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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > environmental science > environmental degradation > pollution > smog pollution
Natural Resources, Conservation, Environment > environmental science > environmental degradation > pollution > smog pollution
Preferred Term:

smog pollution

Definition:
Smog is the brownish haze that pollutes our air, particularly over cities in the summertime. Smog can make it difficult for some people to breathe and it greatly reduces how far we can see through the air. The primary component of smog is ozone, a gas that is created when nitrogen oxides react with other chemicals in the atmosphere, especially in strong sunlight.
Concept Schemes:
NALT Full
Broader Concept:
pollution
Related Concepts:
Entry Terms:
  • smog
  • photochemical smog
URI:
https://lod.nal.usda.gov/nalt/334418
Download this Concept:
RDF/XMLCreated 2019-09-30, last modified 2019-12-16