干旱区生态环境知识资源中心(Arid): Water-soluble brown carbon in atmospheric aerosols along the transport pathway of Asian dust: Optical properties, chemical compositions, and potential sources

Arid

DOI	10.1016/j.scitotenv.2021.147971
	Water-soluble brown carbon in atmospheric aerosols along the transport pathway of Asian dust: Optical properties, chemical compositions, and potential sources
	Wen, Hui; Zhou, Yue; Xu, Xuanye; Wang, Tianshuang; Chen, Quanliang; Chen, Qingcai; Li, Weijun; Wang, Zhe; Huang, Zhongwei; Zhou, Tian; Shi, Jinsen; Bi, Jianrong; Ji, Mingxia; Wang, Xin
通讯作者	Wang, X (corresponding author), Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China. ; Wang, X (corresponding author), Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	789
英文摘要	As an important type of light-absorbing aerosol, brown carbon (BrC) has the potential to affect the atmospheric photochemistry and Earth's energy budget. A comprehensive field campaign was carried out along the transport pathway of Asian dust during the spring of 2016, including a desert site (Erenhot), a rural site (Zhangbei), and an urban site (Jinan), in northern China. Optical properties, bulk chemical compositions, and potential sources of water-soluble brown carbon (WS-BrC) were investigated in atmospheric total suspended particulate (TSP) samples. Samples from Zhangbei had higher mass absorption efficiency at 365 nm (MAE(365), 132 +/- 0.34 m(2) g(-1)) than those from Jinan (1.00 +/- 023 m(2) g(-1)) and Erenhot (0.84 +/- 0.30 m(2) g(-1)). Compere to the non-dust samples, elevated water-soluble organic carbon (WSOC) concentrations and MAE 365 values of dust samples from Erenhot are related to the input of high molecular weight organic compounds and biogenic matter from the Gobi Desert, while lower values from Zhangbei and Jinan are attributed to the dilution effect caused by strong northwesterly winds. Based on fluorescence excitation-emission matrix spectra and parallel factor analysis, two humic-like (C1 and C2) and two protein-like (C3 and C4) substances were identified. Together, C1 and C2 accounted for similar to 64% of total fluorescence intensity at the highly polluted urban Jinan site; C3 represented similar to 45% at the rural Zhangbei site where local biomass burning affects; and C4 contributed similar to 24% in the desert region (Erenhot) due to dust-sourced biogenic substances. The relative absorptive forcing of WS-BrC compared to black carbon at 300-400 nm was about 31.3%, 13.9%, and 9.2% during non-dust periods at Erenhot, Zhangbei, and Jinan, respectively, highlighting that WS-BrC may significantly affect the radiative balance of Earth's climate system and should be included in radiative forcing models. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Brown carbon Fluorescence excitation-emission matrix spectra PARAFAC Source apportionment Radiative forcing efficiency
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000680196300010
WOS关键词	DISSOLVED ORGANIC-MATTER ; EMISSION MATRIX FLUORESCENCE ; LIGHT-ABSORPTION PROPERTIES ; BIOMASS BURNING EMISSIONS ; HUMIC-LIKE SUBSTANCES ; ELEMENTAL CARBON ; SIZE DISTRIBUTION ; MOLECULAR CHARACTERIZATION ; SOURCE APPORTIONMENT ; COAL COMBUSTION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364564
作者单位	[Wen, Hui; Zhou, Yue; Wang, Tianshuang; Huang, Zhongwei; Zhou, Tian; Shi, Jinsen; Bi, Jianrong; Ji, Mingxia; Wang, Xin] Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China; [Wen, Hui; Wang, Xin] Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; [Xu, Xuanye; Chen, Quanliang] Chengdu Univ Informat Technol, Coll Atmospher Sci, Chengdu 610225, Peoples R China; [Chen, Qingcai] Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Peoples R China; [Li, Weijun] Zhejiang Univ, Sch Earth Sci, Dept Atmospher Sci, Hangzhou 320007, Peoples R China; [Wang, Zhe] Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Wen, Hui,Zhou, Yue,Xu, Xuanye,et al. Water-soluble brown carbon in atmospheric aerosols along the transport pathway of Asian dust: Optical properties, chemical compositions, and potential sources[J]. 兰州大学,2021,789.
APA	Wen, Hui.,Zhou, Yue.,Xu, Xuanye.,Wang, Tianshuang.,Chen, Quanliang.,...&Wang, Xin.(2021).Water-soluble brown carbon in atmospheric aerosols along the transport pathway of Asian dust: Optical properties, chemical compositions, and potential sources.SCIENCE OF THE TOTAL ENVIRONMENT,789.
MLA	Wen, Hui,et al."Water-soluble brown carbon in atmospheric aerosols along the transport pathway of Asian dust: Optical properties, chemical compositions, and potential sources".SCIENCE OF THE TOTAL ENVIRONMENT 789(2021).