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DOI	10.5194/acp-21-14199-2021
	Measurement report: The chemical composition of and temporal variability in aerosol particles at Tuktoyaktuk, Canada, during the Year of Polar Prediction Second Special Observing Period
	MacInnis J.; Chaubey J.P.; Weagle C.; Atkinson D.; Chang R.Y.-W.
发表日期	2021
ISSN	1680-7316
起始页码	14199
结束页码	14213
卷号	21 期号:18
英文摘要	The chemical composition, sources, and concentrations of aerosol particles vary on a seasonal basis in the Arctic. While existing research has focused on understanding the occurrence of aerosol particles during the Arctic winter and spring, less is known of their occurrence during the Arctic summer. In this study, atmospheric aerosol particle chemical composition and concentration were determined during July-September 2018 at Tuktoyaktuk, NT, Canada (69.4g ĝ€¯N, 133.0g ĝ€¯W), to coincide with the Year of Polar Prediction's Second Special Observing Period in the Arctic. The chemical composition of fine (PM2.5) and coarse (PM10-2.5) aerosol filter samples suggests the ocean, mineral and/or road dust, and combustion were sources of the sampled aerosol particles. Mass concentrations of PM2 and PM10, estimated from optical particle counter measurements, remained within a similar range during the study. However, elevated mass concentrations coincided with a festival in the community of Tuktoyaktuk, suggesting local human activity was an important source of aerosol particles. Mass concentrations of PM2, which promote negative health effects in humans, were significantly lower at Tuktoyaktuk than the national air quality standard recommended by the government of Canada. These measurements provide an important baseline to compare with future measurements associated with the assessment of aerosol chemistry and air quality in the Arctic. © Copyright:
语种	英语
scopus关键词	aerosol; aerosol composition; concentration (composition); particulate matter; prediction; temporal variation; Canada; Northwest Territories; Tuktoyaktuk
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246560
作者单位	Department of Physics and Atmospheric Science, Dalhousie University, Halifax, B3H 4R2, Canada; Department of Energy ,Environmental and Chemical Engineering, Washington University in St. Louis, St Louis, MO 63130-4899, United States; Department of Geography, University of Victoria, Victoria, V8P 5C2, Canada
推荐引用方式 GB/T 7714	MacInnis J.,Chaubey J.P.,Weagle C.,et al. Measurement report: The chemical composition of and temporal variability in aerosol particles at Tuktoyaktuk, Canada, during the Year of Polar Prediction Second Special Observing Period[J],2021,21(18).
APA	MacInnis J.,Chaubey J.P.,Weagle C.,Atkinson D.,&Chang R.Y.-W..(2021).Measurement report: The chemical composition of and temporal variability in aerosol particles at Tuktoyaktuk, Canada, during the Year of Polar Prediction Second Special Observing Period.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(18).
MLA	MacInnis J.,et al."Measurement report: The chemical composition of and temporal variability in aerosol particles at Tuktoyaktuk, Canada, during the Year of Polar Prediction Second Special Observing Period".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.18(2021).