxide and particulate matter into the air. ... Water pollution Water pollution is a large set of adverse effects upon water bodies (lakes, rivers, oceans, groundwater) caused by human activities. ... Fishkill from receiving waters Thermal pollution is a temperature change in natural water bodies caused by human influence. ... Noise pollution is unwanted human-created sound that disrupts the environment. ... This photo of New York City shows excessive sky glow, one form of light pollution, partly caused by many unshielded lights. ...

Types of air pollution sources are line sources, area sources and volume sources. Air pollution is also often categorized as either stationary or mobile. A power station (also power plant) is a facility for the generation of electric power. ... Flue gas stack at GRES-2 Power Plant in Ekibastus, Kazakhstan is 420 meters tall[1] A Flue gas stack is a type of chimney, a vertical pipe, channel or similar structure through which combustion product gases called flue gases are exhausted to the outside air. ... View of Shell Oil Refinery in Martinez, California. ... Wastewater is any water that has been adversely affected in quality by anthropogenic influence. ... A Pratt and Whitney turbofan engine for the F-15 Eagle is tested at Robins Air Force Base, Georgia, USA. The tunnel behind the engine muffles noise and allows exhaust to escape. ... Street Light (Photographic Collection) is a massive photographic documentation of Sydney, Australia after dark. ...

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