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Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications

文献类型：期刊论文

作者Tang, Mingjin2,3,4,5; Zhang, Huanhuan2,3,4; Gu, Wenjun2,3,4; Gao, Jie6; Jian, Xing7; Shi, Guoliang6; Zhu, Bingqi8; Xie, Luhua9; Guo, Liya2,3,4; Gao, Xiaoyan2,3
刊名JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
出版日期2019-10-18
页码14
关键词mineral dust hygroscopicity chemical composition mineralogical composition ISORROPIA
ISSN号2169-897X
DOI10.1029/2019JD031128
通讯作者Tang, Mingjin(mingjintang@gig.ac.cn)
英文摘要Saline mineral dust particles, emitted from saline topsoil in arid and semiarid regions, contribute significantly to tropospheric aerosol particles. However, hygroscopic properties of saline mineral dust particles, especially for those found in regions other than North America, are poorly understood. In this work we investigated hygroscopic properties of 13 saline mineral dust samples collected from different locations via measuring sample mass change at different relative humidity (RH; up to 90%), and measured their chemical and mineralogical compositions using ion chromatography and X-ray diffraction. The mass growth factors at 90% RH, defined as the sample mass at 90% RH relative to that at <1% RH, were found to display large geographical variations, spanning from similar to 1.02 to 6.7, and the corresponding single hygroscopicity parameters (kappa) were derived to be in the range of 1.0. The saline components (mainly Na+, Cl-, and SO42-) contained by saline mineral dust particles largely determined their hygroscopicity, and the predicted mass growth factors at 90% RH using an aerosol thermodynamic model (ISORROPIA-II), agreed with measured values within 20% for most of samples examined, although larger discrepancies also occurred for three samples. Our results improve our understanding in hygroscopicity of saline mineral dust particles and thus their heterogeneous chemistry and ability to serve as cloud condensation nuclei to form cloud droplets.
WOS关键词ASIAN DUST ; WATER-ADSORPTION ; CLOUD CONDENSATION ; MIXING STATE ; DESERT DUST ; N2O5 UPTAKE ; PARTICLES ; MODEL ; CHEMISTRY ; AEROSOLS
资助项目National Natural Science Foundation of China[91744204] ; National Natural Science Foundation of China[91644106] ; National Natural Science Foundation of China[41673009] ; Chinese Academy of Sciences[132744KYSB20160036] ; State Key Laboratory of Organic Geochemistry[SKLOG2016-A05] ; Guangdong Foundation for Program of Science and Technology Research[2017B030314057] ; CAS Pioneer Hundred Talents program
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000491312800001
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences ; State Key Laboratory of Organic Geochemistry ; Guangdong Foundation for Program of Science and Technology Research ; CAS Pioneer Hundred Talents program
源URL[http://ir.igsnrr.ac.cn/handle/311030/129868]  
专题中国科学院地理科学与资源研究所
通讯作者Tang, Mingjin
作者单位1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Guangdong, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen, Fujian, Peoples R China
6.Nankai Univ, Coll Environm Sci & Engn, State Environm Protect Key Lab Urban Ambient Air, Tianjin, Peoples R China
7.Xiamen Univ, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen, Fujian, Peoples R China
8.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
9.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Mingjin,Zhang, Huanhuan,Gu, Wenjun,et al. Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019:14.
APA Tang, Mingjin.,Zhang, Huanhuan.,Gu, Wenjun.,Gao, Jie.,Jian, Xing.,...&Wang, Xinming.(2019).Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,14.
MLA Tang, Mingjin,et al."Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2019):14.

入库方式： OAI收割

来源：地理科学与资源研究所

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