DOI: 10.1016/j.atmosenv.2020.117318
论文题名: Near-road vehicle emissions air quality monitoring for exposure modeling
作者: Moutinho J.L. ; Liang D. ; Golan R. ; Sarnat S.E. ; Weber R. ; Sarnat J.A. ; Russell A.G.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 224 语种: 英语
英文关键词: Air quality
; Carbon monoxide
; Motor transportation
; Nitrogen oxides
; Roads and streets
; Air pollutants
; Air quality monitoring
; Exposure assessment
; Mobile source emissions
; Pollutant concentration
; Road monitoring
; Traffic emissions
; Traffic-related pollutants
; Pollution detection
; black carbon
; carbon monoxide
; nitric oxide
; nitrogen dioxide
; nitrogen oxide
; ozone
; air quality
; atmospheric pollution
; carbon monoxide
; concentration (composition)
; nitrogen dioxide
; pollutant source
; pollution exposure
; road
; traffic emission
; air monitoring
; Article
; circadian rhythm
; controlled study
; environmental exposure
; environmental temperature
; exhaust gas
; maximum concentration
; priority journal
; wind speed
; Atlanta
; Georgia
; United States
学科: Diurnal profile of traffic emissions
; Exposure assessment
; Near-road monitoring
; Traffic-related air pollutants
中文摘要: Exposure to vehicular emissions has been linked to numerous adverse health effects. In response to the arising concerns, near-road monitoring is conducted to better characterize the impact of mobile source emissions on air quality and exposure in the near-road environment. An intensive measurement campaign measured traffic-related air pollutants (TRAPs) and related data (e.g., meteorology, traffic, regional air pollutant levels) in Atlanta, along one of the busiest highway corridors in the US. Given the complexity of the near-road environment, the study aimed to compare two near-road monitors, located in close proximity to each other, to assess how observed similarities and differences between measurements at these two sites inform the siting of other near-road monitoring stations. TRAP measurements, including carbon monoxide (CO) and nitrogen dioxide (NO2), are analyzed at two roadside monitors in Atlanta, GA located within 325 m of each other. Both meteorological and traffic conditions were monitored to assess the temporal impact of these factors on traffic-related pollutant concentrations. The meteorological factors drove the diurnal variability of primary pollutant concentration more than traffic count. In spite of their proximity, while the CO and NO2 concentrations were correlated with similar diurnal variations, pollutant concentrations at the two closely sited monitors differed, likely due to the differences in the siting characteristics reducing the dispersion of the primary emissions out of the near-road environment. Overall, the near-road TRAP concentrations at all sites were not as elevated as seen in prior studies, supporting that decreased vehicle emissions have led to significant reductions in TRAP levels, even along major interstates. Further, the differences in the observed levels show that use of single near-road observations will not capture pollutant levels representative of the local near-road environment and that additional approaches (e.g., air quality models) are needed to characterize exposures. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160938
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, United States; Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, United States; Department of Public Health, Ben-Gurion University of the Negev, Beer Sheva, Israel
Recommended Citation:
Moutinho J.L.,Liang D.,Golan R.,et al. Near-road vehicle emissions air quality monitoring for exposure modeling[J]. Atmospheric Environment,2020-01-01,224