| 海盐非均相反应对山东沿海大气O3浓度的影响 |
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| 引用本文： | 黄蕾,薛迪,王娇,陈春强,张洁,张宜升,刘晓环.海盐非均相反应对山东沿海大气O3浓度的影响[J].中国环境科学,2021,41(11):5036-5045. |
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| 作者姓名： | 黄蕾 薛迪 王娇 陈春强 张洁 张宜升 刘晓环 |
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| 作者单位： | 1. 中国海洋大学环境科学与工程学院, 山东 青岛 266100;2. 中国海洋大学海洋环境与生态教育部重点实验室, 山东 青岛 266100;3. 青岛海洋科学与技术国家实验室海洋生态与环境科学功能实验室, 山东 青岛 266071;4. 青岛理工大学环境与市政工程学院, 山东 青岛 266033 |
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| 基金项目： | 国家自然科学基金资助项目（U1906215，41305087） |
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| 摘 要： | 通过改进WRF-CMAQ模型中非均相反应模块，定量研究了2017年夏季和冬季海盐与含氮气体非均相反应对我国山东沿海地区大气O3浓度的影响.模拟结果表明，考虑海盐气溶胶非均相反应后，山东沿海地区夏季O3小时浓度增加了0.2×10-9~6.6×10-9（0.5%~15.5%），冬季增加了0.8×10-9~15.3×10-9（1.7%~27.4%），ClNO2在夏季和冬季分别增加了100×10-12~250×10-12，300×10-12~650×10-12；夏季O3浓度增加主要集中在山东东部，而冬季O3的增加则覆盖了山东大部分地区，表明海盐非均相反应对冬季O3的影响强度及范围均明显高于夏季.海盐非均相反应引起的O3浓度增加主要发生在日间，特别是8：00~16：00.该反应对渤海及南黄海大气O3浓度也有影响，且在这些海域生成的O3可通过4条传输路径影响山东沿海地区，甚至可影响到济南、菏泽等山东中西部地区（距离山东东部海岸线~350km）；海洋大气中O3的传输可造成山东东部沿海O3浓度升高0.2×10-9~15.3×10-9，山东中西部O3升高0.3×10-9~6.2×10-9.
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| 关 键 词： | 海盐 非均相反应 CMAQ 海洋大气传输 |
| 收稿时间： | 2021-02-09 |
Impacts of heterogeneous reactions of sea salt and nitrogen-containing gases on ozone in Shandong coastal area |
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| HUANG Lei,XUE Di,WANG Jiao,CHEN Chun-qiang,ZHANG Jie,ZHANG Yi-sheng,LIU Xiao-huan.Impacts of heterogeneous reactions of sea salt and nitrogen-containing gases on ozone in Shandong coastal area[J].China Environmental Science,2021,41(11):5036-5045. |
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| Authors: | HUANG Lei XUE Di WANG Jiao CHEN Chun-qiang ZHANG Jie ZHANG Yi-sheng LIU Xiao-huan |
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| Institution: | 1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China;2. Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China;3. Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;4. School of Environment and Municipal Engineering, Qingdao University of Technology Qingdao, Qingdao 266033, China |
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| Abstract: | The heterogeneous reactions of nitrogen-containing gases with sea salt and the subsequent production of highly reactive chlorine radicals (Cl·) could contribute to the formation of ozone (O3). The heterogeneous reactions of NO2, HNO3 and N2O5 with sea salt in the Community Multiscale Air Quality (CMAQ) model wao incorporated to simulate their impact on O3 concentration over coastal areas of Shandong in summer and winter of 2017. The simulation results indicated that the heterogeneous reactions substantially enhanced O3 concentrations up to 0.2×10-9~6.6×10-9(0.5%~15.5%) in summer and 0.8×10-9~15.3×10-9 (1.7%~27.4%) in winter, with the nighttime ClNO2 concentrations increased by 100×10-12~250×10-12 in summer and 300×10-12~650×10-12 in winter. The enhancement of O3 in summer was mainly concentrated in eastern Shandong, while in winter it covered most areas of Shandong, implicative of stronger and wider impact of heterogeneous reactions on O3 in winter in comparison to summer. The ozone enhancement triggered by the heterogeneous reactions was mainly taken effect during daytime, especially during 8:00~16:00. The influence also covered areas including Bohai Sea and South Yellow Sea, and the enhanced ozone concentration could be transported inland through four pathways, resulting in an increase of 0.2×10-9~15.3×10-9 of O3 concentration in the eastern coastal areas of Shandong, and 0.3×10-9~6.2×10-9 in the central and western areas like Jinan and Heze city, about 350km away from the eastern coastline of Shandong. |
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| Keywords: | sea salt heterogeneous reaction CMAQ marine atmosphere transport |
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