气候变化领域集成服务门户(CCPortal): Polycyclic aromatic compounds in ambient air in the surface minable area of Athabasca oil sands in Alberta (Canada)

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DOI	10.1016/j.atmosenv.2020.117897
	Polycyclic aromatic compounds in ambient air in the surface minable area of Athabasca oil sands in Alberta (Canada)
	Wnorowski A.; Aklilu Y.-A.; Harner T.; Schuster J.; Charland J.-P.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	This study characterizes concentrations and describes the spatiotemporal patterns of ambient air polycyclic aromatic compounds (PACs) between 2011 and 2015 in the Athabasca oil sands region (AOSR). 24-hour integrated ambient air samples were collected at multiple sites and analyzed for 110 PACs. Alkylated polycyclic aromatic hydrocarbons (alk-PAHs) formed the majority of the PACs in air and correlated with unsubstituted PAHs, suggesting common emission source(s) and/or origin. Concentrations of individual PACs varied spatially and seasonally. Temporal variability of PAC concentrations was evident, however based on Seasonal Mann-Kendall test a monotonic increase in concentrations at the monitored sites was not significant at p < 0.05. PAC concentrations measured during wildfire events (which were excluded from the trend analysis above) were the highest and were enriched in higher molecular weight alk-PAHs. This enrichment in alk-PAHs has not been previously reported and is believed to be a unique phenomenon for the Athabasca region. Sulfur and petroleum coke stockpiles, mining and bitumen processing were identified as potential sources of PACs near the main production operations, while mining and diluent naphtha production stood out as possible sources at a site 16 km north of the main open-pit mining area. © 2020
关键词	Air sampling Alkylated PAHs Athabasca oil sands DBTs Unsubstituted PAHs Wildfire
语种	英语
scopus关键词	Aromatization; Oil sands; Open pit mining; Petroleum coke; Athabasca oil sands; Athabasca regions; Mann-Kendall test; Polycyclic aromatic compounds; Potential sources; Production operations; Spatiotemporal patterns; Temporal variability; Polycyclic aromatic hydrocarbons; asphalt; coke; naphtha; petroleum; polycyclic aromatic compound; polycyclic aromatic hydrocarbon derivative; sulfur; air sampling; ambient air; chemical compound; concentration (composition); PAH; pollutant source; spatiotemporal analysis; trend analysis; air monitoring; air pollution; air sampling; Alberta; alkylation; ambient air; Article; carbon footprint; concentration (parameter); controlled study; mining; molecular weight; priority journal; season; spatiotemporal analysis; tar sand; trend study; wildfire; Alberta; Athabasca Oil Sands; Canada
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248860
作者单位	Air Quality Research Division, Environment and Climate Change Canada, 335 River Rd South, Ottawa, ON K1A 0H3, Canada; Resource Stewardship Division, Alberta Environment and Parks, Canada
推荐引用方式 GB/T 7714	Wnorowski A.,Aklilu Y.-A.,Harner T.,et al. Polycyclic aromatic compounds in ambient air in the surface minable area of Athabasca oil sands in Alberta (Canada)[J],2021,244.
APA	Wnorowski A.,Aklilu Y.-A.,Harner T.,Schuster J.,&Charland J.-P..(2021).Polycyclic aromatic compounds in ambient air in the surface minable area of Athabasca oil sands in Alberta (Canada).ATMOSPHERIC ENVIRONMENT,244.
MLA	Wnorowski A.,et al."Polycyclic aromatic compounds in ambient air in the surface minable area of Athabasca oil sands in Alberta (Canada)".ATMOSPHERIC ENVIRONMENT 244(2021).