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Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal

The air pollution process and impact mechanism of megacities located in complex terrain are particularly complex. As a typical megacity in China, Chengdu has unique topographical and meteorological conditions, and its pollution control is difficult. This study systematically elucidated the variatio...

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Main Authors: Li, Xiaoju, Abdullah, Luqman Chuah, Sobri, Shafreeza, Md Said, Mohamad Syazarudin, Hussain, Siti Aslina, Tan, Poh Aun, Jinzhao, Hu
Format: Article
Language:English
Published: The Korean Society of Environmental Engineers 2024
Online Access:http://psasir.upm.edu.my/id/eprint/111027/1/Variation%20characteristics%20and%20coordinated%20emission%20reduction%20of%20air%20pollutants%20in%20megacity.pdf
http://psasir.upm.edu.my/id/eprint/111027/
https://www.eeer.org/journal/view.php?number=1535
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spelling my.upm.eprints.1110272024-04-25T09:17:35Z http://psasir.upm.edu.my/id/eprint/111027/ Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal Li, Xiaoju Abdullah, Luqman Chuah Sobri, Shafreeza Md Said, Mohamad Syazarudin Hussain, Siti Aslina Tan, Poh Aun Jinzhao, Hu The air pollution process and impact mechanism of megacities located in complex terrain are particularly complex. As a typical megacity in China, Chengdu has unique topographical and meteorological conditions, and its pollution control is difficult. This study systematically elucidated the variation characteristics of six criteria air pollutants in Chengdu between 2014 and 2020. Besides, the PM2.5/PM10 and NO2/SO2 ratios were discussed. Furthermore, a detailed analysis of the correlation between air pollutants was carried out. Finally, the collaborative path of carbon reduction and air pollution control is discussed. The results indicated that SO2, PM2.5, PM10 and CO were significantly decreased by 62.9%, 50.8%, 45.5%, and 36.7%, respectively. PM2.5 and O3 compliance rates are very low, and O3 increases with fluctuations. SO2, NO2, CO, PM showed a “U-shaped” seasonal variation, and there was a “seesaw” phenomenon between O3 and PM2.5. The continuous changing trends are also found in the ratios of PM2.5/PM10 and NO2/SO2. The results highlight the importance of coordinated reduction of carbon emissions and pollutants in Chengdu. This research can improve the prediction accuracy of air pollution in complex terrain areas under global warming and improve the understanding of the formation mechanism of air pollution in special terrains around the world. The Korean Society of Environmental Engineers 2024-08 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/111027/1/Variation%20characteristics%20and%20coordinated%20emission%20reduction%20of%20air%20pollutants%20in%20megacity.pdf Li, Xiaoju and Abdullah, Luqman Chuah and Sobri, Shafreeza and Md Said, Mohamad Syazarudin and Hussain, Siti Aslina and Tan, Poh Aun and Jinzhao, Hu (2024) Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal. Environmental Engineering Research, 29 (4). art. no. 230475. pp. 1-19. ISSN 2005-968X; ESSN: 1226-1025 https://www.eeer.org/journal/view.php?number=1535 10.4491/eer.2023.475
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The air pollution process and impact mechanism of megacities located in complex terrain are particularly complex. As a typical megacity in China, Chengdu has unique topographical and meteorological conditions, and its pollution control is difficult. This study systematically elucidated the variation characteristics of six criteria air pollutants in Chengdu between 2014 and 2020. Besides, the PM2.5/PM10 and NO2/SO2 ratios were discussed. Furthermore, a detailed analysis of the correlation between air pollutants was carried out. Finally, the collaborative path of carbon reduction and air pollution control is discussed. The results indicated that SO2, PM2.5, PM10 and CO were significantly decreased by 62.9%, 50.8%, 45.5%, and 36.7%, respectively. PM2.5 and O3 compliance rates are very low, and O3 increases with fluctuations. SO2, NO2, CO, PM showed a “U-shaped” seasonal variation, and there was a “seesaw” phenomenon between O3 and PM2.5. The continuous changing trends are also found in the ratios of PM2.5/PM10 and NO2/SO2. The results highlight the importance of coordinated reduction of carbon emissions and pollutants in Chengdu. This research can improve the prediction accuracy of air pollution in complex terrain areas under global warming and improve the understanding of the formation mechanism of air pollution in special terrains around the world.
format Article
author Li, Xiaoju
Abdullah, Luqman Chuah
Sobri, Shafreeza
Md Said, Mohamad Syazarudin
Hussain, Siti Aslina
Tan, Poh Aun
Jinzhao, Hu
spellingShingle Li, Xiaoju
Abdullah, Luqman Chuah
Sobri, Shafreeza
Md Said, Mohamad Syazarudin
Hussain, Siti Aslina
Tan, Poh Aun
Jinzhao, Hu
Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal
author_facet Li, Xiaoju
Abdullah, Luqman Chuah
Sobri, Shafreeza
Md Said, Mohamad Syazarudin
Hussain, Siti Aslina
Tan, Poh Aun
Jinzhao, Hu
author_sort Li, Xiaoju
title Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal
title_short Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal
title_full Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal
title_fullStr Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal
title_full_unstemmed Variation characteristics and coordinated emission reduction of air pollutants in megacity of Chengdu-Chongqing economic circle under dual carbon goal
title_sort variation characteristics and coordinated emission reduction of air pollutants in megacity of chengdu-chongqing economic circle under dual carbon goal
publisher The Korean Society of Environmental Engineers
publishDate 2024
url http://psasir.upm.edu.my/id/eprint/111027/1/Variation%20characteristics%20and%20coordinated%20emission%20reduction%20of%20air%20pollutants%20in%20megacity.pdf
http://psasir.upm.edu.my/id/eprint/111027/
https://www.eeer.org/journal/view.php?number=1535
_version_ 1797911381396160512
score 13.211869

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