OLS : Record

RECORD NUMBER: 49 OF 70

Main Title Monoterpene emission rates from slash pine
Author Tingey, David T.; Burns, Walter F.; Grothaus, Louis C.; Field, Richard W.; Manning, Marybeth
CORP Author Environmental Protection Agency/Northrop Services, Inc., Corvallis, OR.;Environmental Protection Agency, Atlanta, GA. Air and Hazardous Materials Div.
Publisher U.S. Environmental Protection Agency, Region IV,
Place Published Atlanta, Ga. :
Year Published 1978
Report Number EPA 904/9-78-013
Stock Number PB-287 532
OCLC Number 31226085
Subjects Air pollution; Terpene hydrocarbons; Pine trees; Florida; Plants(Botany); Sampling; Data analysis; Temperature; Laboratory equipment; Oxidizers; Slash pine; Photochemical oxidants; Atmospheric chemistry; Tampa(Florida)
Subject Added Ent Hydrocarbons; Monoterpenes; Trees--Environmental aspects
Holdings
Library   Call Number Additional Info Location Date Modified
EKAM EPA 904/9-78-013 Region 4 Library/Atlanta,GA 10/14/1994
NTIS PB-287 532 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 23 p. : ill. ; 28 cm.
Abstract There is a growing awareness concerning the role of vegetation as a source of reactive hydrocarbons that may serve as photochemical oxidant precursors. This study assessed the influence, independently, of light and temperature on monoterpene emissions from slash pine (Pinus elliottii Engelm). Plants were pre-conditioned in a growth chamber then transferred to an environmentaly controlled gas-exchange chamber. After samples of the chamber atmosphere were collected, the monoterpenes were concentrated cryogenically and measured by gas chromatography. Five monoterpenes, alpha-pinene, beta-pinene, myrcene, limonene and B-phellandrene were present in the vapor phase surrounding the plants in sufficient quantity to measure reliably. Light did not directly influence monoterpene emission rates since emissions were similar in the dark and at various light intensities. Monoterpene emission rates increased exponentially with temperature (i.e., emissions depend on temperature in a log-linear manner). The sum of the 5 monoterpenes ranged from 3 to 21 micrograms C/g dry wt/hr as temperature was increased from 20 to 46C.
Notes "August 1978." "Final report : Appendix C" -- Cover "EPA 904/9-78-013". Alternate title: Tampa Bay Area photochemical oxidant study. Bibliography: p. 13-15.
Supplementary Notes See also report dated Apr 78, PB-282 350.
Author Added Ent
Manning, Marybeth.;
Ratsch, Hilman C.
Corporate Au Added Ent United States. Environmental Protection Agency. Region IV. ; Northrop Services, Inc. ; United States. Environmental Protection Agency. Region IV. ; Northrop Services, Inc.
PUB Date Free Form {1978}
Ti Tra Differently Tampa Bay Area photochemical oxidant study.
NTIS Prices PC A03/MF A01
BIB Level m
OCLC Time Stamp 19941005144344
Cataloging Source OCLC/T
Language ENG
Origin OCLC
Type MERGE
OCLC Rec Leader 01143nam 2200313Ka 45010