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The impacts of COVID-19, meteorology, and emission control policies on PM<sub>2.5</sub> drops in Northeast Asia

Environmental Studies and Forestry

The impacts of COVID-19, meteorology, and emission control policies on PM<sub>2.5</sub> drops in Northeast Asia

Y. Kang, S. You, et al.

This study by Yoon-Hee Kang and colleagues delves into how COVID-19 has drastically affected PM2.5 concentrations in Northeast Asia. While meteorological conditions and emission control policies played a role, the findings highlight that human-induced emission reductions during the pandemic had the most significant impact, particularly in early 2020.

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Playback language: English
Abstract
This study investigates the impact of COVID-19-related emission reductions, meteorological conditions, and emission control policies on PM<sub>2.5</sub> concentrations in Northeast Asia. Using air quality modeling and observations from 2016-2020, the study quantifies the individual contributions of these factors. Results show that the impact of anthropogenic emission reductions due to COVID-19 was greater than that of meteorology or emission policies, particularly in February-March 2020.
Publisher
Scientific Reports
Published On
Dec 17, 2020
Authors
Yoon-Hee Kang, Seunghee You, Minah Bae, Eunhye Kim, Kyuwon Son, Changhan Bae, Yoonha Kim, Byeong-Uk Kim, Hyun Cheol Kim, Soontae Kim
Tags
COVID-19
PM2.5
emission reductions
Northeast Asia
air quality

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