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Main Title Assessment of the contribution of stratospheric ozone to ground-level ozone concentrations /
Author Altshuller, A. P.
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory ; Center for Environmental Research Information [distributor],
Year Published 1984
Report Number EPA/600-D-84-144
Stock Number PB84-246305
OCLC Number 11353238
Subjects Atmospheric ozone--United States
Additional Subjects Air pollution ; Ozone ; Stratosphere ; Transport properties ; Assessments ; Urban areas ; Concentration(Composition) ; Farm crops ; Sources ; Forests ; Reprints ; Air quality ; Path of pollutants
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-D-84-144 Headquarters Library/Washington,DC 11/15/2016
ELBD ARCHIVE EPA 600-D-84-144 In Binder Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-D-84-144 AWBERC Library/Cincinnati,OH 04/10/1998
NTIS  PB84-246305 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8 pages ; 28 cm
This assessment is concerned with the possible contributions of ozone transported from the stratosphere through the troposphere down to ground level to the episodic and longer term ozone concentrations measured in urban and rural areas. The episodic impacts would be of concern with respect to the possible occasions when the primary National Ambient Air Quality Standard for ozone would be exceeded. The larger term average could also contribute to episodic concentration levels, but also are of possible importance in terms of adverse effects on crop yields or forest growth. It is concluded that direct stratospheric ozone intrusions which can result in ozone concentrations exceeding 120 ppbv appear to be extremely infrequent. Stratospheric ozone can contribute to longer term average background ozone concentrations at ground levels locations. It is estimated based on 7 sup Be to O3 and 90 sup Sr to O3 ratios available that during the summer months 15 ppbv or less of the ozone measured may originate in the stratosphere. In early spring stratospheric ozone is likely to make a larger contribution relative to other sources. Ozone produced in the troposplume by photochemical reactions involving anthropogenic precursors can contribute during the summer a substantial part of the ozone down to ground level locations.
Caption title. At head of title: Environmental research brief. "Aug. 1984." Includes bibliographical references. "EPA/600-D-84-144."