Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism
文献类型：期刊论文
| 作者 | Ma, Wei ; Feng, Zemin; Zhan, Junlei; Liu, Yongchun; Liu, Pengfei; Liu, Chengtang; Ma, Qingxin; Yang, Kang; Wang, Yafei; He, Hong
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| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2022-04-12 |
| 卷号 | 22期号:7页码:4841-4851 |
| ISSN号 | 1680-7316 |
| 关键词 | YANGTZE-RIVER DELTA TYPICAL URBAN AREA GROUND-LEVEL OZONE MISSING OH SOURCE RADICAL CHEMISTRY HO2 CONCENTRATIONS RECEPTOR-SITE SURFACE OZONE CHINA POLLUTION |
| 英文摘要 | Volatile organic compounds (VOCs) tend to be consumed by atmospheric oxidants, resulting in substantial photochemical loss during transport. An observation-based model was used to evaluate the influence of photochemical loss of VOCs on the sensitivity regime and mechanisms of ozone formation. Our results showed that a VOC-limited regime based on observed VOC concentrations shifted to a transition regime with a photochemical initial concentration of VOCs (PIC-VOCs) in the morning. The net ozone formation rate was underestimated by 3 ppbh(-1) (similar to 36 ppb d(-1)) based on the measured VOCs when compared with the PIC-VOCs. The relative contribution of the RO2 path to ozone production based on the PIC-VOCs accordingly increased by 13.4 %; in particular, the contribution of alkene-derived RO(2 )increased by approximately 10.2 %. In addition, the OH-HO2 radical cycle was obviously accelerated by highly reactive alkenes after accounting for photochemical loss of VOCs. The contribution of local photochemistry might be underestimated for both local and regional ozone pollution if consumed VOCs are not accounted for, and policymaking on ozone pollution prevention should focus on VOCs with a high reactivity. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47414]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 作者单位 | 1.Beijing Univ Chem Technol, Aerosol & Haze Lab, Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 4.Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Wei,Feng, Zemin,Zhan, Junlei,et al. Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2022,22(7):4841-4851. |
| APA | Ma, Wei.,Feng, Zemin.,Zhan, Junlei.,Liu, Yongchun.,Liu, Pengfei.,...&Liu, Junfeng.(2022).Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(7),4841-4851. |
| MLA | Ma, Wei,et al."Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.7(2022):4841-4851. |
入库方式： OAI收割
来源：生态环境研究中心
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