Automobile Exhaust Pollutants Level at Traffic Crossroads in Taiyuan
- VernacularTitle:太原市主要交通路口汽车尾气污染状况
- Author:
Zhi-Hong ZHANG
;
Wu-Hong ZHAO
;
Jie DONG
;
Al ET
;
- Publication Type:Journal Article
- Keywords:
Air pollution;
Automobile exhaust;
Particulate matter;
Metals,heavy;
Nitrogen oxides;
Carbon monoxide
- From:
Journal of Environment and Health
2007;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To know automobile exhaust pollution and population exposure to automobile exhaust in Taiyuan,and to provide the basis for controlling automobile exhaust pollution.Methods Two different automobile pollution areas(A and B) were selected as the monitoring sites,the continue sampling was carried out for one week from March to April in 2008.The concentration of PM2.5 was determined by mass method,the inorganic elements in PM2.5 were extracted by Soxhlet method, arsenic and mercury were measured by atomic fluorescent spectrophotometer(AFS),the other metal elements were measured by atomic absorption spectrophotometer.The concentration of NO_x was detected by Saltzman method,the concentration of CO was measured by non-dispersive infrared absorption method.Results At crossroad A,daily average concentration of PM2.5 was 1.604 mg/m~3,which was significantly higher than that at crossroad B(0.64 rag/m~3),P
