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DOI	10.5194/acp-22-3789-2022
	What caused a record high PM10 episode in northern Europe in October 2020?
	Zwaaftink, Christine D. Groot; Aas, Wenche; Eckhardt, Sabine; Evangeliou, Nikolaos; Hamer, Paul; Johnsrud, Mona; Kylling, Arve; Platt, Stephen M.; Stebel, Kerstin; Uggerud, Hilde; Yttri, Karl Espen
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	3789
结束页码	3810
卷号	22 期号:6 页码:22
英文摘要	In early October 2020, northern Europe experienced an episode with poor air quality due to high concentrations of particulate matter (PM). At several sites in Norway, recorded weekly values exceeded historical maximum PM10 concentrations from the past 4 to 10 years. Daily mean PM10 values at Norwegian sites were up to 97 mu g m(-3) and had a median value of 59 mu g m(-3). We analysed this severe pollution episode caused by long-range atmospheric transport based on surface and remote sensing observations and transport model simulations to understand its causes. Samples from three sites in mainland Norway and the Arctic remote station Zeppelin (Svalbard) showed strong contributions from mineral dust to PM10 (23 %-36 % as a minimum and 31 %-45 % as a maximum) and biomass burning (8 %-16 % to 19 %-21 %). Atmospheric transport simulations indicate that Central Asia was the main source region for mineral dust observed in this episode. The biomass burning fraction can be attributed to forest fires in Ukraine and southern Russia, but we cannot exclude other sources contributing, like fires elsewhere, because the model underestimates observed concentrations. The combined use of remote sensing, surface measurements, and transport modelling proved effective in describing the episode and distinguishing its causes.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000773398700001
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/273718
作者单位	Norwegian Institute for Air Research
推荐引用方式 GB/T 7714	Zwaaftink, Christine D. Groot,Aas, Wenche,Eckhardt, Sabine,et al. What caused a record high PM10 episode in northern Europe in October 2020?[J],2022,22(6):22.
APA	Zwaaftink, Christine D. Groot.,Aas, Wenche.,Eckhardt, Sabine.,Evangeliou, Nikolaos.,Hamer, Paul.,...&Yttri, Karl Espen.(2022).What caused a record high PM10 episode in northern Europe in October 2020?.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(6),22.
MLA	Zwaaftink, Christine D. Groot,et al."What caused a record high PM10 episode in northern Europe in October 2020?".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.6(2022):22.