Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Ozone in the Northeastern United States /
Author Ludwig, F. L.
Other Authors
Author Title of a Work
Shelar, E.
Publisher Stanford Research Institute,
Year Published 1977
Report Number EPA 901-9-76-007; EPA-68-02-2352; SRI-4967
Stock Number PB-267 563
OCLC Number 28773464
Subjects Atmospheric ozone--Environmental aspects--Northeastern States. ; Ozone--Analysis. ; Air quality--Northeastern States.
Additional Subjects Ozone ; Air quality ; Air pollution ; Urban areas ; Oxidants ; Atmospheric motion ; Concentration(Composition) ; Meteorological charts ; Plumes ; Trajectories ; Directional measurement ; Wind direction ; Nomographs ; Photochemistry ; Northeast Region(United States) ; Path of pollutants
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAD  EPA 901-9-76-007 Region 1 Library/Boston,MA 01/04/2016
EJBD ARCHIVE EPA 901-9-76-007 Headquarters Library/Washington,DC 03/19/2012
EJED  EPA 901-9-76-007 OCSPP Chemical Library/Washington,DC 06/25/2019
EKBD  EPA-901/9-76-007 Research Triangle Park Library/RTP, NC 04/13/2009
NTIS  PB-267 563 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 1 volume (various pagings) : illustrations ; 28 cm
The data from the summer 1975 Northeast Oxidant Study have been combined with routinely collected weather and pollutant data to demonstrate that oxidant and its precursors are transported for distances in excess of 100 km in the New York, New Jersey, and southern New England region. Vertical cross sections of ozone concentration clearly show urban ozone plumes. During a daytime passage of a weather front, strong ozone gradients are observed between the warm polluted air ahead of the front and the clearer, cooler air behind; at any fixed site, concentrations drop rapidly as the front passes and clean air replaces polluted. Nighttime frontal passages do not show the marked ozone gradients found during a daytime frontal passage. High nighttime ozone concentrations are associated with the simultaneous occurrence of unusual vertical mixing and an ozone layer aloft. The ozone layer aloft appears to be the remnant of daytime photochemical production in an urban plume.
"Final Report, March 1977." "EPA 901-9-76-007." Cover title. "Contract No. 68-02-2352, SRA Project 4967." Includes bibliographical references (pages 103-105).