The impact of air pollutant emissions during the COVID-19 pandemic on Air quality in China

Abstract

The outbreak of COVID-19 has led to the adoption of a series of strict epidemic prevention and control measures across the country, which has had a significant impact on people's production and life patterns. It also provides an opportunity to explore the relationship between air quality and human social and economic activities. Based on the National Urban Air Quality Report from February 2019 to February 2021 and passenger transport capacity data from February 2019 to February 2021, the regression analysis was conducted to understand how human factors related to pollution sources affect ambient air quality levels. The study showed that passenger volume and air pollution levels decreased significantly during the epidemic period. Human factors had no significant impact on O3 concentration. However, they had a significant impact on PM, SO2, NO2, and CO. Finally, explore how to improve air quality from the Angle of human factors and build a low-carbon economy.