primary pollutant

in atmospheric chemistry
https://doi.org/10.1351/goldbook.P04838
A pollutant emitted directly into the air from identifiable sources (e.g. SO2, NO, @H02889@, etc.). Secondary pollutants, such as ozone, are generated within the atmosphere through chemical changes which occur in primary pollutants.
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2208 [Terms] [Paper]
Citation: 'primary pollutant' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.P04838 RIS BibTex EndNote
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Last revised: February 24, 2014