Roles of photochemical consumption of VOCs on regional background O3 concentration and atmospheric reactivity over the pearl river estuary, Southern China
文献类型：期刊论文
| 作者 | Sun, Jiayin1,2; Yu, Xiaoyu1,2; Ling, Zhenhao1,2; Fang, Guizhen3,4; Ming, Lili5; Zhao, Jun1,2; Zou, Shichun3,4; Guan, Huatian1,2; Wang, Haichao1,2; Wang, Xuemei6 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-06-10 |
| 卷号 | 928页码:10 |
| 关键词 | Volatile organic compounds Regional background O3 concentration Atmospheric reactivity Pearl River Estuary |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.172321 |
| 英文摘要 | Understanding of the photochemical ozone (O3) pollution over the Pearl River Estuary (PRE) of southern China remains limited. We performed an in-depth analysis of volatile organic compounds (VOCs) data collected on an island (i.e., the Da Wan Shan Island, DWS) located at the downwind of Pearl River Delta (PRD) from 26 November to 15 December 2021. Abundances of O3 and its precursors were measured when the air masses originated from the inland PRD. We observed that the VOCs levels at the DWS site were lower, while the mixing ratio of O3 was higher, compared to those reported at inland PRD, indicating the occurrence of photochemical consumption of VOCs during the air masses transport, which was further confirmed by the composition and diurnal variations of VOCs, as well as ratios of specific VOCs. The simulation results from a photochemical box model showed that the O3 level in the outflow air masses of inland PRD (O3(out-flow)) was the dominant factor leading to the intensification of O3 pollution and the enhancement of atmospheric radical concentrations (ARC) over PRE, which was mainly contributed by the O3 production via photochemical consumption of VOCs during air masses transport. Overall, our findings provided direct quantitative evidence for the roles of outflow O3 and its precursors from inland PRD on O3 abundance and ARC over the PRE area, highlighting that alleviation of O3 pollution over PRE should focus on the impact of photochemical loss of VOCs in the outflow air masses from inland PRD. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001286177700001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78660]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Ling, Zhenhao; Tham, Yee Jun |
| 作者单位 | 1.Sun Yat Sen Univ, Sch Atmospher Sci, Key Lab Trop Atmosphere Ocean Syst, Minist Educ, Zhuhai, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China 3.Sun Yat Sen Univ, Sch Marine Sci, Zhuhai, Peoples R China 4.Minist Educ, Pearl River Estuary Marine Ecosyst Res Stn, Zhuhai, Peoples R China 5.Tech Ctr Gongbei Customs Dist China, Zhuhai, Peoples R China 6.Jinan Univ, Coll Environm & Climate, Guangdong Hongkong Macau Joint Lab Collaborat Inno, Guangzhou, Peoples R China 7.Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Hong Kong, Peoples R China 8.Beijing Normal Univ, Instrumentat & Serv Ctr Sci & Technol, Zhuhai, Peoples R China 9.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 10.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jiayin,Yu, Xiaoyu,Ling, Zhenhao,et al. Roles of photochemical consumption of VOCs on regional background O3 concentration and atmospheric reactivity over the pearl river estuary, Southern China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,928:10. |
| APA | Sun, Jiayin.,Yu, Xiaoyu.,Ling, Zhenhao.,Fang, Guizhen.,Ming, Lili.,...&Zhang, Yanli.(2024).Roles of photochemical consumption of VOCs on regional background O3 concentration and atmospheric reactivity over the pearl river estuary, Southern China.SCIENCE OF THE TOTAL ENVIRONMENT,928,10. |
| MLA | Sun, Jiayin,et al."Roles of photochemical consumption of VOCs on regional background O3 concentration and atmospheric reactivity over the pearl river estuary, Southern China".SCIENCE OF THE TOTAL ENVIRONMENT 928(2024):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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