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OLS Field Name OLS Field Data
Main Title Photochemistry of some naturally emitted hydrocarbons /
Author Arnts, Robert R. ; Gay, Jr, Bruce W.
Other Authors
Author Title of a Work
Gay, Bruce W.
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher Environmental Sciences Research Laboratory,
Year Published 1979
Report Number EPA-600/3-79-081
Stock Number PB80-131980
OCLC Number 52642715
Subjects Hydrocarbons. ; Photochemistry.
Additional Subjects Photochemical reactions ; Hydrocarbons ; Trees(Plants) ; Terpene hydrocarbons ; Atmospheric chemistry ; Forests ; Ozone ; Nitrogen oxides ; Ultraviolet radiation
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  QP82.2.P6E2 79-081 Region 1 Library/Boston,MA 04/29/2016
EJBD ARCHIVE EPA 600-3-79-081 Headquarters Library/Washington,DC 04/10/2014
EJED  EPA 600/3-79/081 OCSPP Chemical Library/Washington,DC 02/11/2005
EKBD  EPA-600/3-79-081 Research Triangle Park Library/RTP, NC 07/18/2003
ERAD  EPA 600/3-79-081 Region 9 Library/San Francisco,CA 10/22/2012
ESAD  EPA 600-3-79-081 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-131980 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation ix, 128 pages : illustrations ; 28 cm.
Abstract Six C10H16 monoterpenes, p-cymene, and isoprene, all known or thought to be emitted to the atmosphere by vegetation, were irradiated in the presence of NOx. The terpenes studied included one acyclic triolefin (myrcene), two monocyclic diolefins (d-limonene, terpinolene), and three bicyclic monolefins (alpha-pinene, beta-pinene, and delta-carene). Propylene was also studied since this olefin serves as a point of reference with other chamber studies. Results showed that monoterpenes and isoprene promoted the oxidation of NO to NO2 and were themselves consumed at rates comparable to or greater than propylene; p-cymene was decidedly slow in these respects. The monoterpenes however did not permit the buildup of ozone due to their rapid reaction with ozone. The ozone suppression was particularly noticeable at high carbon/NOx ratios. Deciduous forests, isoprene emitters, are coniferous forests. Coniferous forests may in fact function as a sink for ozone. Reported ambient concentrations of isoprene and terpenic hydrocarbons in forested areas are too low to account for more than a few ppb of ozone even if NOx is available.
Notes "September 1979." Includes bibliographical references (pages 60-66).
Place Published Research Triangle Park, N.C.
Access Notes Also available via the World Wide Web.
Corporate Au Added Ent Environmental Sciences Research Laboratory.
Title Ser Add Ent Research reporting series. Ecological research ; EPA-600/3-79-081.
PUB Date Free Form 1979
Series Title Traced Research reporting series Ecological research; EPA-600/3-79-081
Series Title Untraced Researching reporting series ; EPA-600/3-79-081
NTIS Prices PC A07/MF A01
BIB Level m
Medium unmediated
Content text
Carrier volume
Cataloging Source OCLC/T
OCLC Time Stamp 20160419143718
Language eng
Origin OCLC
OCLC Rec Leader 01464cam 2200385Ia 45020