Preferred Term:
National Ambient Air Quality Standards
Definition:
Standards which define the levels of air quality which the U.S. Environmental Protection Agency judges are necessary to provide an adequate margin of safety to protect the public health.
Concept Schemes:
NALT Full
Broader Concept:
URI:
https://lod.nal.usda.gov/nalt/225078
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RDF/XMLCreated 2014-08-19, last modified 2014-11-17