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Evaluating the air quality impacts of the 2008 Beijing Olympic Games: On-road emission factors and black carbon profiles
Wang, Xing1; Westerdahl, Dane1; Chen, Lung Chi2; Wu, Ye3; Hao, Jiming3; Pan, Xiaochuan4; Guo, Xinbiao4; Zhang, K. Max1
关键词Olympics Air pollution Black carbon Climate change Health effects
刊名ATMOSPHERIC ENVIRONMENT
2009-09-01
DOI10.1016/j.atmosenv.2009.06.054
43期:30页:4535-4543
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Environmental Sciences ; Meteorology & Atmospheric Sciences
研究领域[WOS]Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
关键词[WOS]MOTOR-VEHICLE EMISSIONS ; PARTICLE NUMBER ; LOS-ANGELES ; CHINA ; PM2.5 ; AEROSOLS ; INVENTORY ; GASOLINE ; SULFUR ; HEAVY
英文摘要

The aggressive traffic interventions and emission control measures implemented to improve air quality during the 2008 Beijing Olympic Games created a valuable case study to evaluate the effectiveness of these measures on mitigating air pollution and protecting public health. In this paper, we report the results from our field campaign in summer 2008 on the on-road emission factors of carbon monoxide, black carbon (BC) and ultrafine particles (UFP) as well as the ambient BC concentrations. The fleet average emission factors for light-duty gasoline vehicles (LDGV) showed considerable reduction in the Olympic year (2008) compared to the pre-Olympic year (2007). Our measurement of Black Carbon (BC), a primary pollutant, at different elevations at the ambient site suggests consistent decrease in BC concentrations as the height increased near the ground level, which indicates that the nearby ground level sources, probably dominated by traffic, contributed to a large portion of BC concentrations in the lower atmospheric layer in Beijing during summertime. These observations indicate that people living in near ground levels experience higher exposures than those living in higher floors in Beijing. The BC diurnal patterns on days when traffic control were in place during the Olympic Games were compared to those on non-traffic-control days in both 2007 and in 2008. These patterns strongly suggest that diesel trucks are a major source of summertime BC in Beijing. The median BC concentration on Olympic days was 3.7 mu g m(-3), which was dramatically lower than the value on non-traffic-control days, indicating the effectiveness of traffic control regulations in BC reduction in Beijing. (C) 2009 Elsevier Ltd. All rights reserved.

语种英语
WOS记录号WOS:000270319400003
引用统计
被引频次:76[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/67843
专题北京大学公共卫生学院
北京大学公共卫生学院_公共卫生学院
作者单位1.NYU, Sch Med, Dept Environm Med, Tuxedo Pk, NY 10987 USA
2.Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA
3.Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China
4.Peking Univ, Dept Occupat & Environm Hlth, Sch Publ Hlth, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Wang, Xing,Westerdahl, Dane,Chen, Lung Chi,et al. Evaluating the air quality impacts of the 2008 Beijing Olympic Games: On-road emission factors and black carbon profiles[J]. ATMOSPHERIC ENVIRONMENT,2009,43(30):4535-4543.
APA Wang, Xing.,Westerdahl, Dane.,Chen, Lung Chi.,Wu, Ye.,Hao, Jiming.,...&Zhang, K. Max.(2009).Evaluating the air quality impacts of the 2008 Beijing Olympic Games: On-road emission factors and black carbon profiles.ATMOSPHERIC ENVIRONMENT,43(30),4535-4543.
MLA Wang, Xing,et al."Evaluating the air quality impacts of the 2008 Beijing Olympic Games: On-road emission factors and black carbon profiles".ATMOSPHERIC ENVIRONMENT 43.30(2009):4535-4543.
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