气候变化领域集成服务门户(CCPortal): Biogenic and anthropogenic sources of aerosols at the High Arctic site Villum Research Station

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DOI	10.5194/acp-19-10239-2019
	Biogenic and anthropogenic sources of aerosols at the High Arctic site Villum Research Station
	Nielsen I.E.; Skov H.; Massling A.; Eriksson A.C.; Dall'osto M.; Junninen H.; Sarnela N.; Lange R.; Collier S.; Zhang Q.; Cappa C.D.; Nøjgaard J.K.
发表日期	2019
ISSN	16807316
起始页码	10239
结束页码	10256
卷号	19 期号:15
英文摘要	There are limited measurements of the chemical composition, abundance and sources of atmospheric particles in the High Arctic To address this, we report 93 d of soot particle aerosol mass spectrometer (SP-AMS) data collected from 20 February to 23 May 2015 at Villum Research Station (VRS) in northern Greenland (81?360 N). During this period, we observed the Arctic haze phenomenon with elevated PM1 concentrations ranging from an average of 2.3, 2.3 and 3.3 μg m-3 in February, March and April, respectively, to 1.2 μg m-3 in May. Particulate sulfate (SO2 4-) accounted for 66 % of the non-refractory PM1 with the highest concentration until the end of April and decreasing in May. The second most abundant species was organic aerosol (OA) (24 %). Both OA and PM1, estimated from the sum of all collected species, showed a marked decrease throughout May in accordance with the polar front moving north, together with changes in aerosol removal processes. The highest refractory black carbon (rBC) concentrations were found in the first month of the campaign, averaging 0.2 μg m-3. In March and April, rBC averaged 0.1 μg m-3 while decreasing to 0.02 μg m-3 in May. Positive matrix factorization (PMF) of the OA mass spectra yielded three factors: (1) a hydrocarbon-like organic aerosol (HOA) factor, which was dominated by primary aerosols and accounted for 12 % of OA mass, (2) an Arctic haze organic aerosol (AOA) factor and (3) a more oxygenated marine organic aerosol (MOA) factor. AOA dominated until mid-April (64 %-81 % of OA), while being nearly absent from the end of May and correlated significantly with SO2-4, suggesting the main part of that factor is secondary OA. The MOA emerged late at the end of March, where it increased with solar radiation and reduced sea ice extent and dominated OA for the rest of the campaign until the end of May (24 %-74 % of OA), while AOA was nearly absent. The highest O=C ratio (0.95) and S=C ratio (0.011) was found for MOA. Our data support the current understanding that Arctic aerosols are highly influenced by secondary aerosol formation and receives an important contribution from marine emissions during Arctic spring in remote High Arctic areas. In view of a changing Arctic climate with changing sea-ice extent, biogenic processes and corresponding source strengths, highly time-resolved data are needed in order to elucidate the components dominating aerosol concentrations and enhance the understanding of the processes taking place. © 2019 Author(s).
语种	英语
scopus关键词	aerosol; anthropogenic source; biogenic emission; concentration (composition); mass spectrometry; research institution; sea ice; solar radiation; sulfate; Arctic; Greenland
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/144761
作者单位	Department of Environmental Science, Aarhus University, Roskilde, Roskilde, 4000, Denmark; Arctic Research Centre, Aarhus University, Aarhus, 8000, Denmark; Division of Ergonomics and Aerosol Technology, Lund University, P.O. Box 118, Lund, 22100, Sweden; Division of Nuclear Physics, Lund University, P.O. Box 118, Lund, 22100, Sweden; Institute of Chemical Engineering and Biotechnology and Environmental Technology, University of Southern Denmark, Odense, 5230, Denmark; Institute of Marine Sciences, CSIC, Passeig Marítim de la Barceloneta 37-49, Barcelona, 08003, Spain; Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, 00140, Finland; Department of Environmental Toxicology, University of California, Davis, CA 95616, United States; Department of Civil and Environmental Engineering, University of California, Davis, CA 95616, United States; Institute of Physics, University of Tartu, Ülikooli 18, Tartu, 50090, Estonia
推荐引用方式 GB/T 7714	Nielsen I.E.,Skov H.,Massling A.,et al. Biogenic and anthropogenic sources of aerosols at the High Arctic site Villum Research Station[J],2019,19(15).
APA	Nielsen I.E..,Skov H..,Massling A..,Eriksson A.C..,Dall'osto M..,...&Nøjgaard J.K..(2019).Biogenic and anthropogenic sources of aerosols at the High Arctic site Villum Research Station.Atmospheric Chemistry and Physics,19(15).
MLA	Nielsen I.E.,et al."Biogenic and anthropogenic sources of aerosols at the High Arctic site Villum Research Station".Atmospheric Chemistry and Physics 19.15(2019).