DOI: 10.1016/j.atmosenv.2016.11.035
Scopus记录号: 2-s2.0-85002939066
论文题名: Estimation of spatial patterns of urban air pollution over a 4-week period from repeated 5-min measurements
作者: Gillespie J ; , Masey N ; , Heal M ; R ; , Hamilton S ; , Beverland I ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 150 起始页码: 295
结束页码: 302
语种: 英语
英文关键词: Air pollution
; Black carbon
; Microaethalometer
; Mobile
; Nitrogen dioxide
; Particle number
Scopus关键词: Air pollution
; Nitrogen
; Nitrogen oxides
; Black carbon
; Microaethalometer
; Mobile
; Nitrogen dioxides
; Particle numbers
; Pollution
; black carbon
; nitrogen dioxide
; atmospheric pollution
; black carbon
; concentration (composition)
; environmental monitoring
; equipment
; nitrogen dioxide
; particle size
; spatial distribution
; spatial variation
; traffic emission
; urban atmosphere
; air pollutant
; air pollution
; Article
; concentration (parameters)
; measurement
; priority journal
; Glasgow [Scotland]
; Scotland
; United Kingdom
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: Determination of intra-urban spatial variations in air pollutant concentrations for exposure assessment requires substantial time and monitoring equipment. The objective of this study was to establish if short-duration measurements of air pollutants can be used to estimate longer-term pollutant concentrations. We compared 5-min measurements of black carbon (BC) and particle number (PN) concentrations made once per week on 5 occasions, with 4 consecutive 1-week average nitrogen dioxide (NO2) concentrations at 18 locations at a range of distances from busy roads in Glasgow, UK. 5-min BC and PN measurements (averaged over the two 5-min periods at the start and end of a week) explained 40–80%, and 7–64% respectively, of spatial variation in the intervening 1-week NO2 concentrations for individual weeks. Adjustment for variations in background concentrations increased the percentage of explained variation in the bivariate relationship between the full set of NO2 and BC measurements over the 4-week period from 28% to 50% prior to averaging of repeat measurements. The averages of five 5-min BC and PN measurements made over 5 weeks explained 75% and 33% respectively of the variation in average 1-week NO2 concentrations over the same period. The relatively high explained variation observed between BC and NO2 measured on different time scales suggests that, with appropriate steps to correct or average out temporal variations, repeated short-term measurements can be used to provide useful information on longer-term spatial patterns for these traffic-related pollutants. © 2016 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82243
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, University of Strathclyde, 505F James Weir Building, 75 Montrose Street, Glasgow, United Kingdom; School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, United Kingdom; Ricardo Energy and Environment, Blythswood Square, Glasgow, United Kingdom
Recommended Citation:
Gillespie J,, Masey N,, Heal M,et al. Estimation of spatial patterns of urban air pollution over a 4-week period from repeated 5-min measurements[J]. Atmospheric Environment,2017-01-01,150