A picture of Delhi’s regional air quality during diminished anthropogenic activities in the COVID-19 era

ABSTRACT: COVID-19 pandemic lockdown was imposed in 2020 and 2021 globally and in India, which created a temporary switch off for various anthropogenic activities, which helped in improving Delhi’s air quality drastically. The present study discusses air pollution reduction during that lockdown period compared to the previous year. The study tries to establish a comparison between various parameters like particulate matter (PM10, PM2.5), gaseous pollutants (SO2, NO2, CO, O3), and meteorological data (WS, WD, RH, AT, SR) during the year 2019 to 2021. The whole monitoring period is divided into four phases (P-I, P-II, P-III, and P-IV) based on stage-wise lockdown implementation. The data are analyzed using the R Studio version 1.3.1093. The PM10 concentration falls to 46.6% and 19.2% in 2020 and 2021,

SUBMITTER: Mohan V 

PROVIDER: S-EPMC9309452 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature