Point source — definition (Water)

Water

Any discernible, confined, or discrete conveyance from which pollutants are or may be discharged, including, but not limited to, any pipe, ditch, channel, tunnel, conduit, well, container, rolling stock, concentrated animal feeding operation, or vessel or other floating craft. A stationery location or fixed facility from which pollutants are discharged or emitted. Any single identifiable source of pollution. Pollution that comes from a well-defined source.

Bureau of Reclamation — Bureau of Reclamation Glossary

Science

Weather

A pollutant source that can be treated in a dispersion model as though pollutants were emitted from a single point that is fixed in space. Example: the mouth of a smokestack. Compare area source and line source.

NOAA National Weather Service — National Weather Service Glossary

Science› Weather

Climate Change

A single identifiable source that discharges pollutants into the environment. Examples are smokestack, sewer, ditch, or pipe. See non-point source.

EPA — Global Warming Glossary of Climate Change Terms

Technology

Telecommunications

A source of electromagnetic radiation such that (a) the source is so distant from a point of observation or measurement of the radiation that the wavefront of the radiation is a planar rather than a curved surface, regardless of the shape of the source, (b) the size or shape of the source has no influence on the shape of the wavefront at the point of observation or measurement, and (c) the source need not necessarily radiate with equal radiance in all directions. [From Weik '89]

ATIS — ATIS Telecom Glossary 2007