globalchange  > 气候变化与战略
DOI: 10.1029/2019GB006226
论文题名:
Influence of Biogenic Organics on the Chemical Composition of Arctic Aerosols
作者: 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.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2019
卷: 33, 期:10
语种: 英语
学科: air mass back trajectory ; arctic organic aerosols ; biological exposure ; FT-ICR MS ; transport history
中文摘要: 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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160101
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Choi J.H.,Jang E.,Yoon Y.J.,et al. Influence of Biogenic Organics on the Chemical Composition of Arctic Aerosols[J]. Global Biogeochemical Cycles,2019-01-01,33(10)
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