Unexpected fast radical production emerges in cool seasons: implications for ozone pollution control
Ozone is a crucial air pollutant that damages human health and vegetation. As it is related to the photo-oxidation of the nitrogen oxides and volatile organic compounds, the summertime reduction of these precursors is the primary focus of current ozone mitigation strategies. During ozone pollution e...
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| Format: | Article |
| Language: | English |
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Science Press
2022-04-01
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| Series: | National Science Open |
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| Online Access: | https://www.sciengine.com/doi/10.1360/nso/20220013 |
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| author | Wang Hongli Liu Yanhui Chen Xiaorui Gao Yaqin Qiu Wanyi Jing Shengao Wang Qian Lou Shengrong Edwards Peter M. Huang Cheng Lu Keding |
| author_facet | Wang Hongli Liu Yanhui Chen Xiaorui Gao Yaqin Qiu Wanyi Jing Shengao Wang Qian Lou Shengrong Edwards Peter M. Huang Cheng Lu Keding |
| author_sort | Wang Hongli |
| collection | DOAJ |
| description | Ozone is a crucial air pollutant that damages human health and vegetation. As it is related to the photo-oxidation of the nitrogen oxides and volatile organic compounds, the summertime reduction of these precursors is the primary focus of current ozone mitigation strategies. During ozone pollution episodes in eastern China, an observed accumulation of daily total oxidants (O<sub>x</sub>=NO<sub>2</sub>+O<sub>3</sub>) in cool seasons (spring and autumn: 60 ppb and winter 40 ppb) is comparable to that in summer (60 ppb), indicating fast photochemical production of secondary pollutants including ozone over the year. Unrecognized fast radical primary productions are found to counteract the increased termination of hydroxyl radical and unfavorable meteorological conditions to maintain the rapid total oxidant formations in cool seasons. Elucidating and regulating the primary radical sources may be critical for the secondary air pollution control in cool seasons. |
| format | Article |
| id | doaj-art-49d076158d67429b8ce887cecf59b43f |
| institution | DOAJ |
| issn | 2097-1168 |
| language | English |
| publishDate | 2022-04-01 |
| publisher | Science Press |
| record_format | Article |
| series | National Science Open |
| spelling | doaj-art-49d076158d67429b8ce887cecf59b43f2025-08-20T03:15:27ZengScience PressNational Science Open2097-11682022-04-01110.1360/nso/20220013eb33e642Unexpected fast radical production emerges in cool seasons: implications for ozone pollution controlWang Hongli0Liu Yanhui1Chen Xiaorui2Gao Yaqin3Qiu Wanyi4Jing Shengao5Wang Qian6Lou Shengrong7Edwards Peter M.8Huang Cheng9Lu Keding10["State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China"]["State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China"]["State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China"]["State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China"]["State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China"]["State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China"]["State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China"]["State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China"]["Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York YO1 7EP, UK"]["State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China"]["State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China"]Ozone is a crucial air pollutant that damages human health and vegetation. As it is related to the photo-oxidation of the nitrogen oxides and volatile organic compounds, the summertime reduction of these precursors is the primary focus of current ozone mitigation strategies. During ozone pollution episodes in eastern China, an observed accumulation of daily total oxidants (O<sub>x</sub>=NO<sub>2</sub>+O<sub>3</sub>) in cool seasons (spring and autumn: 60 ppb and winter 40 ppb) is comparable to that in summer (60 ppb), indicating fast photochemical production of secondary pollutants including ozone over the year. Unrecognized fast radical primary productions are found to counteract the increased termination of hydroxyl radical and unfavorable meteorological conditions to maintain the rapid total oxidant formations in cool seasons. Elucidating and regulating the primary radical sources may be critical for the secondary air pollution control in cool seasons.https://www.sciengine.com/doi/10.1360/nso/20220013OH radicalphotochemistryVOCsozoneair pollution |
| spellingShingle | Wang Hongli Liu Yanhui Chen Xiaorui Gao Yaqin Qiu Wanyi Jing Shengao Wang Qian Lou Shengrong Edwards Peter M. Huang Cheng Lu Keding Unexpected fast radical production emerges in cool seasons: implications for ozone pollution control National Science Open OH radical photochemistry VOCs ozone air pollution |
| title | Unexpected fast radical production emerges in cool seasons: implications for ozone pollution control |
| title_full | Unexpected fast radical production emerges in cool seasons: implications for ozone pollution control |
| title_fullStr | Unexpected fast radical production emerges in cool seasons: implications for ozone pollution control |
| title_full_unstemmed | Unexpected fast radical production emerges in cool seasons: implications for ozone pollution control |
| title_short | Unexpected fast radical production emerges in cool seasons: implications for ozone pollution control |
| title_sort | unexpected fast radical production emerges in cool seasons implications for ozone pollution control |
| topic | OH radical photochemistry VOCs ozone air pollution |
| url | https://www.sciengine.com/doi/10.1360/nso/20220013 |
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