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SUMMER 1990 ATLANTA OZONE PRECURSOR STUDY
Citation:
Purdue, L. SUMMER 1990 ATLANTA OZONE PRECURSOR STUDY. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-93/044 (NTIS PB93167203).
Description:
During the summer of 1990, the U.S. Environmental Protection Agency (EPA) conducted a major monitoring study in Atlanta, Georgia, addressing the measurement of ozone and its precursors. The study was undertaken to obtain an information base to support the development and implementation of improved strategies for reducing ozone in U.S. cities that are out of compliance with EPA's National Ambient Air Quality Standard (NAAQS) for ozone. The primary objective of the study was to collect a comprehensive data base of ambient concentrations of ozone and ozone precursors during the summer ozone season at six sites distributed across the Atlanta metropolitan area. Automatic, hourly measurements of 55 volatile organic species representing typical known ozone precursor compounds as well as total non-methane organic hydrocarbons were made around the clock for six weeks at every site through out the study. In addition, continuous monitors for measuring ozone, oxides of nitrogen, carbon monoxide, and pertinent meteorological parameters were operated at each site. lso, supplemental integrated samples were collected in canisters for QA/QC and other purposes and in cartridges for the analysis of certain aldehyde species. Approximately 45 days of hourly data was obtained for each parameter for each of the six sites. A report (EPA/600/R-92/l57) describing the details of this experiment and summarizing the resulting data base is available. The data base containing more than 300,000 hourly measurements of the 60 parameters addressed is also available on a 3.5 inch disk. This lecture provides an overview of the study, focusing on its objectives and its experimental design with a limited discussion on results and interpretation.