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Factors influencing improvements in air quality in Guanzhong cities of China, and variations therein for 2014-2020

文献类型：期刊论文

作者Zhao, Huiyizhe1,2,4; Niu, Zhenchuan1,2,3,6; Feng, Xue5
刊名URBAN CLIMATE
出版日期2021-07-01
卷号38页码:13
关键词Air quality improvement COVID-19 pandemic Meteorological factors Emission reductions Cities in Guanzhong
ISSN号2212-0955
DOI10.1016/j.uclim.2021.100877
通讯作者Niu, Zhenchuan(niuzc@ieeas.cn)
英文摘要It is interesting and important to know what factors cause improvements in regional air quality. This study analyzed the factors that improved the air quality in cities in the Guanzhong region of China-in terms of meteorology and controlling emissions-following the implementation of the "Action Plan for Air Pollution Prevention and Control" in 2013. The average air quality index (AQI) values, PM2.5, PM10, SO2, CO, and NO2 in these cities in 2020 decreased by 45.1%, 43.8%, 82.9%, 57.3%, and 31.6%, respectively, compared to the values in 2014, while the O3 concentration increased by 16.7%. During the COVID-19 pandemic of February to May 2020, lockdown measures in cities in Guanzhong resulted in reductions of approximately 18.4%, 24.2%, and 17.9% in the AQI, PM2.5, and PM10 concentrations compared to the same period in 2019. Principal component analysis showed that the yearly reduction in AQI in cities in Guanzhong was attributed mainly to reductions in industrial emissions, followed by reductions in emissions from homes and motor vehicle exhausts. We propose the strengthening of measures to control particulate matter, O3 and greenhouse gas to see the improvement of air quality among this region in the future.
WOS关键词CHEMICAL-COMPOSITION ; METEOROLOGICAL CONDITIONS ; SEVERE HAZE ; POLLUTION ; PM2.5 ; OZONE ; WINTER ; POLLUTANTS ; EMISSIONS ; APEC
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23010302] ; Key projects of CAS[ZDRW-ZS-2017-6] ; National Natural Science Foundation of China[41773141] ; National Natural Science Foundation of China[41573136] ; National Natural Science Foundation of China[41730108] ; Youth Innovation Promotion Association CAS[2016360] ; National Research Program for Key Issues in Air Pollution Control[DQGG0105-02] ; Chinese Academy of Sciences[QYZDY-SSW-DQC001] ; Chinese Academy of Sciences[ZDBS-SSW-DQC001] ; Chinese Academy of Sciences[Y354011480] ; Chinese Academy of Sciences[SKLLQGPY1610] ; Natural Science Basic Research Program of Shaanxi[2019JCW-20] ; Natural Science Foundation of Shaanxi[2014JQ2-4018]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000679344300003
出版者ELSEVIER
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Key projects of CAS ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; National Research Program for Key Issues in Air Pollution Control ; Chinese Academy of Sciences ; Natural Science Basic Research Program of Shaanxi ; Natural Science Foundation of Shaanxi
源URL[http://ir.ieecas.cn/handle/361006/16873]  
专题地球环境研究所_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Niu, Zhenchuan
作者单位1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, CAS Ctr Excellence Quaternary Sci & Global Change, Inst Earth Environm, Xian 710061, Peoples R China
2.Xi An Jiao Tong Univ, Shaanxi Prov Key Lab Accelerator Mass Spectrometr, Joint Xian AMS Ctr IEECAS, Xian 710061, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Xian Inst Innovat Earth Environm Res, Xian, Peoples R China
6.Guanzhong Plain Ecol Environm Change & Comprehens, Xian, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Huiyizhe,Niu, Zhenchuan,Feng, Xue. Factors influencing improvements in air quality in Guanzhong cities of China, and variations therein for 2014-2020[J]. URBAN CLIMATE,2021,38:13.
APA Zhao, Huiyizhe,Niu, Zhenchuan,&Feng, Xue.(2021).Factors influencing improvements in air quality in Guanzhong cities of China, and variations therein for 2014-2020.URBAN CLIMATE,38,13.
MLA Zhao, Huiyizhe,et al."Factors influencing improvements in air quality in Guanzhong cities of China, and variations therein for 2014-2020".URBAN CLIMATE 38(2021):13.

入库方式： OAI收割

来源：地球环境研究所

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