DOI: 10.1016/j.atmosenv.2015.05.024
Scopus记录号: 2-s2.0-84937891541
论文题名: Factors affecting pollutant concentrations in the near-road environment
作者: Baldwin N ; , Gilani O ; , Raja S ; , Batterman S ; , Ganguly R ; , Hopke P ; , Berrocal V ; , Robins T ; , Hoogterp S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 115 起始页码: 223
结束页码: 235
语种: 英语
英文关键词: Black carbon
; Mobile emissions
; Mobile monitoring
; Traffic
; Ultrafine particles
Scopus关键词: Air pollution
; Nitrogen oxides
; Particle size
; Pollution
; Roads and streets
; Sulfur dioxide
; Telecommunication traffic
; Transportation
; Wind
; Background concentration
; Black carbon
; Elevated concentrations
; Mobile monitoring
; Pollutant concentration
; Residential neighborhoods
; Temporal and spatial variability
; Ultrafine particle
; Particles (particulate matter)
; black carbon
; nitrogen oxide
; sulfur dioxide
; atmospheric pollution
; black carbon
; concentration (composition)
; health impact
; measurement method
; nitrogen oxides
; particle size
; particulate matter
; pollution exposure
; pollution monitoring
; residential location
; roadside environment
; spatiotemporal analysis
; sulfur dioxide
; traffic emission
; wind direction
; wind velocity
; air pollutant
; air pollution control
; air pollution indicator
; Article
; environmental exposure
; environmental factor
; health hazard
; meteorology
; particle size
; particulate matter
; pollution monitoring
; priority journal
; time
; traffic
; weather
; wind
; wind direction
; wind distance
; wind speed
; Detroit
; Michigan
; 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: An improved understanding of traffic-related air pollutants is needed to estimate exposures and adverse health impacts in traffic corridors and near-road environments. In this study, concentrations of black carbon (BC), nitrogen oxides (NO, NO2, NOx), sulfur dioxide (SO2 ), and particulate matter (PM2.5 , PM10 , ultrafine particles, and accumulation mode particles, AMP) were measured using a mobile air pollutant laboratory along nine transects across major roads in Detroit, MI in winter 2012. Repeated measurements were taken during rush-hour periods at sites in residential neighborhoods located 50-500m from both sides of the road. Concentration gradients attributable to on-road emissions were estimated by accounting for traffic volume and mix, wind speed, wind direction, and background concentrations. BC, NO, NOx , and UFP had the strongest gradients, and elevated concentrations of NOx , NO2 , PM2.5 and PM10 , as well as decreased particle size, were found at the 50m sites compared to background levels. Exponential models incorporating effects of road size, wind speed, and up- and downwind distance explained from 31 to 53% of the variability in concentration gradients for BC, NO, NOx , UFP and particle size. The expected concentration increments 50m from the study roads were 17.0ppb for NO, 17.7ppb for NOx , 2245 particles/cm3 for UFP, and 0.24μg/m3 for BC, and the expected distance to decrease increments by half was 89-129m in the downwind direction, and 14-20m in the upwind direction. While accounting for portion of the temporal and spatial variability across transects and measurement periods, these results highlight the influence of road-to-road differences and other locally-varying factors important in urban and industrial settings. The study demonstrates a methodology to quantify near-road concentrations and influences on these concentrations while accounting for temporal and spatial variability, and it provides information useful for estimating exposures of traffic-related air pollutants in urban environments. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81625
Appears in Collections: 气候变化事实与影响
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作者单位: Institute for a Sustainable Environment, Clarkson University, Potsdam, NY, United States; Biostatistics, University of Michigan, Ann Arbor, MI, United States; Enercon Services, Inc., Dallas, TX, United States; Environmental Health Sciences, University of Michigan, Ann Arbor, MI, United States; Department of Civil Engineering, Jaypee University of Information Technology, Solan, Himachal Pradesh, India; Southwest Detroit Environmental Vision, Detroit, MI, United States
Recommended Citation:
Baldwin N,, Gilani O,, Raja S,et al. Factors affecting pollutant concentrations in the near-road environment[J]. Atmospheric Environment,2015-01-01,115