Airshed

Airshed

An airshed is a part of the atmosphere that behaves in a coherent way with respect to the dispersion of emissions. It typically forms an analytical or management unit.Also: A geographic boundary for air quality standards.


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  • airshed — [er′shed΄] n. [ AIR + (WATER)SHED] 1. a region sharing a common flow of air, which may become uniformly polluted and stagnant 2. the air of this region …   English World dictionary

  • airshed — /ˈɛəʃɛd/ (say airshed) noun a volume of air confined to a distinct geographic region, and within which pollutants are contained …  

  • airshed — /air shed /, n. Meteorol. a geographical area within which the air frequently is confined or channeled, with all parts of the area thus being subject to similar conditions of air pollution. [1910 15; AIR1 + (WATER)SHED] * * * …   Universalium

  • airshed — ˈ ̷ ̷ ˌ ̷ ̷ noun ( s) Etymology: air + shed (as in watershed) : the air supply of a given region ; also : the geographical area covered by such an air supply * * * /air shed /, n. Meteorol. a geographical area within w …   Useful english dictionary

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