The impact of anthropogenic emissions sectors on the weekly cycle of ambient NO2 across China
文献类型：期刊论文
| 作者 | Gu, Jianbin1,2; Chen, Liangfu1,2; Tao, Jinhua1,2; Tian, Yanfang3; Liang, Xiaoxia4; Song, Shipeng2,5; Fan, Meng1,2; Li, Yichen1,2 |
| 刊名 | ENVIRONMENTAL TECHNOLOGY & INNOVATION
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 39页码:104284 |
| 关键词 | Nitrogen dioxide Tropospheric Monitoring Instrument Traffic Gross domestic product Weekly cycle |
| ISSN号 | 2352-1864 |
| DOI | 10.1016/j.eti.2025.104284 |
| 产权排序 | 5 |
| 文献子类 | Article |
| 英文摘要 | Nitrogen dioxide (NO2) mainly originate from anthropogenic activities such as combustion of fossil fuels in road transport, industries, and thermal power plants. Since human activity in industrialized countries in general follows a seven-day cycle, NO2 emissions are expected to be reduced during weekends (Saturday-Sunday), and thus display a weekly cycle with low levels on weekends and high on weekdays (Monday-Friday). However, as one of the regions suffering serious NO2 pollution in the world, weekly cycle of China's NO2 with significant weekend reduction has not been observed by using satellite measurements. In this study we used NO2 column data from Tropospheric Monitoring Instrument (TROPOMI) and national and provincial statistics traffic and gross domestic product (GDP) data across China to investigate weekly cycle of NO2 during the coronavirus disease 2019 (COVID-19) lockdown in the first quarter (Q1) of 2020, the subsequent economic recovery period in Q1 2021, and the impact period of the breakout of Omicron in Q1 2022. We find an increase in magnitude of weekend reduction in NO2 levels by 8 % over China in Q1 2020 compared to Q1 2019 due to the lockdown restrictions, and passenger traveled, freight traveled, and secondary industry contributed 9 %, 66 %, and 25 % to this change, respectively. A decrease in weekend reduction by 7 % in Q1 2021 was observed due to economic stimulus packages issued by governments. Changes in provincial-level weekly cycle of NO2 were also calculated, as well as the three emission source sectors variations. |
| URL标识 | 查看原文 |
| WOS关键词 | GROUND-BASED MEASUREMENTS ; PM2.5 |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001501820700001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/214519]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tian, Yanfang |
| 作者单位 | 1.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing & Digital Earth, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Res Inst Environm Sci, Key Lab Estuarine & Coastal Environm, Minist Ecol & Environm, Beijing 100012, Peoples R China; 4.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100089, Peoples R China; 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Jianbin,Chen, Liangfu,Tao, Jinhua,et al. The impact of anthropogenic emissions sectors on the weekly cycle of ambient NO2 across China[J]. ENVIRONMENTAL TECHNOLOGY & INNOVATION,2025,39:104284. |
| APA | Gu, Jianbin.,Chen, Liangfu.,Tao, Jinhua.,Tian, Yanfang.,Liang, Xiaoxia.,...&Li, Yichen.(2025).The impact of anthropogenic emissions sectors on the weekly cycle of ambient NO2 across China.ENVIRONMENTAL TECHNOLOGY & INNOVATION,39,104284. |
| MLA | Gu, Jianbin,et al."The impact of anthropogenic emissions sectors on the weekly cycle of ambient NO2 across China".ENVIRONMENTAL TECHNOLOGY & INNOVATION 39(2025):104284. |
入库方式： OAI收割
来源：地理科学与资源研究所
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