Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Sulfate and particulate emissions from in-use catalyst vehicles : regulated/unregulated emissions and fuel economy /
Author Gibbs, R. E. ; Wotzak, G. P. ; Byer, S. M. ; Kolak, N. P.
Other Authors
Author Title of a Work
Wotzak, G. P.
Byer, S. M.
Kolak, N. P.
CORP Author New York State Dept. of Environmental Conservation, Albany.;Environmental Protection Agency, Research Triangle Park, NC. Environmental Criteria and Assessment Office.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Office of Health and Environmental Assessment, Environmental Criteria and Assessment Office,
Year Published 1979
Report Number PB82-188699; EPA-600/9-79-047; EPA-R-803520-01
Stock Number PB82-188699
OCLC Number 842151038
Subjects Automobiles--Motors--Exhaust gas. ; Automobiles--Catalytic converters.
Additional Subjects Air pollution control ; Automobiles ; Air pollution control equipment ; Catalytic converters ; Catalysts ; Maintenance ; Carbon monoxide ; Hydrocarbons ; Nitrogen oxides ; Sulfur dioxide ; Particles ; Sulfates ; Regulations ; Fuel consumption ; Catalytic reactors(Exhaust systems)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA 600-9-79-047 NVFEL Library/Ann Arbor, MI 05/13/2013
NTIS  PB82-188699 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation xii, 107 p. : ill., charts, photos ; 28 cm.
An emissions and fuel economy study of 56 catalyst cars in consumer use and maintenance has been performed by repeated testing of the cars over a two and one-half year period. This report summarizes analyses of the data base, and includes results on idle CO levels, mass emissions of HC, CO, NOx, sulfate, SO2 and total particulate; total particulate elemental analyses, catalyst activity, and fuel economy. Test cycles used were the 1975 FTP, one-hour 50 mph cruise, Congested Freeway Driving Schedule, Highway Fuel Economy Test, and idle, 30 and 50 mph cruise for catalyst activity tests. Fuel economy data for over-the-road driving are also presented from on-board totalizing fuel and engine hour meters on each car. Idle CO indicative of maladjusted carburetors (greater than 1%) was found to correlate with FTP CO emissions, purge of stored sulfur in the form of SO2 from catalysts, and decreases in catalyst activity at idle in comparison to 30(2) and 50 mph activity results. Particulate sulfur emissions accounted for only 3.7% of fuel sulfur for the 256 CFDS tests in the data base. Over-the-road fuel economy was most closely represented by the FTP (city) value.
"December 1979." "PB82-188699." "EPA-600/9-79-047." "Grant No. R803520-01"--T.p. "Project Officer: Frances Duffield"--T.p. Includes bibliographical references (p. 100-103).