| 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 Author | Li, Guohui(ligh@ieecas.cn) |
| 2021-04-16 | |
| Source Publication | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| ISSN | 2169-897X |
| Volume | 126Issue:7Pages:18 |
| Abstract | The 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. |
| Keyword | atmospheric oxidizing capacity OH radical ozone WRF-Chem |
| DOI | 10.1029/2020JD033834 |
| WOS Keyword | ORGANIC AEROSOL CONCENTRATIONS ; TOTAL OH REACTIVITY ; PEARL RIVER DELTA ; RURAL SITE WANGDU ; OXIDATION CAPACITY ; MEXICO-CITY ; RADICAL CHEMISTRY ; WINTERTIME HAZE ; GUANZHONG BASIN ; OZONE FORMATION |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | National 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 Area | Meteorology & Atmospheric Sciences |
| Funding Organization | National 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 Subject | Meteorology & Atmospheric Sciences |
| WOS ID | WOS:000640969000008 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Li, Guohui |
| Affiliation | 1.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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