Heath Risk Assessment of Benzene Series Emission by Gasoline Engine with Three Way Catalytic Converter
- VernacularTitle:汽油发动机排放物经三元催化器催化前后苯系物的健康风险评价
- Author:
Keming LIU
;
Jinru DI
;
Yanfeng ZHANG
- Publication Type:Journal Article
- Keywords:
Air pollution;
Health risk assessment;
Benzene series;
Three way catalytic converter
- From:
Journal of Environment and Health
1993;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the effects of three way catalytic converter on the health risk of benzene series.Methods After collecting the benzene series(benzene,toluene,xylene) in the air inlet and air outlet of the three way catalytic converser in 100% working loads,their health risk was assessed with the methods of health risk assessment.Results After catalysis,the hazard index of toluene and xylene decreased in all loads,the hazard index and carcinogenesis risk of benzene increased in 100% loads,the chronic long-term hazard index of benzene deceased in 100% loads.Conclusion The three way catalytic converter can change the health risk of benzene series emission by gasoline engine,the carcinogenesis risk of benzene series emission will be increased when the gasoline is treated with the three way catalytic converter.
