Record Display for the EPA National Library Catalog


Main Title Investigation of ozone and ozone precursor concentrations at nonurban locations in the Eastern United States : phase II, meteorological analyses /
Author Bach, W. D., Jr.
CORP Author Research Triangle Inst., Research Triangle Park, N.C.;Environmental Protection Agency, Research Triangle Park, N.C. Office of Air Quality Planning and Standards.
Publisher U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Office of Air and Waste Management ; National Technical Information Service [distributor,
Year Published 1975
Report Number EPA 450/3-74-034-a; EPA-68-02-1077
Stock Number PB-246 899
OCLC Number 28524890
Subjects Ozone--Measurement--East (US) ; Ozone--Measurement--United States, Eastern
Additional Subjects Ozone ; Atmospheric composition ; Nitrogen oxides ; Hydrocarbons ; Air pollution ; Meteorological data ; Weather modification ; Rural areas ; Air pollution ; Gas analysis ; Concentration(Composition) ; Altitude ; Data acquisition ; Trajectories ; Climatic changes ; Temperature ; Sunrise ; Sunset ; Dispersions ; Stagnation point ; Fronts(Meteorology) ; Time studies ; Dew point ; Numerical analysis ; Cross sections ; Ohio ; Pennsylvania ; Maryland ; West Virginia ; Air quality data ; Eastern Region(United States)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-450/3-74-034a Research Triangle Park Library/RTP, NC 08/27/1999
ELBD ARCHIVE EPA 450-3-74-034a Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 450-3-74-034A Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-246 899 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 144 p. : ill. ; 27 cm.
The meteorological conditions occurring during measurements of ozone at four nonurban locations in Ohio, Pennsylvania, Maryland and West Virginia are examined for their influence upon the ozone concentrations at the synoptic time and space scale. Air parcel trajectories at the 900 mb level for the forty-eight hours prior to arrival at each location were examined for the possible influence of transport across urban-industrial areas on the measured non-urban ozone. Time-altitude sections of potential temperature and stability from the ground to 5 km at four nearby rawinsonde locations showed that major anomalies in the vertical structure of the lower troposphere are important to the occurrences of high ozone concentrations. A regression analysis of twelve-hour average ozone concentrations as a function of properties of the mixed layer showed that the mean mixing ratio of the layer in the most significant variable of the eight shown. The mixing depth is the next most significant. Average hourly ozone concentrations did not exceed 160 micrograms/cum when the maximum daily temperature was less than 16.5C.
"February 1975."