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RECORD NUMBER: 5 OF 24

Main Title Comparison of Hydrocarbon Concentrations for 1981 and 1990 in Atlanta.
Author Seila, R. L.;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Publisher 1995
Year Published 1995
Report Number EPA/600/A-95/125;
Stock Number PB96-116835
Subjects Hydrocarbons; Air pollution sampling; Comparative evaluations; Environmental concentration; Chemical analysis; Gas chromatogaphy; Flame ionization; Alkanes; Alkenes; Formaldehyde; Acetaldehyde; Carbon monoxide; Regional analysis; Precursors; Ozone; Atlanta(Georgia); Emissions inventories; TNMOC(Total Nonmethane Organic Compounds)
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB96-116835 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 02/29/1996
Collation 9p
Abstract Field studies were conducted during the July-August period of 1981 and 1990 in Atlanta, Georgia. Paraffinic, olefinic, and aromatic volatile hydrocarbon were determined by gas chromatography with flame ionization detection and cryogenic preconcentration. In 1981 samples from three sites were collected in Tedlar bags and stored in canisters, while in 1990 automated gas chromatographs at six sites analyzed air samples directly every hour with no sample storage. Formaldehyde, acetaldehyde, and CO were also measured by other methods in both studies. TNMOC and 30 compounds were available for comparison after method differences and analysis reporting variations were considered. This paper compares TNMOC and individual compound concentrations and concentration ratios from 13 samples in 1981 and 28 samples in 1990 for the 7:00 and 8:00 am period at Georgia Tech, the site common to both studies.
Category Codes 68A; 43F; 91A
NTIS Prices PC A02/MF A01
Primary Description 600/09
Document Type NT
Control Number 603800780
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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