Development of ozone reactivity scales for volatile organic compounds in a Chinese megacity
<p>We developed incremental reactivity (IR) scales for 116 volatile organic compounds (VOCs) in a Chinese megacity (Guangzhou) and elucidated their application in calculating the ozone (<span class="inline-formula">O<sub>3</sub></span>) formation potential (OF...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2021-07-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/21/11053/2021/acp-21-11053-2021.pdf |
| _version_ | 1818655247384444928 |
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| author | Y. Zhang L. Xue L. Xue W. P. L. Carter C. Pei C. Pei C. Pei C. Pei T. Chen J. Mu Y. Wang Q. Zhang W. Wang |
| author_facet | Y. Zhang L. Xue L. Xue W. P. L. Carter C. Pei C. Pei C. Pei C. Pei T. Chen J. Mu Y. Wang Q. Zhang W. Wang |
| author_sort | Y. Zhang |
| collection | DOAJ |
| description | <p>We developed incremental reactivity (IR) scales for 116 volatile organic compounds (VOCs) in a Chinese megacity (Guangzhou) and elucidated their
application in calculating the ozone (<span class="inline-formula">O<sub>3</sub></span>) formation potential (OFP) in China. Two sets of model inputs (emission-based and observation-based) were designed to localize the IR scales in Guangzhou using the Master Chemical Mechanism (MCM) box model and were also compared with those of the US. The two inputs differed in how primary pollutant inputs in the model were derived, with one based on emission data and the
other based on observed pollutant levels, but the maximum incremental reactivity (MIR) scales derived from them were fairly similar. The IR scales showed a strong dependence on the chemical mechanism (MCM vs. Statewide Air Pollution Research Center), and a higher consistency was found in IR scales between China and the US using a similar chemical mechanism. With a given chemical mechanism, the MIR scale for most VOCs showed a relatively small dependence on environmental conditions. However, when the <span class="inline-formula">NO<sub><i>x</i></sub></span> availability decreased, the IR scales became more sensitive to environmental conditions and the discrepancy between the IR scales obtained from emission-based and observation-based inputs increased, thereby implying the necessity to localize IR scales over mixed-limited or <span class="inline-formula">NO<sub><i>x</i></sub></span>-limited areas. This study provides recommendations for the application of IR scales, which has great significance for VOC control in China and other countries suffering from serious <span class="inline-formula">O<sub>3</sub></span> air pollution.</p> |
| first_indexed | 2024-12-17T03:06:39Z |
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| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-17T03:06:39Z |
| publishDate | 2021-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-9b89f12fc36844b19fa78febdce923b32022-12-21T22:05:55ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242021-07-0121110531106810.5194/acp-21-11053-2021Development of ozone reactivity scales for volatile organic compounds in a Chinese megacityY. Zhang0L. Xue1L. Xue2W. P. L. Carter3C. Pei4C. Pei5C. Pei6C. Pei7T. Chen8J. Mu9Y. Wang10Q. Zhang11W. Wang12Environment Research Institute, Shandong University, Ji'nan, Shandong, ChinaEnvironment Research Institute, Shandong University, Ji'nan, Shandong, ChinaCollaborative innovation Center for climate Change, Jiangsu Province, Nanjing, ChinaCenter for Environmental Research and Technology, University of California, Riverside, CA, USAState Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaGuangzhou Ecological and Environmental Monitoring Center of Guangdong Province, Guangzhou, ChinaGuangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Guangzhou, ChinaEnvironment Research Institute, Shandong University, Ji'nan, Shandong, ChinaEnvironment Research Institute, Shandong University, Ji'nan, Shandong, ChinaGuangzhou Ecological and Environmental Monitoring Center of Guangdong Province, Guangzhou, ChinaEnvironment Research Institute, Shandong University, Ji'nan, Shandong, ChinaEnvironment Research Institute, Shandong University, Ji'nan, Shandong, China<p>We developed incremental reactivity (IR) scales for 116 volatile organic compounds (VOCs) in a Chinese megacity (Guangzhou) and elucidated their application in calculating the ozone (<span class="inline-formula">O<sub>3</sub></span>) formation potential (OFP) in China. Two sets of model inputs (emission-based and observation-based) were designed to localize the IR scales in Guangzhou using the Master Chemical Mechanism (MCM) box model and were also compared with those of the US. The two inputs differed in how primary pollutant inputs in the model were derived, with one based on emission data and the other based on observed pollutant levels, but the maximum incremental reactivity (MIR) scales derived from them were fairly similar. The IR scales showed a strong dependence on the chemical mechanism (MCM vs. Statewide Air Pollution Research Center), and a higher consistency was found in IR scales between China and the US using a similar chemical mechanism. With a given chemical mechanism, the MIR scale for most VOCs showed a relatively small dependence on environmental conditions. However, when the <span class="inline-formula">NO<sub><i>x</i></sub></span> availability decreased, the IR scales became more sensitive to environmental conditions and the discrepancy between the IR scales obtained from emission-based and observation-based inputs increased, thereby implying the necessity to localize IR scales over mixed-limited or <span class="inline-formula">NO<sub><i>x</i></sub></span>-limited areas. This study provides recommendations for the application of IR scales, which has great significance for VOC control in China and other countries suffering from serious <span class="inline-formula">O<sub>3</sub></span> air pollution.</p>https://acp.copernicus.org/articles/21/11053/2021/acp-21-11053-2021.pdf |
| spellingShingle | Y. Zhang L. Xue L. Xue W. P. L. Carter C. Pei C. Pei C. Pei C. Pei T. Chen J. Mu Y. Wang Q. Zhang W. Wang Development of ozone reactivity scales for volatile organic compounds in a Chinese megacity Atmospheric Chemistry and Physics |
| title | Development of ozone reactivity scales for volatile organic compounds in a Chinese megacity |
| title_full | Development of ozone reactivity scales for volatile organic compounds in a Chinese megacity |
| title_fullStr | Development of ozone reactivity scales for volatile organic compounds in a Chinese megacity |
| title_full_unstemmed | Development of ozone reactivity scales for volatile organic compounds in a Chinese megacity |
| title_short | Development of ozone reactivity scales for volatile organic compounds in a Chinese megacity |
| title_sort | development of ozone reactivity scales for volatile organic compounds in a chinese megacity |
| url | https://acp.copernicus.org/articles/21/11053/2021/acp-21-11053-2021.pdf |
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