DOI: 10.1016/j.atmosenv.2017.08.062
Scopus记录号: 2-s2.0-85029022043
论文题名: Assessing the effects of oil sands related ozone precursor emissions on ambient ozone levels in the Alberta oil sands region, Canada
作者: Cho S ; , Vijayaraghavan K ; , Spink D ; , Cosic B ; , Davies M ; , Jung J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 168 起始页码: 62
结束页码: 74
语种: 英语
英文关键词: Alberta oil sands area
; Ground-level ozone
; Ozone precursor emissions
; Trend analysis
Scopus关键词: Air quality
; Oil sands
; Open pit mining
; Ozone
; Sand
; Alberta oil sands
; Ambient air concentration
; Ambient air monitoring
; Ground-level ozone
; Ozone precursors
; Precautionary measures
; Statistical analysis methods
; Trend analysis
; Nitrogen oxides
; nitric oxide
; ozone
; air quality
; ambient air
; assessment method
; concentration (composition)
; emission
; long-term change
; nitrogen oxides
; oil sand
; ozone
; pollution monitoring
; statistical analysis
; trend analysis
; volatile organic compound
; air monitoring
; air quality
; Alberta
; ambient air
; Article
; combustion
; environmental temperature
; humidity
; meteorology
; mining
; precursor
; priority journal
; quality control
; tar sand
; Alberta
; Canada
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: A study was undertaken to determine whether, and the extent to which, increased ground-level ozone (O3) precursor emissions from oil sands development have impacted ambient air quality in the north-eastern Alberta, Canada, over the period 1998 to 2012. Temporal trends in emissions of O3 precursors (NOx and VOC) and ambient air concentrations of O3 precursors, and O3 were examined using the Theil-Sen statistical analysis method. Statistically significant correlations between NOx emissions and ambient NOx concentrations were found mainly near surface (open-pit) mining areas where mine fleets are a large source of NOx emissions. No statistically significant trends in the 4th highest daily maximum 8-hr average O3 at any of the continuous and passive ambient air monitoring stations were found. A significant long-term decrease in monthly averaged O3 is observed at some ambient monitoring sites in summer. A visual examination of long-term variations in annual NOx and VOC emissions and annual 4th highest daily maximum 8-hr O3 concentrations does not reveal any indication of a correlation between O3 concentrations and O3 precursor emissions or ambient levels in the study area. Despite a significant increase in oil sands NOx emissions (8%/yr), there is no statistically significant increase in long-term O3 concentrations at any of monitoring stations considered. This suggests that there is surplus NOx available in the environment which results in a titration of ambient O3 in the areas that have ambient monitoring. The limited ambient O3 monitoring data distant from NOx emission sources makes it impossible to assess the impact of these increased O3 precursor levels on O3 levels on a regional scale. As a precautionary measure, the increasing oil sands development O3 precursor emissions would require that priority be given to the management of these emissions to prevent possible future O3 ambient air quality issues. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82737
Appears in Collections: 气候变化事实与影响
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作者单位: Government of Alberta, Alberta Environment and Parks, Edmonton, AB, Canada; Cumulative Environmental Management Association, Air Working Group, Fort McMurray, AB, Canada; Ramboll Environ, Novato, CA, United States; Ramboll Environ, Mississauga, ON, Canada; Stantec, Calgary, AB, Canada
Recommended Citation:
Cho S,, Vijayaraghavan K,, Spink D,et al. Assessing the effects of oil sands related ozone precursor emissions on ambient ozone levels in the Alberta oil sands region, Canada[J]. Atmospheric Environment,2017-01-01,168