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RECORD NUMBER: 46 OF 216

OLS Field Name OLS Field Data
Main Title Determination of a range of concern for mobile source emissions of hydrogen sulfide /
Author Harvey, Craig A.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Control Technology Assessment and Characterization Branch.
Publisher U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Control Technology Assessment and Characterization Branch,
Year Published 1982
Report Number EPA/AA/CTAB/PA/82-7
Stock Number PB82-201773
OCLC Number 702374056
Subjects Motor vehicles--Motors--Exhaust gas--Measurement. ; Automobiles--Motors--Exhaust systems. ; Hydrogen sulfide.
Additional Subjects Air pollution control ; Hydrogen sulfide ; Exhaust emissions ; Mathematical models ; Concentration(Composition) ; Motor vehicles ; Mobile point sources
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100UT1X.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELCD  EPA AA-CTAB-PA-82-7 NVFEL Library/Ann Arbor, MI 02/22/2011
NTIS  PB82-201773 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 35 p. ; 28 cm.
Abstract
This report describes an effort by the Emission Control Technology Division of the Environmental Protection Agency to establish a range of concern for hydrogen sulfide (H2S) emissions from mobile sources. Mathematical models that were previously designed for various exposure scenarios (such as enclosed spaces, expressways, and street canyons) were used to calculate the ambient air concentrations resulting from various mobile source hydrogen sulfide emission factors (grams/mile). In conjunction, with this, a literature search was conducted by Midwest Research Institute under contract to EPA to aid in the determination of the final range of concern. The results of this analysis provide a range of concern for ambient hydrogen sulfide concentrations of 0.03 mg/cu m to 14.0 mg/cu m. This corresponds to motor vehicle emission levels of from 10.5-4,900 mg/mile to 958.5-447,300 mg/mile on the road and 0.04-204 mg/min to 3.8-1,770 mg/min for garages, depending on the type of scenario chosen to represent public exposure. Under non-malfunction conditions or when the malfunction does not cause a rich mixture, high catalyst temperature and low exhaust space velocity, the resulting H2S emissions are negligible (below the range of concern for any scenario).
Notes
Technical report. "EPA/AA/CTAB/PA/82-7." "January, 1982." Cover title.