Record Display for the EPA National Library Catalog

RECORD NUMBER: 27 OF 62

OLS Field Name OLS Field Data
Main Title Identification of Volatile Hydrocarbons as Mobile Source Tracers for Fine-Particulate Organics.
Author Zweidinger, R. B. ; Stevens, R. K. ; Lewis, C. W. ; Westburg., H. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;Washington State Univ., Pullman.
Publisher c1990
Year Published 1990
Report Number EPA-600/J-90/066;
Stock Number PB90-245697
Additional Subjects Fines ; Particles ; Exhaust emissions ; Concentration(Composition) ; Sites ; Lead(Metal) ; Potassium ; Mathematical models ; Linear regression ; Reprints ; Volatile organic compounds ; Tracer studies ; Air pollution sampling ; Organic matter ; Wood burning appliances ; Fugitive emissions
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB90-245697 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 12/03/1990
Collation 7p
Abstract
Several volatile organic compounds (VOCs) have been identified as candidates for tracers of fine particulate carbon and Extractable Organic Matter (EOM) from mobile sources. The identification resulted from a multiple screening procedure in which the ambient concentrations of a candidate VOC were first required to have both a high correlation with ambient concentrations of fine particulate Pb, a well established tracer of mobile source emissions, and a low correlation with soil-corrected fine particle potassium (K'), a previously demonstrated tracer of woodsmoke, using measurements from an airshed in which these were the dominant sources. Each VOC surviving this screening was then substituted in place of Pb, and along with K', in multi-linear regression representations of the carbon and EOM data. Successful VOCs resulted in a multiple correlation coefficient (r(sup 2)) at least as good as with K' and Pb, and estimates of the woodsmoke and mobile source contributions virtually the same as with K' and Pb. The reasonableness of these VOCs as mobile source tracers was affirmed by considering what is known about the abundance of those VOCs in woodsmoke and mobile source emissions.