Seasonal dynamics of airborne biomolecules influence the size distribution of Arctic aerosols

作     者：Eunho Jang Ki-Tae Park Young Jun Yoon Kyoung-Soon Jang Min Sung Kim Kitae Kim Hyun Young Chung Mauro Mazzola David Cappelletti Bang Yong Lee 

作者机构：Korea Polar Research Institute(KOPRI)Incheon21990Republic of Korea University of Science and Technology(UST)Daejeon34113Republic of Korea Department of Environmental Sciences and BiotechnologyHallym UniversityChuncheonGangwon-do24252Republic of Korea Korea Basic Science Institute(KBSI)Cheongju28119Republic of Korea National Research Council of ItalyInstitute of Polar Sciences(CNR-ISP)Via Gobetti 101Bologna40129Italy Department of ChemistryBiology and BiotechnologyUniversity of PerugiaVia Elce di Sotto 8Perugia06123Italy 

出 版 物：《Environmental Science and Ecotechnology》 (环境科学与生态技术（英文）)

年 卷 期：2024年第22卷第6期

页      面：245-255页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：National Research Foundation(NRF)of Korea NRF-2021M1A5A1065425(KOPRI-PN24011) The FT-ICR MS analysis was supported by the Korea Basic Science Institute under the R&D program(Project No.C330430)supervised by the Ministry of Science and ICT 

主　　题：Organic aerosol FT-ICR MS Particle size distribution Atmospheric transport pattern Biomolecule 

摘      要：Organic matter is crucial in aerosol-climate interactions,yet the physicochemical properties and origins of organic aerosols remain poorly *** we show the seasonal characteristics of submicron organic aerosols in Arctic Svalbard during spring and summer,emphasizing their connection to transport patterns and particle size ***-derived organic matter(MOM)and terrestrial-derived organic matter(TOM)accounted for over 90%of the total organic mass in Arctic aerosols during these seasons,comprising carbohydrate/protein-like and lignin/tannin-like compounds,*** spring,aerosols showed high TOM and low MOM intensities due to biomass-burning influx in the central *** contrast,summer exhibited elevated MOM intensity,attributed to the shift in predominant atmospheric transport from the central Arctic to the biologically active Greenland *** and TOM were associated with Aitken mode particles(100 nm diameter),*** association is linked to the molecular size of biomolecules,impacting the number concentrations of corresponding aerosol *** findings highlight the importance of considering seasonal atmospheric transport patterns and organic source-dependent particle size distributions in assessing aerosol properties in the changing Arctic.