DOI: 10.1016/j.atmosenv.2015.09.025
Scopus记录号: 2-s2.0-84942155186
论文题名: On-bicycle exposure to particulate air pollution: Particle number, black carbon, PM2.5, and particle size
作者: Hankey S ; , Marshall J ; D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122 起始页码: 65
结束页码: 73
语种: 英语
英文关键词: Active travel
; Non-motorized travel
; Traffic mix
; Traffic-related air pollution
Scopus关键词: Air pollution
; Amphibious vehicles
; Bicycles
; Particles (particulate matter)
; Pollution
; Regression analysis
; Roads and streets
; Transportation
; Trucks
; Video recording
; Active travel
; Average concentration
; Monitoring platform
; Non-motorized travel
; Particle concentrations
; Particulate air pollution
; Traffic mix
; Traffic-related air pollution
; Particle size
; black carbon
; atmospheric pollution
; black carbon
; concentration (composition)
; cycle transport
; particle size
; particulate matter
; pollution exposure
; pollution monitoring
; road construction
; road traffic
; traffic emission
; urban area
; urban design
; videography
; air pollution
; Article
; bicycle
; motor vehicle
; particle size
; particulate matter
; priority journal
; urban area
; videorecording
; Minneapolis
; Minnesota
; 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: Inhalation of air pollution during transport is an important exposure pathway, especially for certain modes of travel and types of particles. We measured concentrations of particulate air pollution (particle number [PN], black carbon [BC], fine particles [PM2.5], particle size) using a mobile, bicycle-based monitoring platform during morning and afternoon rush-hour to explore patterns of exposure while cycling (34 days between August 14 and October 16, 2012 in Minneapolis, MN). Measurements were geo-located at 1 s intervals along 3 prescribed monitoring routes totaling 85 h (1426 km) of monitoring. Mean morning [afternoon] on-road concentrations were 32,500 [16,600] pt cm-3, 2.5 [0.7] μg m-3 BC, 8.7 [8.3] μg m-3 PM2.5, and 42 [39] nm particle diameter. Concentrations were correlated with street functional class and declined within small distances from a major road (e.g., for PN and BC, mean concentration decreased ~20% by moving 1 block away from major roads to adjacent local roads). We estimate the share of on-bicycle exposure attributable to near-traffic emissions (vs. regional pollution) is ~50% for PN and BC; ~25% for PM2.5. Regression models of instantaneous traffic volumes, derived from on-bicycle video recordings of nearby traffic, quantify the increase in particle-concentrations associated with each passing vehicle; for example, trucks were associated with acute, high concentration exposure events (average concentration-increase per truck: 31,000 pt cm-3, 1.0 μg m-3 PM2.5, 1.6 μg m-3 BC). Our findings could be used to inform design of low-exposure bicycle networks in urban areas. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81418
Appears in Collections: 气候变化事实与影响
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作者单位: School of Public and International Affairs, Virginia Tech, 140 Otey Street, Blacksburg, VA, United States; Department of Civil, Environmental, and Geo- Engineering, University of Minnesota, 500 Pillsbury Drive SE, Minneapolis, MN, United States
Recommended Citation:
Hankey S,, Marshall J,D. On-bicycle exposure to particulate air pollution: Particle number, black carbon, PM2.5, and particle size[J]. Atmospheric Environment,2015-01-01,122