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Unraveling the process of aerosols secondary formation and removal based on cosmogenic beryllium-7 and beryllium-10

文献类型：期刊论文

作者Liu, Xuke2,3,4,5; Fu, Yunchong1,4,5; Wang, Qiyuan5; Bi, Yanting2; Zhang, Li4,5; Zhao, Guoqing4,5; Xian, Feng4,5; Cheng, Peng1,4,5; Zhang, Luyuan4,5; Zhou, Jiamao5
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2022-05-15
卷号821页码:9
ISSN号0048-9697
关键词PM2.5 Be-7 Be-10 Secondary aerosol Rain washout Stratospheric air intrusion
DOI10.1016/j.scitotenv.2022.153293
通讯作者Fu, Yunchong(fuyc@ieecas.cn) ; Zhou, Weijian(weijian@loess.llqg.ac.cn)
英文摘要The secondary formation and diffusion processes of aerosol are extraordinarily complex and significantly impact the environment and human health. Therefore, exploring the process of aerosol formation and diffusion based on independent new tracer has always been a concern. The Be-7 and Be-10, which are generated only by the action of cosmic rays, are chemically stable and adsorbed on aerosol for transmission, so they have the potential characteristics of aerosol tracers. Here, we obtained the daily resolution atmospheric Be-7, Be-10, and Be-10/Be-7 without dust interference in Xi'an autumn and winter (heavy pollution period in a typical polluted area) by accelerator mass spectrometry. It is found that during the rapid formation of secondary aerosols (SA) under the stable Be-10/Be-7 ratio, which indicates the stable atmospheric vertical structure, the concentration of Be-7 and Be-10 is significantly negatively correlated (R-2 > 0.9) with the aerosol concentration. Therefore, SA relative content in aerosols can be estimated by the dilution amount of Be-7 and Be-10 to reveal the secondary-formation process of aerosol (33% average contribution to aerosols during the winter heavy air pollution period). Furthermore, we also revealed the physical removal process of aerosols based on Be-7, Be-10, and Be-10/Be-7, including precipitation removal and diffusion of vertical atmospheric movement caused by stratospheric air intrusion. In summary, meteoric cosmogenic 7Be and 10Be will provide a new way to study the secondary chemical formation and physical removal of aerosols.
WOS关键词AIR-POLLUTION ; METEOROLOGICAL CONDITIONS ; ATMOSPHERIC DEPOSITION ; CHEMICAL-COMPOSITION ; GUANZHONG BASIN ; HAZE ; TRANSPORT ; PB-210 ; PM2.5 ; DUST
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China[11975240] ; Youth Innovation Promotion Association CAS
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:000766810600009
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
源URL[http://ir.ieecas.cn/handle/361006/17553]  
专题地球环境研究所_加速器质谱中心
通讯作者Fu, Yunchong; Zhou, Weijian
作者单位1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
2.Xian Earth Environm Innovat Res Inst, Xian 710061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Xian AMS Ctr IEECAS, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China
5.Chinese Acad Sci IEECAS, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xuke,Fu, Yunchong,Wang, Qiyuan,et al. Unraveling the process of aerosols secondary formation and removal based on cosmogenic beryllium-7 and beryllium-10[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,821:9.
APA Liu, Xuke.,Fu, Yunchong.,Wang, Qiyuan.,Bi, Yanting.,Zhang, Li.,...&Zhou, Weijian.(2022).Unraveling the process of aerosols secondary formation and removal based on cosmogenic beryllium-7 and beryllium-10.SCIENCE OF THE TOTAL ENVIRONMENT,821,9.
MLA Liu, Xuke,et al."Unraveling the process of aerosols secondary formation and removal based on cosmogenic beryllium-7 and beryllium-10".SCIENCE OF THE TOTAL ENVIRONMENT 821(2022):9.

入库方式： OAI收割

来源：地球环境研究所

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