Determination of a range of concern for mobile source emissions of hydrogen sulfide. Technical report

Technical Report · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6782557

Harvey, C A

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).

• Research Organization: Environmental Protection Agency, Ann Arbor, MI (USA)
• OSTI ID: 6782557
• Report Number(s): PB-82-201773
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
CHALCOGENIDES
CONTROL
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MATHEMATICAL MODELS
MOBILE POLLUTANT SOURCES
POLLUTION CONTROL
POLLUTION SOURCES
SULFIDES
SULFUR COMPOUNDS
VEHICLES
WASTES