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Enhanced desalination performance of aluminium fumarate MOF-incorporated electrospun nanofiber membrane with bead-on-string structure for membrane distillation
Wu, Xiao-Qiong; Mirza, Nouman R.; Huang, Zhen; Zhang, Jianhua; Zheng, Yu-Ming; Xiang, Jun; Xie, Zongli
2021-10-15
Source PublicationDESALINATION
ISSN1680-8584
Volume21Issue:12Pages:-
AbstractThis article discussed air quality changes in the Beijing-Tianjin-Tangshan (BTT) region. The air quality index (AQI) values, and the concentrations of PM2.5, PM10, SO2, CO, NO2, and O-3 in the BTT region during the COVID-19 outbreak in 2020 were, respectively, 79.4, 47.2 mu g m(-3), 73.4 mu g m(-3), 10.3 mu g m(-3), 0.87 mg m(-3), 33.6 mu g m(-3), and 90.7 mu g m(-3). However, they were, respectively, 102.7, 61.4 mu g m(-3), 121.0 mu g m(-3), 9.0 mu g m(-3), 0.88 mg m(-3), 40.1 mu g m(-3), and 84.0 mu g m(-3) during the same period in 2021, which is an increase of 29.2%, 30.1%, 64.8%, -12.9%, 1.94 %, 19.5%, and -7.4% compared with the values in 2020. The combined proportions of grade I and grade II during the COVID-19 outbreak in 2020 were 16.7% higher than those in the same period in 2021, so the air quality has deteriorated rapidly from 2020 to the post-COVID era in 2021. The possible reasons for poorer air quality are that the frequency of dusty weather and air pollutant discharge has increased, and meteorological conditions have been relatively unfavorable. The average AQI values, and concentrations of PM2.5, PM10, SO2, CO, NO2, and O-3 during the post-COVID period in 2021 respectively decreased by 14.8%, 29.0%, 14.6%, 22.5%, 37.4%, 14.8%, and 8.7%, compared with those in 2020. It is also worth noting that all the changes in air pollution during the post-COVID era have been consistent. The combined proportions of grade I and grade II during post-COVID period in 2021 were 18.4% higher than those during the same period of 2020, which indicates that the air quality during post-COVID 2021 has obviously improved compared with those in the same period of 2020. The possible reasons are a series of clean air policies and clean air actions, as well as favorable atmospheric diffusion conditions. These results indicate that clean air policies play a very important role in improving air quality.
Department环境水质学国家重点实验室
KeywordCOVID-19 Post-COVID Air quality PM2.5 PM10
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46851
Collection环境水质学国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Pollutant Convers, 1799 Jimei Rd, Xiamen 361021, Peoples R China
2.CSIRO Mfg, Private Bag 10, Clayton, Vic 3169, Australia
3.Chinese Acad Sci, Inst Urban Environm, Fujian Key Lab Watershed Ecol, Xiamen 361021, Peoples R China
4.Victoria Univ, Inst Sustainable Ind & Liveable Cities, Melbourne, Vic 8001, Australia
5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, 18 Shuangqing Rd, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Wu, Xiao-Qiong,Mirza, Nouman R.,Huang, Zhen,et al. Enhanced desalination performance of aluminium fumarate MOF-incorporated electrospun nanofiber membrane with bead-on-string structure for membrane distillation[J]. DESALINATION,2021,21(12):-.
APA Wu, Xiao-Qiong.,Mirza, Nouman R..,Huang, Zhen.,Zhang, Jianhua.,Zheng, Yu-Ming.,...&Xie, Zongli.(2021).Enhanced desalination performance of aluminium fumarate MOF-incorporated electrospun nanofiber membrane with bead-on-string structure for membrane distillation.DESALINATION,21(12),-.
MLA Wu, Xiao-Qiong,et al."Enhanced desalination performance of aluminium fumarate MOF-incorporated electrospun nanofiber membrane with bead-on-string structure for membrane distillation".DESALINATION 21.12(2021):-.
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