primary pollutant

primary pollutant

[′prī‚mer·ē pə′lüt·ənt]
(meteorology)
A pollutant that enters the air directly from a source.
References in periodicals archive ?
The primary pollutant in both cities is particulate matter, largely the result of fossil fuel combustion.
As part of its pro-Green policies, Norway's leftwing Liberal Party demanded the tax be incorporated into the 2016 budget as a means of dampening demand for air travel which is seen a primary pollutant.
The law closes a major loophole in existing laws which would otherwise allow increased and unlimited emissions of carbon dioxide--the primary pollutant that causes global warming--from coal gasification plants.
The primary pollutant groups are "nutrients" (compounds of nitrogen and phosphorus that come from sewage and fertilizer), and chemical pollution (insecticides, heavy metals and other toxic chemicals in stormwater, wastewater and engine discharges).
According to the Environmental Protection Agency, a primary pollutant is an air pollutant that is emitted directly from a source, either a stationary source or a primary source [3].
They conclude that studying individual air pollutants or primary pollutant mixtures may greatly underestimate the adverse health effects caused by air pollution.
One network was identified for genes affected by the primary pollutant mixture, which included proteins relevant to cancer biology.
These findings suggest that studying individual air pollutants or primary pollutant mixtures may greatly underestimate the adverse health effects caused by air pollution.
The Los Angeles metropolitan area has been studied relatively little by time-series analysis, but is a good candidate for study because of its large diverse population ([approximately equals] 14 million); detailed monitoring of air quality and hospital admissions; mild climate, which should limit confounding of pollution effects by weather stresses; and severe but widely variable air pollution (with maximum levels of primary pollutant gases, secondary photochemical oxidant gases, and particulate pollution occurring at somewhat different times and places).
The report said the primary pollutants of concern in the UAE include particulate matter (small solid or liquid particles found in the air).
2] is a pollutant produced by almost every combustion process and correlates well with other primary pollutants, and hence it is a good marker of urban pollution (Conceicao et al.
Combustion processes produce a complex mixture of pollutants comprise of both primary pollutants, such as soot particles and lead, and the products of atmospheric transformation referred to as secondary pollutants, such as ozone ([O.

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