The implication of the air quality pattern in South Korea after the COVID-19 outbreak

Abstract By using multiple satellite measurements, the changes of the aerosol optical depth (AOD) and nitrogen dioxide (NO2) over South Korea were investigated from January to March 2020 to evaluate the COVID-19 effect on the regional air quality. The NO2 decrease in South Korea was found but not si...

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Autores principales:	Ja-Ho Koo, Jhoon Kim, Yun Gon Lee, Sang Seo Park, Seoyoung Lee, Heesung Chong, Yeseul Cho, Jaemin Kim, Kyungbae Choi, Taegyung Lee
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b71c105d0dd14a3986e6b5e80344ee63
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spelling	oai:doaj.org-article:b71c105d0dd14a3986e6b5e80344ee632021-12-02T13:46:37ZThe implication of the air quality pattern in South Korea after the COVID-19 outbreak10.1038/s41598-020-80429-42045-2322https://doaj.org/article/b71c105d0dd14a3986e6b5e80344ee632020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80429-4https://doaj.org/toc/2045-2322Abstract By using multiple satellite measurements, the changes of the aerosol optical depth (AOD) and nitrogen dioxide (NO2) over South Korea were investigated from January to March 2020 to evaluate the COVID-19 effect on the regional air quality. The NO2 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 NO2 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.Ja-Ho KooJhoon KimYun Gon LeeSang Seo ParkSeoyoung LeeHeesung ChongYeseul ChoJaemin KimKyungbae ChoiTaegyung LeeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ja-Ho Koo Jhoon Kim Yun Gon Lee Sang Seo Park Seoyoung Lee Heesung Chong Yeseul Cho Jaemin Kim Kyungbae Choi Taegyung Lee The implication of the air quality pattern in South Korea after the COVID-19 outbreak
description	Abstract By using multiple satellite measurements, the changes of the aerosol optical depth (AOD) and nitrogen dioxide (NO2) over South Korea were investigated from January to March 2020 to evaluate the COVID-19 effect on the regional air quality. The NO2 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 NO2 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	article
author	Ja-Ho Koo Jhoon Kim Yun Gon Lee Sang Seo Park Seoyoung Lee Heesung Chong Yeseul Cho Jaemin Kim Kyungbae Choi Taegyung Lee
author_facet	Ja-Ho Koo Jhoon Kim Yun Gon Lee Sang Seo Park Seoyoung Lee Heesung Chong Yeseul Cho Jaemin Kim Kyungbae Choi Taegyung Lee
author_sort	Ja-Ho Koo
title	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_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_sort	implication of the air quality pattern in south korea after the covid-19 outbreak
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/b71c105d0dd14a3986e6b5e80344ee63
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The implication of the air quality pattern in South Korea after the COVID-19 outbreak

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