Policy assessment for the review of the national ambient air quality standards for particulate matter.
Publication Info.
Research Triangle Park, NC : U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division, January 2020.
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Description
1 online resource ([534] pages) : color illustrations, charts
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
Note
"January 2020."
"EPA-452/R-20-002."
Bibliography
Includes bibliographical references.
Note
Description based on online resource, PDF version; title from title page (EPA, viewed April 28, 2020).