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Increasing wintertime ozone levels and secondary aerosol formation in the Guanzhong basin, central China
Feng, Tian1,3; Zhao, Shuyu2; Zhang, Xiu1; Wang, Qiyuan2; Liu, Lang2; Li, Guohui2; Tie, Xuexi2
通讯作者Feng, Tian(fengtian@nbu.edu.cn)
2020-11-25
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
卷号745页码:12
摘要The observed near-surface ozone (O-3) concentration has been remarkably increasing during recent years in winter in the Guanzhong basin, central China, showing a continuous enhancement of the atmospheric oxidizing capacity (AOC). The impact of such a change in the AOC on secondary aerosol formation, however, has not yet been assessed. In this study, we simulate the formation of O-3 and airborne particles in the atmosphere using the WRF-Chem model, in which the AOC is calculated quantitatively, to understand the responses of secondary aerosols to the AOC increase. Meteorological observations, air pollutants including O-3, NO2, SO2, CO, and PM2.5 concentrations at ambient monitoring sites, and the main compositions of submicron particulates measured using ACSM are used to constrain the model simulation. The model result shows that the population hourly and postmeridian O-x (=O-3 + NO3) concentrations are good indicators for the wintertime AOC in the basin, suggested by the significantly positive correlations between them. Sensitivity experiments present that the AOC changes may exert important influences on line particle (PM2.5) concentration with an average rate of 1.94 (mu g m(-3))/(10(6) cm(-3) s(-1)) for Delta(PM2.5)/Delta(AOC), which is mostly caused by the mass changes in secondary organic aerosol (43%) and nitrate aerosol (40%) and less attributed to the ammonium (11%) and sulfate (6%) components. (C) 2020 Published by Elsevier B.V.
关键词Ozone Atmospheric oxidizing capacity Secondary aerosols WRF-Chem
DOI10.1016/j.scitotenv.2020.140961
关键词[WOS]RURAL SITE WANGDU ; MEXICO-CITY ; SUMMERTIME OZONE ; OXIDATION CAPACITY ; NITRATE FORMATION ; SURFACE OZONE ; HAZE DAYS ; MODEL ; IMPACTS ; EMISSIONS
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China[41703127] ; Natural Science Foundation of Zhejiang Province[LZ20D050001] ; K. C. Wong Magna Fund in Ningbo University
WOS研究方向Environmental Sciences & Ecology
项目资助者National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province ; K. C. Wong Magna Fund in Ningbo University
WOS类目Environmental Sciences
WOS记录号WOS:000579365600126
出版者ELSEVIER
引用统计
被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/15416
专题粉尘与环境研究室
通讯作者Feng, Tian
作者单位1.Ningbo Univ, Dept Geog & Spatial Informat Tech, Ningbo 315211, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian 710061, Shaanxi, Peoples R China
3.Ningbo Univ, Inst East China Sea, Ningbo 315211, Zhejiang, Peoples R China
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GB/T 7714
Feng, Tian,Zhao, Shuyu,Zhang, Xiu,et al. Increasing wintertime ozone levels and secondary aerosol formation in the Guanzhong basin, central China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,745:12.
APA Feng, Tian.,Zhao, Shuyu.,Zhang, Xiu.,Wang, Qiyuan.,Liu, Lang.,...&Tie, Xuexi.(2020).Increasing wintertime ozone levels and secondary aerosol formation in the Guanzhong basin, central China.SCIENCE OF THE TOTAL ENVIRONMENT,745,12.
MLA Feng, Tian,et al."Increasing wintertime ozone levels and secondary aerosol formation in the Guanzhong basin, central China".SCIENCE OF THE TOTAL ENVIRONMENT 745(2020):12.
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