Policy assessment for the reconsideration of the National Ambient Air Quality Standards for particulate matter, external review draft.

Other author United States. Environmental Protection Agency. Health and Environmental Impacts Division, issuing body.
Format Electronic
PublicationResearch Triangle Park, NC : U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division, 2021.
Description1 online resource (649 pages in various pagings) : color illustrations, color maps
Supplemental Contenthttps://purl.fdlp.gov/GPO/gpo172798
Subjects

General note"October 2021."
General note"EPA-452/P-21-001."
General noteGPO Cataloging Record Distribution Program (CRDP).
Bibliography noteIncludes bibliographical references.
Source of descriptionOnline resource; title from PDF (EPA, viewed Dec. 13, 2021).
Technical rpt numberEPA-452/P-21-001
GPO item number0483-E-22 (online)
Govt. docs number EP 4.52:P 25/9/DRAFT