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RECORD NUMBER: 43 OF 45

OLS Field Name OLS Field Data
Main Title The relation of oxidant levels to precursor emissions and meteorological features ... /
Author Ludwig, F. L. ; Reiter, E. ; Shelar, E. ; Johnson., W. B. ; Simmon, P. B. ; Mancuso, R. L. ; Kealoha, J. H. S. ; Reiter., E.
Other Authors
Author Title of a Work
Ludwig, F. L.
CORP Author SRI International, Menlo Park, Calif. ;Colorado State Univ., Fort Collins.;Environmental Protection Agency, Research Triangle Park, N.C. Office of Air Quality Planning and Standards.
Publisher Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards,
Year Published 1977
Report Number EPA-450/3-77-022a-c; EPA-450/3-77-022c; EPA 450/3-77-022b; EPA-68-02-2084; SRI-4432
Stock Number PB-275 001
OCLC Number 03741716
ISBN pbk.
Subjects Atmospheric ozone--United States. ; Oxidizing agents.
Additional Subjects Ozone ; Air pollution ; Stratosphere ; Concentration(Composition) ; Troposphere ; Statistical analysis ; Nitrogen oxides ; Hydrocarbons ; Oxidizers ; Atmospheric diffusion ; Sources ; Forecasting ; Emission factors ; Meteorology ; Trajectories ; Graphs ; Mathematical models ; Computer programs ; Atmospheric composition ; METINDX computer program
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20015FED.PDF
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20015FIZ.PDF
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100YC1I.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 450/3-77-022a,c Region 3 Library/Philadelphia, PA 09/30/1994
EJAD  EPA 450/3-77-022b Region 3 Library/Philadelphia, PA 09/30/1994
EJBD ARCHIVE EPA 450-3-77-022a v.1 Headquarters Library/Washington,DC 04/25/2014
EJBD ARCHIVE EPA 450-3-77-022b v.2 Headquarters Library/Washington,DC 04/25/2014
EJBD ARCHIVE EPA 450-3-77-022c v.3 Headquarters Library/Washington,DC 04/25/2014
EKBD  EPA-450/3-77-022a, EPA-450/3-77-022b, EPA-450/3-77-022c Research Triangle Park Library/RTP, NC 09/10/1999
ESAD  EPA 450-3-77-022a Region 10 Library/Seattle,WA 11/29/2016
ESAD  EPA 450-3-77-022b Region 10 Library/Seattle,WA 11/29/2016
ESAD  EPA 450-3-77-022c Region 10 Library/Seattle,WA 11/29/2016
NTIS  PB-275 327 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation volumes : illustrations ; 28 cm.
Abstract
Published ozonesonde data, radioactive fallout measurements, and alpine ozone observations have been used to estimate the stratospheric contribution to observed ozone concentrations at ground level. Long term average effects from the stratosphere over the U.S. are on the order of 10 ppb, with a springtime maximum around 20 to 25 ppb. Short term stratospheric intrusion events resulting in one-hour-average concentrations of stratospheric ozone in excess of 80 ppb in the lower troposphere have a frequency of only about 0.2 percent. Still fewer (but some) of these events lead to ground-level impacts of such a magnitude. Tropospheric causes of high ozone concentrations away from cities have been investigated by statistical analysis of meteorological conditions and the precursor emissions occurring along air trajectories and by comparisons of weather maps and large-scale O3 distributions. At sites well removed from cities, the upwind emissions of oxides of nitrogen are more strongly related to ozone concentrations than are the emissions of hydrocarbons. Widespread violations of the federal oxidant standard are most likely to be found in association with a stagnant high-pressure system or in the warm southwesterly flow in the western portion of a high pressure area, often ahead of an approaching cold front. The results of this and other studies suggest that not all violations of the federal oxidant standard are controllable and this fact must be considered in the design of control strategies. Also, for areas within about 125 km of large cities, control might be achieved through the reduction of HC emissions. In more remote areas, control strategies involving NOx control throughout large regions must be considered.
Notes
Prepared under contract no. 68-02-2084, SRI project 4432. Includes bibliographical references.
Contents Notes
v. I. Analysis and findings.--V. III. Appendices (analytical methods and supplementary data).