Analysis of benzene emissions from vehicles and vehicle refueling

Book · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5852125

Raley, D L; McCallum, P W; Shadis, W J

In recent years, several investigators have characterized and measured hydrocarbon components, including benzene, in vehicle exhaust. An analysis is presented of benzene exhaust emission data reported from approximately 100 light-duty vehicles. Results indicate that on average, benzene exhaust emissions from catalyst-equipped vehicles are significantly less than those from non-catalyst vehicles. In addition, benzene exhaust emissions from 3-way catalyst vehicles appear to be significantly less than those from oxidation catalyst vehicles, on average. These observations parallel analogous average reductions in total hydrocarbons, indicating that modern catalyst-based exhaust emission controls reduce benzene emissions to approximately the same degree as they reduce total hydrocarbons. Also, benzene evaporative emissions from 3-way catalyst vehicles appear to be substantially less than those from oxidation catalyst vehicles. Finally, a benzene refueling emission rate was calculated. Its contribution to total benzene emissions appears to be very small.

• OSTI ID: 5852125
• Report Number(s): SAE-TP-841397
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330704* -- Emission Control-- Hydrocarbons
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
AROMATICS
BENZENE
CATALYTIC CONVERTERS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
EMISSION
EQUIPMENT
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDATION
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
VEHICLES
WASTES