Özet:

One of the biggest catastrophes of the twenty-first century has emerged as a result of the COVID-19 epidemic. The novel SARS-CoV-2 coronavirus, which is the cause of COVID-19, has been quickly circulating over the entire world. In order to stop the fast spreading virus, the Indian government was compelled to proclaim a national lockdown. Examining air pollution trends in the city of Dehradun, Uttarakhand, is the aim of this study. Monitoring and predicting air quality measurements are becoming more and more important academic topics as urbanisation and industrialization continue to develop. Since employing this method would make it possible to determine the present and future effects of air pollution, effective air quality parameter modelling is essential. This study examined the effects of a brief lockdown over three chosen locations in Dehradun city from October 2019 to September 2020 on the air concentrations of SO2, PM10, PM2.5, and NO2. The outcomes demonstrate that the lockout significantly lowered the levels of SO2, PM10, PM2.5, and NO2 in the atmosphere.

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