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| 常州市NO2 污染特征及一次污染过程分析 |
| Analysis on A NO2 Pollution Process and Its Characteristic in Changzhou |
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| DOI： |
| 中文关键词: NO2 污染特征 混合层高度 水溶性离子 大气 常州 |
| 英文关键词: NO2 Pollution characteristics Mixed layer height Water soluble ions Atmosphere Changzhou |
| 基金项目:国家自然科学基金青年科学基金资助项目(21607016)；常州市科技局科技支撑(社会发展)基金资助项目(CE20175022) |
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| 中文摘要: |
| 利用2013年—2017年常州市NO2数据，分析常州市NO2污染特征，结合混合层高度及水溶性离子组分等数据，重点分析2017年11月1日—3日的大气污染过程及成因。结果表明，秋、冬季NO2呈逐年升高趋势，NO2污染日益凸显，秋、冬季在不利气象条件下，NO2质量浓度易在交通晚高峰时间段迅速升高，并形成污染过程。针对NO2污染应加强本地污染源管控，提前削峰减排。 |
| 英文摘要: |
| In this paper, the characteristics of NO2 pollution in Changzhou were analyzed based on NO2 data from 2013 to 2017, mixed layer height and the composition of water soluble ions, especially an air pollution process and its causes through Nov.1th to 3rd, 2017. The results showed that NO2 increased year by year in autumn and winter, NO2 pollution was obvious. Under adverse weather conditions in autumn or winter, the concentration of NO2 rose rapidly during peak hours at evening and the pollution was formed. The management and control of NO2 pollution from local sources should be strengthened to reduce the peak value in advance. |
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