气候变化领域集成服务门户(CCPortal): Influence of Biogenic Organics on the Chemical Composition of Arctic Aerosols

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DOI	10.1029/2019GB006226
	Influence of Biogenic Organics on the Chemical Composition of Arctic Aerosols
	Choi J.H.; Jang E.; Yoon Y.J.; Park J.Y.; Kim T.-W.; Becagli S.; Caiazzo L.; Cappelletti D.; Krejci R.; Eleftheriadis K.; Park K.-T.; Jang K.S.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
起始页码	1238
结束页码	1250
卷号	33 期号:10
英文摘要	We use an ultrahigh-resolution 15-T Fourier transform ion cyclotron resonance mass spectrometer to elucidate the compositional changes in Arctic organic aerosols collected at Ny-Ålesund, Svalbard, in May 2015. The Fourier transform ion cyclotron resonance mass spectrometer analysis of airborne organic matter provided information on the molecular compositions of aerosol particles collected during the Arctic spring period. The air mass transport history, combined with satellite-derived geographical information and chlorophyll concentration data, revealed that the molecular compositions of organic aerosols drastically differed depending on the origin of the potential source region. The protein and lignin compound populations contributed more than 70% of the total intensity of assigned molecules when the air masses mainly passed over the ocean region. Interestingly, the intensity of microbe-derived organics (protein and carbohydrate compounds) was positively correlated with the air mass exposure to phytoplankton biomass proxied as chlorophyll. Furthermore, the intensities of lignin and unsaturated hydrocarbon compounds, typically derived from terrestrial vegetation, increased with an increase in the advection time of the air mass over the ocean domain. These results suggest that the accumulation of dissolved biogenic organics in the Arctic Ocean possibly derived from both phytoplankton and terrestrial vegetation could significantly influence the chemical properties of Arctic organic aerosols during a productive spring period. The interpretation of molecular changes in organic aerosols using an ultrahigh-resolution mass spectrometer could provide deep insight for understanding organic aerosols in the atmosphere over the Arctic and the relationship of organic aerosols with biogeochemical processes in terms of aerosol formation and environmental changes. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	air mass back trajectory; arctic organic aerosols; biological exposure; FT-ICR MS; transport history
语种	英语
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129706
作者单位	Biomedical Omics Center, Korea Basic Science Institute, Cheongju, South Korea; Division of Polar Climate Sciences, Korea Polar Research Institute, Incheon, South Korea; Department of Polar Science, University of Science and Technology, Daejeon, South Korea; Department of Environmental Science and Ecological Engineering, Korea University, Seoul, South Korea; Department of Chemistry “Ugo Schiff”, University of Florence, Florence, Italy; Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy; Department of Environmental Science and Analytical Chemistry, Stockholm University, Stockholm, Sweden; N.C.S.R. “Demokritos,” Environmental Radioactivity LaboratoryAttiki, Greece; Division of Bio-Analytical Science, University of Science and Technology, Daejeon, South Korea
推荐引用方式 GB/T 7714	Choi J.H.,Jang E.,Yoon Y.J.,et al. Influence of Biogenic Organics on the Chemical Composition of Arctic Aerosols[J],2019,33(10).
APA	Choi J.H..,Jang E..,Yoon Y.J..,Park J.Y..,Kim T.-W..,...&Jang K.S..(2019).Influence of Biogenic Organics on the Chemical Composition of Arctic Aerosols.Global Biogeochemical Cycles,33(10).
MLA	Choi J.H.,et al."Influence of Biogenic Organics on the Chemical Composition of Arctic Aerosols".Global Biogeochemical Cycles 33.10(2019).