文献类型：期刊文献

英文题名：Personal exposure to black carbon during commuting in peak and off-peak hours in Shanghai

作者：Li, Bo[1,2];Lei, Xiao-ning[1,2];Xiu, Guang-li[1,2];Gao, Chi-yuan[3];Gao, Shuang[1];Qian, Ni-sheng[1]

机构：[1]E China Univ Sci & Technol, State Environm Protect Key Lab Risk Assessment &, Shanghai 200237, Peoples R China;[2]Australia China Ctr Air Qual Sci & Management, Shanghai 200237, Peoples R China;[3]Shanghai High Sch, Shanghai 200237, Peoples R China

年份：2015

卷号：524

起止页码：237

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20151700785705);WOS:【SCI-EXPANDED(收录号:WOS:000355010400024)】；

基金：This work was jointly supposed by the Shanghai Pujiang Program (13PJD013), Ph.D. Programs Foundation of the Ministry of Education of the People's Republic of China (No. 20120074140001) and the Fundamental Research Funds for the Central Universities (WB1113005). The authors are grateful to Professor Jia-liang Feng for his assistance in the measurement of EC.

语种：英文

外文关键词：Black carbon; Personal exposure; Traffic modes; Road ways; Diesel vehicles

摘要：A study on a commuter's exposure to black carbon (BC) in five different traffic modes (taxi, bus, subway, cycling and walking) was conducted in Xuhui District, Shanghai. A commuter's real-time exposure concentrations were recorded by MicroAeth AE51 BC monitors, and the average BC exposure concentration and inhalation dose were analyzed. Data collected by cyclist was applied to characterize the micro-variability in relation to traffic density and street topology. The distance to the traffic and the street topology as well as the volume of heavy diesel trucks were the dominant factors influencing the BC concentrations. In this study, a high variability of BC concentrations between streets and even within streets was observed, and also between days and hour of the day. The average BC exposure concentrations were 5.59 +/- 1.02 mu g/m(3), 6.58 +/- 1.78 mu g/m(3), 7.28 +/- 1.87 mu g/m(3), 8.62 +/- 4.13 mu g/m(3) and 9.43 +/- 2.89 mu g/m(3) for walking, cycling, bus, taxi and subway trips, respectively. Exposure levels of in vehicle microenvironments were 8.66 +/- 3.66 mu g/m(3), 9.39 +/- 6.98 mu g/m(3) and 10.96 +/- 2.72 mu g/m(3) for bus, taxi and subway, respectively. While inhalation doses were 0.68 +/- 0.33 mu g, 0.95 +/- 0.29 mu g, 1.36 +/- 0.37 mu g, 1.50 +/- 0.39 mu g and 1.58 +/- 0.29 mu g for taxi, subway, cycling, bus and walking, respectively. BC exposure level of walking was the lowest among all the traffic modes, but its inhalation dose was the highest. (C) 2015 Elsevier B.V. All rights reserved.