Record Display for the EPA National Library Catalog

RECORD NUMBER: 8 OF 22

OLS Field Name OLS Field Data
Main Title Characterization of emissions from motor vehicles designed for low NOx emissions /
Author Smith, Lawerence R. ; Smith, Lawrence R.
CORP Author Southwest Research Inst., San Antonio, TX.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Research Laboratory,
Year Published 1980
Report Number PB81-155327; EPA-600/2-80-176; EPA-68-02-2497
Stock Number PB81-155327
OCLC Number 759121142
Subjects Automobiles--United States--Motors--Exhaust gas. ; Automobiles--Motors--Exhaust gas. ; Air quality--Standards--United States. ; Nitrogen oxides. ; Nitrogen compounds.
Additional Subjects Air pollution control equipment ; Nitrogen oxides ; Automobiles ; Exhaust emissions ; Hydrocarbons ; Carbon monoxide ; Carbon dioxide ; Oxygen ; Aldehydes ; Amines ; Sulfur dioxide ; Hydrogen sulfur ; Cyanides ; Sulfur inorganic compounds ; Metals ; Trace elements ; Concentration(Composition) ; Tables(Data) ; Catalytic reactors(Exhaust systems)
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100XVQ9.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELCD  EPA 600-2-80-176 NVFEL Library/Ann Arbor, MI 11/07/2011 STATUS
NTIS  PB81-155327 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation xi, 534 p. : ill. ; 28 cm.
Abstract
Tailpipe emissions were characterized for four advanced low NOx catalyst equipped passenger cars under a variety of cyclic driving conditions. All of the vehicles had three-way catalysts, three with feedback carburetors and exhaust gas recirculation, and two with oxidation catalysts following the three-way catalysts. The emission rates of several unregulated pollutants including aldehydes, organic amines, sulfur dioxide, nitrous oxide, several individual hydrocarbons (including benzene), hydrogen sulfide, cyanide, organic sulfides, nickel carbonyl, ammonia, sulfate, trace metals, and N-nitrosodimenthylamine were determined. Additionally, the emission rates of the regulated pollutants, total hydrocarbons, carbon monoxide, and oxides of nitrogen were determined along with carbon dioxide and oxygen. Using three test fuels of varying sulfur content, the emissions were examined at an initial mileage and at 5,000-mile intervals to 15,000 miles. Using a toxicity criteria, the most significant emissions were the currently regulated pollutants; sulfate was the most significant unregulated pollutant. Using commuter exposure models, exposures less than 0.07 OSHA 8-hour Threshold Limit Values are projected for typical congested freeway situations.
Notes
Includes bibliographical references (p. 88-89). "PB81-155327." "August 1980." "Contract No. 68-02-2497"--T.p. "Project Officer: Frank M. Black"--T.p.
Contents Notes
Tailpipe emissions were characterized for four advanced low NOx catalyst equipped passenger cars under a variety of cyclic driving conditions. All of the vehicles had three-way catalysts, three with feedback carburetors and exhaust gas recirculation, and two with oxidation catalysts following the three-way catalysts. The emission rates of several unregulated pollutants including aldehydes, organic amines, sulfur dioxide, nitrous oxide, several individual hydrocarbons (including benzene), hydrogen sulfide, cyanide, organic sulfides, nickel carbonyl, ammonia, sulfate, trace metals, and N-nitrosodimenthylamine were determined. Additionally, the emission rates of the regulated pollutants, total hydrocarbons, carbon monoxide, and oxides of nitrogen were determined along with carbon dioxide and oxygen. Using three test fuels of varying sulfur content, the emissions were examined at an initial mileage and at 5,000-mile intervals to 15,000 miles. Using a toxicity criteria, the most significant emissions were the currently regulated pollutants; sulfate was the most significant unregulated pollutant. Using commuter exposure models, exposures less than 0.07 OSHA 8-hour Threshold Limit Values are projected for typical conjested freeway stations.