Preferred Label : emission;
Detailed label : emission in atmospheric chemistry;
IUPAC definition : The total rate at which a solid, liquid or gaseous pollutant is emitted into the atmosphere
from a given source; usually expressed as mass per unit time. Primary emissions are
those substances which are emitted directly to the atmosphere (e.g. NO, SO sub 2 /sub
, etc.), while secondary emissions are formed from the primary emissions through thermal
or photochemical reactions (e.g. ozone, aldehydes, ketones, sulfuric acid, nitric
acid, etc.). The point or area from which the discharge takes place is called the
source; the area in which the emission or its transformed products (e.g. in the case
of aerosols, acidic deposition, etc.) may be deposited is called the receptor area
or sink. Emission may be applied to noise, heat, etc., as well as pollutants.;
Origin ID : E02057;
Automatic exact mappings (from CISMeF team)
- See also
The total rate at which a solid, liquid or gaseous pollutant is emitted into the atmosphere
from a given source; usually expressed as mass per unit time. Primary emissions are
those substances which are emitted directly to the atmosphere (e.g. NO, SO sub 2 /sub
, etc.), while secondary emissions are formed from the primary emissions through thermal
or photochemical reactions (e.g. ozone, aldehydes, ketones, sulfuric acid, nitric
acid, etc.). The point or area from which the discharge takes place is called the
source; the area in which the emission or its transformed products (e.g. in the case
of aerosols, acidic deposition, etc.) may be deposited is called the receptor area
or sink. Emission may be applied to noise, heat, etc., as well as pollutants.
