Point source pollution — 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. The sources are called point… … Wikipedia
point source pollution — pollution occurring from a discrete location such as a factory outlet … Dictionary of ichthyology
Point source — For other uses, see Point source (disambiguation). A point source is a single identifiable localized source of something. A point source has negligible extent, distinguishing it from other source geometries. Sources are called point sources… … Wikipedia
Point source (disambiguation) — A point source is a localised relatively small source of something.Point source may also refer to: *Point source (pollution), a localised (small) source of pollution *Point mass, a point source of gravitational field … Wikipedia
Nonpoint source pollution — Muddy river polluted by sediment. Photo courtesy of United States Geological Survey. Nonpoint source (NPS) pollution refers to both water and air pollution from diffuse sources. Nonpoint source water pollution affects a water body from sources… … Wikipedia
Area source (pollution) — Area sources are sources of pollution which emit a substance or radiation from a specified area. For example, area sources of air pollution are air pollution sources which operate within a certain region. Locomotives operating on certain tracks… … Wikipedia
Volume source (pollution) — A Volume source of pollution is a three dimensional source of pollutant emissions. Essentially, it is an area source with a third dimension.Examples of a volume source of pollution are:* Dust emissions from the wind erosion of uncovered gravel… … Wikipedia
point source — noun a concentrated source (especially of radiation or pollution) that is spatially constricted • Hypernyms: ↑beginning, ↑origin, ↑root, ↑rootage, ↑source * * * I. noun : a source of light or other radiation that is concentrated at a point … Useful english dictionary
point source — noun a) a source of pollution, radiation, waves, fluid or other substance that has one specific location (and negligible physical extent, distinguishing a point source from other source geometries). In simulations they can often be approximated… … Wiktionary
non-point source pollution — polluted runoff from agriculture, mining, timber harvesting and other sources that are not confined sources … Dictionary of ichthyology
Pollution — For the Fransisco Battiato album, see Pollution (album). For the Goodies episode, see Pollution (The Goodies). Air pollution from World War II weapon production in Alabama, 1942 … Wikipedia