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Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls

In 2020, lockdown control measures were implemented to prevent a novel coronavirus disease 19 (COVID-19) pandemic in many places of the world, which largely reduced human activities. Here, we detect changes in weekly cycles of PM(2.5), NO(2), SO(2), CO and O(3) concentrations in 2020 compared to 201...

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Autores principales: Wu, Lingyun, Xie, Junfei, Kang, Keyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9510312/
https://www.ncbi.nlm.nih.gov/pubmed/37521771
http://dx.doi.org/10.1038/s42949-022-00070-0
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author Wu, Lingyun
Xie, Junfei
Kang, Keyu
author_facet Wu, Lingyun
Xie, Junfei
Kang, Keyu
author_sort Wu, Lingyun
collection PubMed
description In 2020, lockdown control measures were implemented to prevent a novel coronavirus disease 19 (COVID-19) pandemic in many places of the world, which largely reduced human activities. Here, we detect changes in weekly cycles of PM(2.5), NO(2), SO(2), CO and O(3) concentrations in 2020 compared to 2018 and 2019 using the observed data at 32 stations in Beijing. Distinct weekly cycles of annual average PM(2.5), NO(2), SO(2) and CO concentrations existed in 2018, while the weekend effects changed in 2020. In addition, the weekly cycle magnitudes of PM(2.5), NO(2), SO(2), and O(3) concentrations in 2020 decreased by 29.60–69.26% compared to 2018, and 4.49–47.21% compared to 2019. We propose that the changing weekend effects and diminishing weekly cycle magnitudes may be tied to the COVID-19 lockdown controls, which changed human working and lifestyle cycles and reduced anthropogenic emissions of air pollutants on weekends more than weekdays.
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spelling pubmed-95103122022-09-26 Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls Wu, Lingyun Xie, Junfei Kang, Keyu npj Urban Sustain Article In 2020, lockdown control measures were implemented to prevent a novel coronavirus disease 19 (COVID-19) pandemic in many places of the world, which largely reduced human activities. Here, we detect changes in weekly cycles of PM(2.5), NO(2), SO(2), CO and O(3) concentrations in 2020 compared to 2018 and 2019 using the observed data at 32 stations in Beijing. Distinct weekly cycles of annual average PM(2.5), NO(2), SO(2) and CO concentrations existed in 2018, while the weekend effects changed in 2020. In addition, the weekly cycle magnitudes of PM(2.5), NO(2), SO(2), and O(3) concentrations in 2020 decreased by 29.60–69.26% compared to 2018, and 4.49–47.21% compared to 2019. We propose that the changing weekend effects and diminishing weekly cycle magnitudes may be tied to the COVID-19 lockdown controls, which changed human working and lifestyle cycles and reduced anthropogenic emissions of air pollutants on weekends more than weekdays. Nature Publishing Group UK 2022-09-22 2022 /pmc/articles/PMC9510312/ /pubmed/37521771 http://dx.doi.org/10.1038/s42949-022-00070-0 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wu, Lingyun
Xie, Junfei
Kang, Keyu
Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls
title Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls
title_full Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls
title_fullStr Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls
title_full_unstemmed Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls
title_short Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls
title_sort changing weekend effects of air pollutants in beijing under 2020 covid-19 lockdown controls
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9510312/
https://www.ncbi.nlm.nih.gov/pubmed/37521771
http://dx.doi.org/10.1038/s42949-022-00070-0
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