globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2015.10.037
Scopus记录号: 2-s2.0-84946405857
论文题名:
On-road PM2.5 pollution exposure in multiple transport microenvironments in Delhi
作者: Goel R; , Gani S; , Guttikunda S; K; , Wilson D; , Tiwari G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 123
起始页码: 129
结束页码: 138
语种: 英语
英文关键词: Air pollution ; Delhi ; Exposure ; India ; PM2.5 ; Road transport ; Traffic
Scopus关键词: Air conditioning ; Air pollution ; Pollution ; Subway stations ; Telecommunication traffic ; Transportation ; Ambient concentrations ; Ambient measurement ; Delhi ; Exposure ; India ; Microenvironments ; Road transports ; World Health Organization ; Roads and streets ; air conditioning ; ambient air ; atmospheric pollution ; concentration (composition) ; guideline ; particulate matter ; pollution exposure ; road transport ; traffic emission ; World Health Organization ; air conditioning ; air pollution ; ambient air ; Article ; cycling ; environmental exposure ; India ; inhalation ; microenvironment ; particulate matter ; priority journal ; seasonal variation ; traffic and transport ; Delhi ; England ; Honshu ; India ; Japan ; Kanto ; London [England] ; New York [New York (STT)] ; New York [United States] ; Tokyo [Kanto] ; United Kingdom ; United States
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: PM2.5 pollution in Delhi averaged 150 μg/m3 from 2012 through 2014, which is 15 times higher than the World Health Organization's annual-average guideline. For this setting, we present on-road exposure of PM2.5 concentrations for 11 transport microenvironments along a fixed 8.3-km arterial route, during morning rush hour. The data collection was carried out using a portable TSI DustTrak DRX 8433 aerosol monitor, between January and May (2014). The monthly-average measured ambient concentrations varied from 130 μg/m3 to 250 μg/m3. The on-road PM2.5 concentrations exceeded the ambient measurements by an average of 40% for walking, 10% for cycle, 30% for motorised two wheeler (2W), 30% for open-windowed (OW) car, 30% for auto rickshaw, 20% for air-conditioned as well as for OW bus, 20% for bus stop, and 30% for underground metro station. On the other hand, concentrations were lower by 50% inside air-conditioned (AC) car and 20% inside the metro rail carriage. We find that the percent exceedance for open modes (cycle, auto rickshaw, 2W, OW car, and OW bus) reduces non-linearly with increasing ambient concentration. The reduction is steeper at concentrations lower than 150 μg/m3 than at higher concentrations. After accounting for air inhalation rate and speed of travel, PM2.5 mass uptake per kilometer during cycling is 9 times of AC car, the mode with the lowest exposure. At current level of concentrations, an hour of cycling in Delhi during morning rush-hour period results in PM2.5 dose which is 40% higher than an entire-day dose in cities like Tokyo, London, and New York, where ambient concentrations range from 10 to 20 μg/m3. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81347
Appears in Collections:气候变化事实与影响

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作者单位: Transport Research and Injury Prevention Program, Indian Institute of Technology Delhi, New Delhi, India; Environmental and Water Resources Engineering, The University of Texas at AustinTX, United States; Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Mumbai, India; Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, United States; University of California, Berkeley, United States

Recommended Citation:
Goel R,, Gani S,, Guttikunda S,et al. On-road PM2.5 pollution exposure in multiple transport microenvironments in Delhi[J]. Atmospheric Environment,2015-01-01,123
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