Subjects Air--Pollution--Measurement--Methodology. ; Air quality--Standards--United States. ; Air--Pollution--Meteorological aspects.
"This document is a preliminary draft. It has nor been formally released by the EPA and should not at this stage be construed to represent Agency policy. It is being circulated for comment on its technical accuracy and policy implications." D. Bruce Turner and E.L. Martinez are on assignment from the National Oceanic & Atmospheric Administration, U.S. Department of Commerce. Includes bibliographical reference. "Draft: Do not quote or cite."