| 中国主要城市疫情管控期间大气环境改善效应研究 |
| Study on the Effect of Atmospheric Environment Improvement During Epidemic Control in Major Cities in China |
| 投稿时间：2021-07-13 修订日期：2022-01-13 |
| DOI：10.19316/j.issn.1002-6002.2022.05.14 |
| 中文关键词: COVID-19|中国主要城市|疫情管控|大气污染物变化|统计学分析 |
| 英文关键词:COVID-19|provincial capital cities in China|epidemic control|atmospheric pollutant characteristics|statistical analysis |
| 基金项目:国家人口健康科学数据中心2021年度专题项目和成都市科技局软科学项目(2020-RK00-00213-ZF);攀枝花市科学技术局创新中心建设项目(2021ZX-5-1) |
|
| 通讯作者:王式功* 成都信息工程大学大气科学学院/环境气象与健康研究院, 四川 成都 610225 |
| 摘要点击次数: 496 |
| 全文下载次数: 189 |
| 中文摘要: |
| 利用我国31个省会(省府)城市、直辖市站点大气污染物数据,对全国主要城市2020年新冠疫情管控期间以及复工复产后的大气污染状况进行统计学分析。结果表明:叠加疫情管控影响,相比往年,2020年春节假期前后全国主要城市整体上PM10、NO2、SO2、CO平均质量浓度降幅分别达到22.46%、60.13%、13.71%、17.64%;疫情管控期间全国主要城市PM2.5与PM10偏相关系数为0.952,PM2.5与SO2、NO2、CO的偏相关系数分别为0.705、0.791、0.831。复工复产初期相较疫情管控期间仅有NO2平均质量浓度上升;随着复工复产进程深入,PM10、SO2、NO2平均质量浓度则均有大幅度上升。采暖区SO2和CO平均质量浓度在疫情管控期分别为非采暖区的2.6倍及1.6倍,两大区域在复工复产后各大气污染物质量浓度变化情况有所差异,也反映出采暖区与非采暖区的大气污染情况的不同。 |
| 英文摘要: |
| Using air pollutant data from 31 provincial capital city stations in China,a statistical analysis of the air pollution status of major cities in China during the control period of the COVID-19 epidemic in 2020 and after the resumption of work and production was conducted.The results showed that the overall reduction of PM10,NO2,SO2 and CO in 31 provincial capitals before and after the Spring Festival holiday in 2020 reached 22.46%,60.13%,13.71% and 17.64%,compared with previous years.The partial correlation coefficient between PM2.5 and PM10 in 31 provincial capitals during the epidemic control period was 0.952,and the partial correlation coefficients between PM2.5 and SO2,NO2 and CO were 0.705,0.791 and 0.831,correspondingly.At the early stage of resumption of production,only NO2 concentration increased compared to the epidemic control period.As the process of resumption of production progressed,PM10,SO2 and NO2 concentrations all increased significantly.The concentrations of SO2 and CO in the heating zone were 2.6 times and 1.6 times higher than those in the non-heating zone during the epidemic control period.The changes in the concentrations of each air pollutant in the two regions differed after the resumption of work and production,which also reflected the difference in the air pollution situation between the heating and non-heating zones. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
