DOI: 10.1016/j.atmosenv.2017.02.015
Scopus记录号: 2-s2.0-85012965483
论文题名: Exposure to ultrafine particles and black carbon in diesel-powered commuter trains
作者: Jeong C ; -H ; , Traub A ; , Evans G ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 155 起始页码: 46
结束页码: 52
语种: 英语
英文关键词: Black carbon
; Diesel exhaust
; Diesel-powered commuter train
; Personal exposure
; Ultrafine particle
Scopus关键词: Computational fluid dynamics
; Engines
; Locomotives
; Transportation
; Black carbon
; Commuter trains
; Diesel exhausts
; Personal exposures
; Ultrafine particle
; Passenger cars
; black carbon
; sulfur
; black carbon
; concentration (composition)
; diesel engine
; exhaust emission
; particulate matter
; pollution exposure
; public health
; public transport
; air pollutant
; Article
; city
; concentration process
; controlled study
; diesel engine
; environmental exposure
; exhaust gas
; geometry
; human
; lung deposited surface area
; particle size
; priority journal
; railway
; surface area
; ultrafine particle
; walking
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: Ultrafine particle (UFP), black carbon (BC) and lung deposited surface area (LDSA) concentrations measured during 43 trips on diesel-powered commuter trains revealed elevated exposures under some conditions. When the passenger coaches were pulled by a locomotive, the geometric mean concentrations of UFP, LDSA, and BC were 18, 10, and 6 times higher than the exposure levels when the locomotive pushed the coaches, respectively. In addition, UFP, LDSA, and BC concentrations in pull-trains were 5, 3, and 4 times higher than concentrations measured while walking on city sidewalks, respectively. Exposure to these pollutants was most elevated in the coach located closest to the locomotive: geometric means were 126,000 # cm−3for UFP, 249 μm2 cm−3for LDSA, and 17,800 ng m−3of BC; these concentrations are much higher than those previously reported for other modes of public transportation. Markedly high levels of diesel exhaust are present in passenger trains powered by diesel locomotives operated in pull-mode. Thus, it is recommended that immediate steps be taken to evaluate, and where needed, mitigate exposure in diesel-powered passenger trains, both commuter and inter-city. © 2017 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82687
Appears in Collections: 气候变化事实与影响
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作者单位: Southern Ontario Centre for Atmospheric Aerosol Research, University of Toronto, Toronto, Canada
Recommended Citation:
Jeong C,-H,, Traub A,et al. Exposure to ultrafine particles and black carbon in diesel-powered commuter trains[J]. Atmospheric Environment,2017-01-01,155