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Wintertime Optical Properties of Primary and Secondary Brown Carbon at a Regional Site in the North China Plain

文献类型：期刊论文

作者Wang, Qiyuan7,8; Ye, Jianhuai1; Wang, Yichen9; Zhang, Ting7,8; Ran, Weikang7; Wu, Yunfei2; Tian, Jie7,8; Li, Li7; Zhou, Yaqing7; Ho, Steven Sai Hang6
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期2019-11-05
卷号53期号:21页码:12389-12397
ISSN号0013-936X
DOI10.1021/acs.est.9b03406
通讯作者Wang, Qiyuan(wangqy@ieecas.cn) ; Cao, Junji(cao@loess.11qg.ac.cn)
英文摘要The light-absorbing properties of atmospheric brown carbon (BrC) are poorly understood due to its complex chemical composition. Here, a black-carbon-tracer method was coupled with source apportionments of organic aerosol (OA) to explore the light-absorbing properties of primary and secondary BrC from the North China Plain (NCP). Primary emissions of BrC contributed more to OA light absorption than secondary processes, and biomass burning OA accounted for 60% of primary BrC absorption at lambda = 370 nm, followed by coal combustion OA (35%) and hydrocarbon-like OA (5%). Secondary BrC absorption was high in the early morning and later decreased due to the bleaching of chromophores. Nighttime aqueous-phase chemistry promoted the formation of secondary light-absorbing compounds and the production of strongly absorbing particles. Source analysis showed that the NCP region was the most important source for primary and secondary BrC subtypes at the study site. The mean direct radiative forcing for BrC was 0.15 W m(-2) (0.11 W m(-2) and 0.04 W m(-2) for the primary and secondary fractions, respectively). This study provides new information on the optical properties of primary and secondary BrC and highlights the importance of atmospheric oxidation on BrC absorption.
资助项目National Research Program for Key Issues in Air Pollution Control[DQGG00105] ; Key Research and Development Program of Shaanxi Province[2018-ZDXM3-01] ; National Natural Science Foundation of China[41661144020] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2019402]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000495467500026
源URL[http://119.78.100.138/handle/2HOD01W0/10325]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Wang, Qiyuan; Cao, Junji
作者单位1.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
2.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate East A, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
4.Xian Univ Architecture & Technol, Key Lab Northwest Resource Environm & Ecol, MOE, Xian 710055, Shaanxi, Peoples R China
5.Xian Shiyou Univ, Shannxi Key Lab Measurement & Control Technol Oil, Xian 710065, Shaanxi, Peoples R China
6.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
7.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
8.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China
9.Northwestern Polytech Univ, Sch Humanities Econ & Law, Xian 710129, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Qiyuan,Ye, Jianhuai,Wang, Yichen,et al. Wintertime Optical Properties of Primary and Secondary Brown Carbon at a Regional Site in the North China Plain[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(21):12389-12397.
APA Wang, Qiyuan.,Ye, Jianhuai.,Wang, Yichen.,Zhang, Ting.,Ran, Weikang.,...&Cao, Junji.(2019).Wintertime Optical Properties of Primary and Secondary Brown Carbon at a Regional Site in the North China Plain.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(21),12389-12397.
MLA Wang, Qiyuan,et al."Wintertime Optical Properties of Primary and Secondary Brown Carbon at a Regional Site in the North China Plain".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.21(2019):12389-12397.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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