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The implication of the air quality pattern in South Korea after the COVID-19 outbreak
By using multiple satellite measurements, the changes of the aerosol optical depth (AOD) and nitrogen dioxide (NO(2)) over South Korea were investigated from January to March 2020 to evaluate the COVID-19 effect on the regional air quality. The NO(2) decrease in South Korea was found but not signifi...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7775425/ https://www.ncbi.nlm.nih.gov/pubmed/33384456 http://dx.doi.org/10.1038/s41598-020-80429-4 |
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author | Koo, Ja-Ho Kim, Jhoon Lee, Yun Gon Park, Sang Seo Lee, Seoyoung Chong, Heesung Cho, Yeseul Kim, Jaemin Choi, Kyungbae Lee, Taegyung |
author_facet | Koo, Ja-Ho Kim, Jhoon Lee, Yun Gon Park, Sang Seo Lee, Seoyoung Chong, Heesung Cho, Yeseul Kim, Jaemin Choi, Kyungbae Lee, Taegyung |
author_sort | Koo, Ja-Ho |
collection | PubMed |
description | By using multiple satellite measurements, the changes of the aerosol optical depth (AOD) and nitrogen dioxide (NO(2)) over South Korea were investigated from January to March 2020 to evaluate the COVID-19 effect on the regional air quality. The NO(2) decrease in South Korea was found but not significant, which indicates the effects of spontaneous social distancing under the maintenance of ordinary life. The AODs in 2020 were normally high in January, but they became lower starting from February. Since the atmosphere over Eastern Asia was unusually stagnant in January and February 2020, the AOD decrease in February 2020 clearly reveals the positive effect of the COVID-19. Considering the insignificant NO(2) decrease in South Korea and the relatively long lifetime of aerosols, the AOD decrease in South Korea may be more attributed to the improvement of the air quality in neighboring countries. In March, regional atmosphere became well mixed and ventilated over South Korea, contributing to large enhancement of air quality. While the social activity was reduced after the COVID-19 outbreak, the regional meteorology should be also examined significantly to avoid the biased evaluation of the social impact on the change of the regional air quality. |
format | Online Article Text |
id | pubmed-7775425 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-77754252021-01-07 The implication of the air quality pattern in South Korea after the COVID-19 outbreak Koo, Ja-Ho Kim, Jhoon Lee, Yun Gon Park, Sang Seo Lee, Seoyoung Chong, Heesung Cho, Yeseul Kim, Jaemin Choi, Kyungbae Lee, Taegyung Sci Rep Article By using multiple satellite measurements, the changes of the aerosol optical depth (AOD) and nitrogen dioxide (NO(2)) over South Korea were investigated from January to March 2020 to evaluate the COVID-19 effect on the regional air quality. The NO(2) decrease in South Korea was found but not significant, which indicates the effects of spontaneous social distancing under the maintenance of ordinary life. The AODs in 2020 were normally high in January, but they became lower starting from February. Since the atmosphere over Eastern Asia was unusually stagnant in January and February 2020, the AOD decrease in February 2020 clearly reveals the positive effect of the COVID-19. Considering the insignificant NO(2) decrease in South Korea and the relatively long lifetime of aerosols, the AOD decrease in South Korea may be more attributed to the improvement of the air quality in neighboring countries. In March, regional atmosphere became well mixed and ventilated over South Korea, contributing to large enhancement of air quality. While the social activity was reduced after the COVID-19 outbreak, the regional meteorology should be also examined significantly to avoid the biased evaluation of the social impact on the change of the regional air quality. Nature Publishing Group UK 2020-12-31 /pmc/articles/PMC7775425/ /pubmed/33384456 http://dx.doi.org/10.1038/s41598-020-80429-4 Text en © The Author(s) 2020 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Koo, Ja-Ho Kim, Jhoon Lee, Yun Gon Park, Sang Seo Lee, Seoyoung Chong, Heesung Cho, Yeseul Kim, Jaemin Choi, Kyungbae Lee, Taegyung The implication of the air quality pattern in South Korea after the COVID-19 outbreak |
title | The implication of the air quality pattern in South Korea after the COVID-19 outbreak |
title_full | The implication of the air quality pattern in South Korea after the COVID-19 outbreak |
title_fullStr | The implication of the air quality pattern in South Korea after the COVID-19 outbreak |
title_full_unstemmed | The implication of the air quality pattern in South Korea after the COVID-19 outbreak |
title_short | The implication of the air quality pattern in South Korea after the COVID-19 outbreak |
title_sort | implication of the air quality pattern in south korea after the covid-19 outbreak |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7775425/ https://www.ncbi.nlm.nih.gov/pubmed/33384456 http://dx.doi.org/10.1038/s41598-020-80429-4 |
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