气候变化领域集成服务门户(CCPortal): Investigation into Beijing commuters’ exposure to ultrafine particles in four transportation modes: bus, car, bicycle and subway

CCPortal

DOI	10.1016/j.atmosenv.2021.118734
	Investigation into Beijing commuters’ exposure to ultrafine particles in four transportation modes: bus, car, bicycle and subway
	Yang Z.; He Z.; Zhang K.; Zeng L.; de Nazelle A.
发表日期	2021
ISSN	1352-2310
卷号	266
英文摘要	Traffic-related air pollution contributes considerably to commuters' daily air pollution exposure. Ultrafine particles (UFP) is one of the most commonly measured traffic-related air pollutant during commuting. There are very limited studies on commuting exposure to air pollution in China. To fill the knowledge gap, we conducted the first study that compares commuters' UFP exposure among four modes in a Chinese city. In this study, we measured particle number concentration (PNC) levels of 63 trips in four transportation modes: bus, car, bicycle and subway in 2015 on a typical commuting route between urban and suburban areas in Beijing. We found that buses experienced the highest PNC (geometric mean (SD): 35,066 (10,856) particles cm−3), followed by bicycles (geometric mean (SD): 28,277 (7942) particles cm−3), then cars (geometric mean (SD): 16,302 (5156) particles cm−3), and finally the subway (geometric mean (SD): 13,245 (2936) particles cm−3). Within the subway mode, we detected the highest PNC at station entrances, followed by the transfer tunnel, while cabin areas showed the lowest levels. For the cabin areas of the subway mode, PNC concentrations were higher when the trains were overground than underground. Measures are needed to reduce commuters’ exposures, particularly those traveling by bus and bicycle. Switching the bus transportation system from diesel to cleaner power, such as compressed natural gas or electricity, may help. © 2021 Elsevier Ltd
关键词	Commuter Cyclist Environmental exposure Indoor environment Microenvironment Ultrafine particles
语种	英语
scopus关键词	Air pollution; Bicycles; Bus transportation; Compressed natural gas; Geometry; Transportation routes; Urban transportation; Commuter; Cyclist; Environmental exposure; Geometric mean; Indoor environment; Microenvironments; Particle number concentration; Traffic-related air pollution; Transportation mode; Ultrafine particle; Buses; atmospheric pollution; commuting; pollution exposure; transportation mode; Article; China; concentration (parameter); electricity; environmental exposure; exhaust gas; geometry; human; indoor environment; motor vehicle; railway; suburban area; traffic and transport; travel; ultrafine particulate matter; Beijing [China]; China
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248205
作者单位	Centre for Environmental Policy, Imperial College London, 14 Prince's Gardens, South Kensington, London, SW7 1NA, United Kingdom; Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu Province, China; State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China; National Engineering Laboratory for Advanced Technology and Equipment of Atmospheric Pollution Monitoring Hefei, China
推荐引用方式 GB/T 7714	Yang Z.,He Z.,Zhang K.,等. Investigation into Beijing commuters’ exposure to ultrafine particles in four transportation modes: bus, car, bicycle and subway[J],2021,266.
APA	Yang Z.,He Z.,Zhang K.,Zeng L.,&de Nazelle A..(2021).Investigation into Beijing commuters’ exposure to ultrafine particles in four transportation modes: bus, car, bicycle and subway.ATMOSPHERIC ENVIRONMENT,266.
MLA	Yang Z.,et al."Investigation into Beijing commuters’ exposure to ultrafine particles in four transportation modes: bus, car, bicycle and subway".ATMOSPHERIC ENVIRONMENT 266(2021).