8-hour ground-level ozone designations.

Bibliographic Details
Corporate Author:	United States. Environmental Protection Agency
Format:	Government Document Database
Language:	English
Published:	Washington, D.C. : U.S. Environmental Protection Agency.
Subjects:	United States. > Environmental Protection Agency > Rules and practice. United States. > Environmental Protection Agency. Atmospheric ozone > Environmental aspects > United States. Air quality > Law and legislation > United States. Air quality > Standards > United States. Air > Pollution > Standards > United States. Air > Pollution > Standards. Air quality > Law and legislation. Air quality > Standards. Atmospheric ozone > Environmental aspects. United States. Rules.
Online Access:	https://purl.fdlp.gov/GPO/LPS47969

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