COVID-19-Induced Lockdowns Indicate the Short-Term Control Effect of Air Pollutant Emission in 174 Cities in China
文献类型：期刊论文
| 作者 | Lu, Dawei; Zhang, Jingwei; Xue, Chaoyang; Zuo, Peijie ; Chen, Zigu; Zhang, Luyao; Ling, Weibo; Liu, Qian; Jiang, Guibin
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2021-04-06 |
| 卷号 | 55期号:7页码:4094-4102 |
| 关键词 | COVID-19 air pollution machine learning emission reduction public health emergency |
| ISSN号 | 0013-936X |
| 英文摘要 | The contradiction between the regional imbalance and an one-size-fits-all policy is one of the biggest challenges in current air pollution control in China. With the recent implementation of first-level public health emergency response (FLPHER) in response to the COVID-19 pandemic in China (a total of 77 041 confirmed cases by February 22, 2020), human activities were extremely decreased nationwide and almost all economic activities were suspended. Here, we show that this scenario represents an unprecedented base period to probe the short-term emission control effect of air pollution at a city level. We quantify the FLPHER-induced changes of NO2, SO2, PM2.5, and PM10 levels in 174 cities in China. A machine learning prediction model for air pollution is established by coupling a generalized additive model, random effects meta-analysis, and weather research and forecasting model with chemistry analysis. The short-term control effect under the current energy structure in each city is estimated by comparing the predicted and observed results during the FLPHER period. We found that the short-term emission control effect ranges within 53.0%-98.3% for all cities, and southern cities show a significantly stronger effect than northern cities (P < 0.01). Compared with megacities, small-medium cities show a similar control effect on NO2 and SO2 but a larger effect on PM2.5 and PM10. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45695]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 4.Jianghan Univ, Inst Environm & Hlth, Wuhan 430056, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Dawei,Zhang, Jingwei,Xue, Chaoyang,et al. COVID-19-Induced Lockdowns Indicate the Short-Term Control Effect of Air Pollutant Emission in 174 Cities in China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2021,55(7):4094-4102. |
| APA | Lu, Dawei.,Zhang, Jingwei.,Xue, Chaoyang.,Zuo, Peijie.,Chen, Zigu.,...&Jiang, Guibin.(2021).COVID-19-Induced Lockdowns Indicate the Short-Term Control Effect of Air Pollutant Emission in 174 Cities in China.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(7),4094-4102. |
| MLA | Lu, Dawei,et al."COVID-19-Induced Lockdowns Indicate the Short-Term Control Effect of Air Pollutant Emission in 174 Cities in China".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.7(2021):4094-4102. |
入库方式： OAI收割
来源：生态环境研究中心
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