Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 5

OLS Field Name OLS Field Data
Main Title Non-urban hydrocarbon concentrations in ambient air north of Houston, Texas /
Author Seila, Robert L.
Other Authors
Author Title of a Work
Seila, Robert L.
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1979
Report Number EPA-600/3-79-010
Stock Number PB-293 227
OCLC Number 52642629
Additional Subjects Gas analysis ; Hydrocarbons ; Methane ; Carbon monoxide ; Vegetation ; Sources ; Air pollution ; Sampling ; Chemical analysis ; Sites ; Laboratory equipment ; Concentration(Composition) ; Gas chromatography ; Texas ; Houston(Texas) ; Air pollution detection ; Air pollution sampling
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20012UWY.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EHAM  EPA-600/3-79-010 Region 1 Library/Boston,MA 05/25/2016
EJAD  EPA 600/3-79-010 Region 3 Library/Philadelphia, PA 01/30/2004
EJBD ARCHIVE EPA 600-3-79-010 Headquarters Library/Washington,DC 03/24/2014
EJBD  EPA 600-3-79-010 c.1 Headquarters Library/Washington,DC 03/24/2014
EKBD  EPA-600/3-79-010 Research Triangle Park Library/RTP, NC 07/18/2003
ELBD  EPA 600-3-79-010 AWBERC Library/Cincinnati,OH 09/16/2016
ESAD  EPA 600-3-79-010 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-293 227 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation viii, 30 pages : illustrations ; 28 cm.
Abstract
In January 1978, a study was undertaken at Jones State Forest, 38 miles north of Houston, Texas, to determine the concentrations of non-methane hydrocarbons, methane, and carbon monoxide; to detail the composition of hydrocarbons (especially of the vegetation); and to discover the sources of non-methane hydrocarbons. Thirteen 3-hour integrated Tedlar bag samples and five grab samples using stainless steel cans were collected over a 39-hour period. The samples were returned to the Research Triangle Park laboratory for analysis, where the can samples showed lower non-methane hydrocarbon concentration values that did the bag samples. Sources of paraffins (72% of the non-methane hydrocarbons) and the other hydrocarbons were found to be: vehicular exhaust (35%), the forest's vegetation (2%), the city of Houston (22%), and the region between Houston and the forest (32%). Isoprene and alpha-pinene were the vegetative hydrocarbons noted, with the latter showing a distinctive 24-hour cycle of concentration variation.
Notes
"February 1979." "EPA-600/3-79-010."