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| 济南市夏季甲醛时空分布特征及对臭氧污染的影响 |
| Temporal and Spatial Distribution Characteristics of Formaldehyde and Its Effect on Ozone Pollution in Jinan in Summer |
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| DOI： |
| 中文关键词: 甲醛 臭氧 时空分布特征 卫星遥感 污染等级 济南市 |
| 英文关键词: Formaldehyde Ozone Spatial and temporal distribution characteristics Satellite remote sensing Pollution degree Jinan |
| 基金项目:山东省生态环境厅“黄河流域生态状况变化调查评估”基金资助项目（SDGP370000000202102001816）；济南市生态环境遥感监测能力建设基金资助项目（Z145060020001） |
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| 中文摘要: |
| 基于Sentinel-5P卫星遥感数据，分析济南市2019—2021年夏季甲醛浓度的时空分布特征及对臭氧污染的影响。结果表明：研究期间夏季甲醛平均柱浓度呈逐年下降趋势，2020年同比降幅最大为24%；甲醛浓度高值区域主要分布在人口密集的市区及工业聚集的章丘区、济阳区和商河县，呈现由城市中心向外扩散的趋势；甲醛浓度受周边城市的影响，形成一条东西向的区域化污染带；甲醛对臭氧的影响主要表现在臭氧污染轻度或污染初期，而氮氧化物的排放进一步加重臭氧污染。 |
| 英文摘要: |
| Based on Sentinel-5P satellite remote sensing data，the spatial and temporal distribution characteristics of formaldehyde concentration in Jinan during the summer of 2019—2021 and its effect on ozone pollution were analyzed. The results showed that the average column concentration of formaldehyde in summer decreased year by year, with the largest year-on-year decrease of 24% in 2020. The areas with high concentration of formaldehyde distributed mainly in densely populated urban areas and Zhangqiu District, Jiyang District and Shanghe County， where the industry was concentrated, showing a trend of spreading outward from the urban center. The concentration of formaldehyde was affected by surrounding cities， forming an east west regional pollution belt. The effect of formaldehyde on ozone was mainly in the mild or early stage of ozone pollution, and the emission of NOx further aggravated ozone pollution. |
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