Unveiling 3-D evolution and mechanisms of ozone pollution in Changzhou, China: Insights from lidar observations and modelling☆
文献类型：期刊论文
| 作者 | Liu, ZhiQiang2,3; Xiang, Yan1; Pan, Ying4; Zhang, Tianshu4 ; Xu, WenLong2; Li, Li3
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| 刊名 | ENVIRONMENTAL POLLUTION
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| 出版日期 | 2024-10-15 |
| 卷号 | 359 |
| 关键词 | Ozone Vertical distribution WRF-Chem Lidar Lake-land breeze |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2024.124556 |
| 通讯作者 | Xiang, Yan(yxiang@ahu.edu.cn) ; Li, Li(lily@shu.edu.cn) |
| 英文摘要 | Ground ozone (O3) pollution has emerged as a prominent environmental concern in eastern cities of China, particularly during the summer and autumn seasons. However, a comprehensive investigation into the threedimensional (3-D) evolution characteristics of O3 within complicated urban environments, especially in lakeland environment, is notably scarce. To enhance our understanding of the mechanisms underlying elevated O3 concentrations within a 3-D scale, this study employed an ozone lidar to delineate vertical ozone profiles in Changzhou, a typical city in China with complicated anthropogenic and biogenic emissions and complex land cover. The process analysis tool integrated into the Weather Research and Forecasting with Chemistry (WRFChem) model was further utilized to analyze the formation processes of O3. The results unveil a persistent O3 pollution episode lasting over 15 days in Changzhou during the study period, with multiple peaks exceeding 200 mu g m-3. Notably, O3 predominantly accumulated within the boundary layer, confined below 1.2 km. Both ground and vertical contributions to this pollution were mainly due to local chemical reactions, with a maximum nearsurface contribution reaching 19 ppb h- 1 and a vertical contribution of 10 ppb h- 1 at the height of 900 +/- 200 m. Furthermore, episodes of the enhanced O3 concentrations on August 9 and August 26, 2021, were influenced by external advection process. Our study also found that local circulation plays an important role in the accumulation of surface O3 during certain periods. There was a temperature difference between the surface of Lake Tai and the adjacent land, resulting in the formation of lake-land breezes that facilitate the transport of O3 from the lake surface to the terrestrial environment during pollution events. Our study emphasizes the necessity of reducing local pollutant emissions and implementing joint emission controls as the primary strategies for mitigating O3 pollution in Changzhou and the surrounding region. |
| WOS关键词 | RIVER DELTA ; URBAN ; IMPACT ; ASSIMILATION ; PROVINCE |
| 资助项目 | National Key R & D Program of China[2022YFC3704000] ; National Key R & D Program of China[2022YFC3700400] ; National Natural Science Foundation of China[42375102] ; National Natural Science Foundation of China[42075144] ; Changzhou Science and technology support plan[CE20235030] ; Key R & D Project in Shanxi Province[202202150401009] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001275605000001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key R & D Program of China ; National Natural Science Foundation of China ; Changzhou Science and technology support plan ; Key R & D Project in Shanxi Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/137240]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xiang, Yan; Li, Li |
| 作者单位 | 1.Anhui Univ, Inst Phys Sci & Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Peoples R China 2.Jiangsu Changhuan Environm Technol Co Ltd, Changzhou 213002, Peoples R China 3.Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, ZhiQiang,Xiang, Yan,Pan, Ying,et al. Unveiling 3-D evolution and mechanisms of ozone pollution in Changzhou, China: Insights from lidar observations and modelling☆[J]. ENVIRONMENTAL POLLUTION,2024,359. |
| APA | Liu, ZhiQiang,Xiang, Yan,Pan, Ying,Zhang, Tianshu,Xu, WenLong,&Li, Li.(2024).Unveiling 3-D evolution and mechanisms of ozone pollution in Changzhou, China: Insights from lidar observations and modelling☆.ENVIRONMENTAL POLLUTION,359. |
| MLA | Liu, ZhiQiang,et al."Unveiling 3-D evolution and mechanisms of ozone pollution in Changzhou, China: Insights from lidar observations and modelling☆".ENVIRONMENTAL POLLUTION 359(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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