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

doi:10.1016/j.scitotenv.2022.153293

IEECAS OpenIR > 加速器质谱中心

	Unraveling the process of aerosols secondary formation and removal based on cosmogenic beryllium-7 and beryllium-10
	Liu, Xuke 1,2,3,4; Fu, Yunchong1,2,5 ; Wang, Qiyuan 1; Bi, Yanting 4; Zhang, Li 1,2; Zhao, Guoqing 1,2; Xian, Feng 1,2; Cheng, Peng 1,2,5; Zhang, Luyuan 1,2; Zhou, Jiamao 1; Zhou, Weijian 1,2,4,5
通讯作者	Fu, Yunchong(fuyc@ieecas.cn) ; Zhou, Weijian(weijian@loess.llqg.ac.cn)
	2022-05-15
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	821 页码:9
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.
关键词	PM2.5 Be-7 Be-10 Secondary aerosol Rain washout Stratospheric air intrusion
DOI	10.1016/j.scitotenv.2022.153293
关键词[WOS]	AIR-POLLUTION ; METEOROLOGICAL CONDITIONS ; ATMOSPHERIC DEPOSITION ; CHEMICAL-COMPOSITION ; GUANZHONG BASIN ; HAZE ; TRANSPORT ; PB-210 ; PM2.5 ; DUST
收录类别	SCI ; SCI
语种	英语
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
项目资助者	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
WOS类目	Environmental Sciences
WOS记录号	WOS:000766810600009
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17554
专题	加速器质谱中心
通讯作者	Fu, Yunchong; Zhou, Weijian
作者单位	1.Chinese Acad Sci IEECAS, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Xian AMS Ctr IEECAS, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Xian Earth Environm Innovat Res Inst, Xian 710061, Peoples R China 5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, 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.