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| DOI | 10.1038/s41561-022-00972-9 |
| Suppression of surface ozone by an aerosol-inhibited photochemical ozone regime | |
| Ivatt P.D.; Evans M.J.; Lewis A.C. | |
| 发表日期 | 2022 |
| ISSN | 1752-0894 |
| 起始页码 | 536 |
| 结束页码 | 540 |
| 卷号 | 15期号:7 |
| 英文摘要 | Atmospheric ozone (O3) is a pollutant produced through chemical chain reactions where volatile organic compounds (VOCs), carbon monoxide and methane are oxidized in the presence of oxides of nitrogen (NOx). For decades, the controlling chain termination step has been used to separate regions into either ‘NOx limited’ (peroxyl-radical self-reactions dominate) or ‘VOC limited’ (hydroxyl radical (OH) + nitrogen dioxide (NO2) reaction dominates). The controlling regime would then guide policies for reducing emissions and so O3 concentrations. Using a chemical transport model, we show that a third ‘aerosol inhibited’ regime exists, where reactive uptake of hydroperoxyl radicals (HO2) onto aerosol particles dominates. In 1970, 2% of the Northern Hemisphere population lived in an aerosol-inhibited regime, but by 2014 this had increased to 21%; 60% more than lived in a VOC-limited regime. Aerosol-inhibited chemistry suppressed surface O3 concentrations in North America and Europe in the 1970s and is currently suppressing surface O3 over Asia. This third photochemical O3 regime leads to potential trade-off tensions between reducing particle pollution in Asia (a key current health policy and priority) and increasing surface O3, should O3 precursors emissions not be reduced in tandem. © 2022, The Author(s). |
| 语种 | 英语 |
| scopus关键词 | aerosol; atmospheric pollution; carbon monoxide; hydroxyl radical; nitrogen dioxide; Northern Hemisphere; ozone; photochemistry; volatile organic compound; Asia; Europe; North America |
| 来源期刊 | Nature Geoscience
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/262169 |
| 作者单位 | Department of Chemistry, University of York, York, United Kingdom |
| 推荐引用方式 GB/T 7714 | Ivatt P.D.； Evans M.J.； Lewis A.C.. Suppression of surface ozone by an aerosol-inhibited photochemical ozone regime[J],2022,15(7). |
| APA | Ivatt P.D.； Evans M.J.； Lewis A.C..(2022).Suppression of surface ozone by an aerosol-inhibited photochemical ozone regime.Nature Geoscience,15(7). |
| MLA | Ivatt P.D.； Evans M.J.； Lewis A.C.."Suppression of surface ozone by an aerosol-inhibited photochemical ozone regime".Nature Geoscience 15.7(2022). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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