Atmos Pollut Res 2022 May 18;13(5):101419. Epub 2022 Apr 18.
Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen, 518055, PR China.
Atmospheric pollution studies have linked diminished human activity during the COVID-19 pandemic to improve air quality. This study was conducted during January to March (2019-2021) in 332 cities in China to examine the association between population migration and air quality, and examined the role of three city attributes (pollution level, city scale, and lockdown status) in this effect. This study assessed six air pollutants, namely CO, NO, O, PM, PM, and SO, and measured meteorological data, with-in city migration (WCM) index, and inter-city migration (ICM) index. Read More