Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Impact of Natural Hydrocarbons on Air Quality.
Author Bufalini, Joseph J.
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1980
Report Number EPA 600/2-80-086
Stock Number PB80-202377
OCLC Number 29171068
Additional Subjects Hydrocarbons ; Air pollution ; Ozone ; Sources ; Smog ; Air quality ; Biological processes
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA 600/2-80-086 Region 1 Library/Boston,MA 05/25/2016
EJBD ARCHIVE EPA 600-2-80-086 Headquarters Library/Washington,DC 03/21/2011
EJBD  EPA 600-2-80-086 Headquarters Library/Washington,DC 04/05/2016
EKAM  600/2-80/086 Region 4 Library/Atlanta,GA 02/14/1998
EKBD  EPA-600/2-80-086 Research Triangle Park Library/RTP, NC 07/04/2003
ERAD  EPA 600/2-80-086 Region 9 Library/San Francisco,CA 10/09/2012
ESAD  EPA 600-2-80-086 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-202377 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation viii, 59 pages, 28 cm
The emissions, reactivities, and ozone-forming potential of natural hydrocarbons are discussed. A review of the data available on emission levels for natural hydrocarbons indicates that much more information is needed in order to quantify the absolute emission levels, because emissions data do not agree with ambient air measurements. These ambient air measurements suggest that the previous published value of 9 x 10 to the 8th power ton/yr needs to be lowered to 10 to the 6th power - 10 to the 7th power ton/yr. Emissions may be overpredicted by a factor of 15 to 20, as indicated by back calculations using a simple diffusion trajectory model. Isoprene, when compared to the monoterpenes, is much more efficient in producing ozone through photoxidation in the presence of NOx. This greater ozone production apparently occurs because of the large amount of carbon consumed in the formation of aerosols for the monoterpenes. Since rural areas have very low levels of NOx, vegetative emissions may in fact act as sinks for ozone rather than as sources. All areas investigated show very low levels of natural hydrocarbons, suggesting that even if NOx were available, very low levels of ozone would be produced. Air quality is thus not found to be significantly affected by vegetative emissions.
EPA 600/2-80-086. May 1980.