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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > environmental science > pollutants > primary pollutants
Natural Resources, Conservation, Environment > environmental science > pollutants > primary pollutants
Preferred Term:

primary pollutants

Definition:
Any pollutant that is emitted into the atmosphere directly from its source and that retains the same chemical form. An example of a primary pollutant is dust that blows into the air from a landfill.
Concept Schemes:
NALT Full
Broader Concept:
pollutants
URI:
https://lod.nal.usda.gov/nalt/334452
Download this Concept:
RDF/XMLCreated 2019-10-01, last modified 2019-12-16