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Effect of COVID-19 on air pollution and respiratory viral infection of children in South Korea
Air pollution can be a risk factor for respiratory viral transmission and infection. The COVID-19 outbreak in 2020 may have affected ambient air pollution levels. Therefore, this study aimed to investigate air pollution levels and respiratory virus infection rates before and after the COVID-19 pandemic as well as determine relationships between these factors. Methods: The daily mean temperature and concentrations of air pollutants (PM2.5, PM10, O3, NO2, CO, and SO2) in five metropolitan citiesdoi:10.22541/au.161167516.63010319/v1 fatcat:bfarsghrhvhtbmahjztasl2vgy