| The impact of COVID-19 lockdown on atmospheric CO2 in Xi'an, China | |
Wu, Shugang1,2,3 ; Zhou, Weijian1,2,3; Xiong, Xiaohu1,2,3; Burr, G. S.1,2,3; Cheng, Peng1,2,3; Wang, Peng1,2,3; Niu, Zhenchuan1,2,3; Hou, Yaoyao1,2,3
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| 通讯作者 | Wu, Shugang(wusg@ieecas.cn) |
| 2021-06-01 | |
| 发表期刊 | ENVIRONMENTAL RESEARCH
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| ISSN | 0013-9351 |
| 卷号 | 197页码:7 |
| 摘要 | Lockdown measures to control the spread of the novel coronavirus disease (COVID-19) sharply limited energy consumption and carbon emissions. The lockdown effect on carbon emissions has been studied by many researchers using statistical approaches. However, the lockdown effect on atmospheric carbon dioxide (CO2) on an urban scale remains unclear. Here we present CO2 concentration and carbon isotopic (813C) measurements to assess the impact of COVID-19 control measures on atmospheric CO2 in Xi'an, China. We find that CO2 concentrations during the lockdown period were 7.5% lower than during the normal period (prior to the Spring Festival, Jan 25 to Feb 4, 2020). The observed CO2 excess (total CO2 minus background CO2) during the lockdown period was 52.3% lower than that during the normal period, and 35.7% lower than the estimated CO2 excess with the effect of weather removed. A Keeling plot shows that in contrast CO2 concentrations and 813C were weakly correlated (R2 = 0.18) during the lockdown period, reflecting a change in CO2 sources imposed by the curtailment of traffic and industrial emissions. Our study also show that the sharp reduction in atmospheric CO2 during lockdown were short-lived, and returned to normal levels within months after lockdown measures were lifted. |
| 关键词 | COVID-19 Carbon emissions Lockdown Atmospheric monitoring |
| DOI | 10.1016/j.envres.2021.111208 |
| 关键词[WOS] | CARBON-DIOXIDE ; RENEWABLE ENERGY |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41730108] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23010302] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB 40000000] ; Natural Science Basic Research Program of Shaanxi[2019JCW20] ; Natural Science Basic Research Program of Shaanxi[2020JCW18] |
| WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health |
| 项目资助者 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Science Basic Research Program of Shaanxi |
| WOS类目 | Environmental Sciences ; Public, Environmental & Occupational Health |
| WOS记录号 | WOS:000663715700006 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/16811 |
| 专题 | 加速器质谱中心 第四纪科学与全球变化卓越创新中心 |
| 通讯作者 | Wu, Shugang |
| 作者单位 | 1.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Joint Xian AMS Ctr IEECAS, Shaanxi Prov Key Lab Accelerator Mass Spectrometr, Xian 710061, Peoples R China 3.Xi An Jiao Tong Univ, Xian 710061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Shugang,Zhou, Weijian,Xiong, Xiaohu,et al. The impact of COVID-19 lockdown on atmospheric CO2 in Xi'an, China[J]. ENVIRONMENTAL RESEARCH,2021,197:7. |
| APA | Wu, Shugang.,Zhou, Weijian.,Xiong, Xiaohu.,Burr, G. S..,Cheng, Peng.,...&Hou, Yaoyao.(2021).The impact of COVID-19 lockdown on atmospheric CO2 in Xi'an, China.ENVIRONMENTAL RESEARCH,197,7. |
| MLA | Wu, Shugang,et al."The impact of COVID-19 lockdown on atmospheric CO2 in Xi'an, China".ENVIRONMENTAL RESEARCH 197(2021):7. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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