| 引用本文: | JIA Zhihai,HUANG Yan,LI Xin,LIU Mingzhao,FAN Mingjing.Characteristics and Transmission Effects of Ozone Pollution in Coastal Areas of Qingdao in 2022[J].Environmental Monitoring and Forewarning,2023,15(5):121~127 |
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| 摘要: |
| 基于2022年1—12月青岛市沿海区域臭氧（O3）自动监测数据和气象观测资料，对O3污染变化特征及影响因素进行了分析，结合后向轨迹聚类与潜在源区分析等方法，对O3外来输送通道及潜在源分布情况进行分析研究。结果表明：青岛市沿海区域O3污染主要集中在4—10月份，日变化特征呈单峰单谷趋势，峰值出现在15：00—16：00；气象因素中，地面短波辐射对O3浓度变化的相对贡献最大，偏南风易导致O3污染；受二氧化氮（NO2）滴定作用以及海陆风转换影响，沿海区域O3峰值与谷值均滞后青岛城区1 h左右；O3生成整体处于VOCs控制区，1-丁烯、正丁烷与异戊烷是O3污染期间导致O3浓度上升的关键组分；O3污染的主要潜在源区为长三角北部和黄海近岸海域，以及山东中南部地区。 |
| 关键词: 臭氧 污染特征 后向轨迹聚类分析 潜在源区分析 青岛市 |
| DOI：10.3969/j.issn.1674-6732.2023.05.018 |
| 分类号:X823 |
| 基金项目:青岛市民生科技计划基金资助项目（14-8-3-10-NSH） |
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| Characteristics and Transmission Effects of Ozone Pollution in Coastal Areas of Qingdao in 2022 |
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JIA Zhihai1， HUANG Yan2， LI Xin3， LIU Mingzhao1， FAN Mingjing1
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1.Laoshan Branch， Qingdao Municipal Bureau of Ecology and Environment， Qingdao， Shandong 266061， China；2.Qingdao Ecological Environment Monitoring Center of Shandong Province， Qingdao， Shandong 266000， China；3.Licang Branch of Qingdao Ecology and Environment Bureau， Qingdao， Shandong 266041， China
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| Abstract: |
| Based on the automatic ozone monitoring data and meteorological observation data of Qingdao coastal areas from January to December 2022， the characteristics and influencing factors of ozone pollution were analyzed. Combined with the backward trajectories clustering analysis and potential pollution sources analysis， the distribution of exotic ozone transport channels and potential sources were analyzed and studied. The results showed that ozone pollution in coastal areas of Qingdao was mainly concentrated from April to October， and the diurnal variation showed a single peak and single trough trend， with the peak appearing at 15：00 to 16：00. Among the meteorological factors，the relative contribution of surface short wave radiation to ozone concentration is the largest. Ozone pollution tended to occur on southerly windy days. Affected by the NO2 titration and the conversion of sea and land winds， the peak and valley values of ozone in coastal areas lag behind the urban area of Qingdao by about 1 hour. The ozone generation was in the VOCs control area， 1-butene， n-butane and isopentane were the key components that leads to the rise of ozone concentration during ozone pollution days. The main potential sources of ozone pollution were the northern Yangtze River Delta， the coastal waters of the Yellow Sea and the central and southern Shandong Province. |
| Key words: Ozone Variation characteristics Backward trajectory clustering analysis Potential sources analysis Qingdao |
