Air quality change and public perception during the COVID-19 lockdown in India.

ABSTRACT: This study aims at analyzing the change in air quality following the COVID-19 lockdown in India and its perception by the general public. Air quality data for 100 days recorded at 193 stations throughout India were analyzed between 25th March to 17th May 2020. A nationwide online survey was conducted to obtain public perceptions of air quality improvement (n=1750). On average, approximately 40% improvement in the air quality index was observed, contributed by a reduction in 40% of PM₁₀, 44% of PM_2.5, 51% of NO₂ and 21% of SO₂. There was a significant difference between the levels of all the pollutants before and after the lockdown (p<0.05), except ozone. The correlation between PM₁₀ and PM_2.5 with ozone was significant after

SUBMITTER: Sekar A 

PROVIDER: S-EPMC9065608 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature