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Assessment of Atmospheric Oxidizing Capacity Over the Beijing-Tianjin-Hebei (BTH) Area, China
Feng, Tian1,3; Zhao, Shuyu2; Hu, Bo4; Bei, Naifang5; Zhang, Xiu1; Wu, Jiarui2; Li, Xia2; Liu, Lang2; Wang, Ruonan2; Tie, Xuexi2; Li, Guohui2,6
Corresponding AuthorLi, Guohui(ligh@ieecas.cn)
2021-04-16
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
Volume126Issue:7Pages:18
AbstractThe atmospheric oxidizing capacity (AOC) plays a key role in atmospheric chemistry, determining the removal of most reduced gases in the atmosphere. In this study, we assess the summertime AOC from 7 to 22 June 2014 associated with a field campaign conducted at Wangdu in the Beijing-Tianjin-Hebei region (BTH), China using the WRF-Chem model. The model reasonably well reproduces the incident solar radiation, ambient O-3 and fine particulate matter (PM2.5) concentrations, the photolysis rates of O-3 and NO2, and radical concentrations against measurements in the BTH. The model results show high daytime AOC levels in urban areas and relatively low AOC in remote areas of the BTH. The diurnal cycle of the AOC exhibits a unimodal pattern with peaks at noon. OH radical contributes about 68% of the daily average AOC in Beijing, followed by O-3 (27%) and NO3 (5%). At Wangdu, the production rate of OH radical reaches around 13 ppb h(-1) at noon, which is mainly resulted from the reaction of HO2 with NO. The OH radical loss is primarily contributed by reactions with volatile organic compounds, followed by CO and NO2. Statistically, the population hourly or afternoon average O-3 and O-x (=O-3 + NO2) concentrations are significantly correlated with the AOC in Beijing, constituting potential simplified tracers to indicate the AOC level.
Keywordatmospheric oxidizing capacity OH radical ozone WRF-Chem
DOI10.1029/2020JD033834
WOS KeywordORGANIC AEROSOL CONCENTRATIONS ; TOTAL OH REACTIVITY ; PEARL RIVER DELTA ; RURAL SITE WANGDU ; OXIDATION CAPACITY ; MEXICO-CITY ; RADICAL CHEMISTRY ; WINTERTIME HAZE ; GUANZHONG BASIN ; OZONE FORMATION
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41703127] ; National Natural Science Foundation of China[41430424] ; National Natural Science Foundation of China[41661144020] ; Natural Science Foundation of Zhejiang Province[LZ20D050001] ; National Key R&D Plan (Quantitative Relationship and Regulation Principle between Regional Oxidation Capacity of Atmospheric and Air Quality)[2017YFC0210000] ; K. C. Wong Magna Fund in Ningbo University
WOS Research AreaMeteorology & Atmospheric Sciences
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province ; National Key R&D Plan (Quantitative Relationship and Regulation Principle between Regional Oxidation Capacity of Atmospheric and Air Quality) ; K. C. Wong Magna Fund in Ningbo University
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000640969000008
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16434
Collection粉尘与环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorLi, Guohui
Affiliation1.Ningbo Univ, Dept Geog & Spatial Informat Tech, Ningbo, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian, Peoples R China
3.Ningbo Univ, Inst East China Sea, Ningbo, Peoples R China
4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing, Peoples R China
5.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Peoples R China
6.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
Recommended Citation
GB/T 7714
Feng, Tian,Zhao, Shuyu,Hu, Bo,et al. Assessment of Atmospheric Oxidizing Capacity Over the Beijing-Tianjin-Hebei (BTH) Area, China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2021,126(7):18.
APA Feng, Tian.,Zhao, Shuyu.,Hu, Bo.,Bei, Naifang.,Zhang, Xiu.,...&Li, Guohui.(2021).Assessment of Atmospheric Oxidizing Capacity Over the Beijing-Tianjin-Hebei (BTH) Area, China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,126(7),18.
MLA Feng, Tian,et al."Assessment of Atmospheric Oxidizing Capacity Over the Beijing-Tianjin-Hebei (BTH) Area, China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 126.7(2021):18.
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