Reviewing the Crop Residual Burning and Aerosol Variations during the COVID-19 Pandemic Hit Year 2020 over North India

The north Indian states of Haryana and Punjab are believed to be the key sources air pollution in National Capital Region due massive agricultural waste burning crop harvesting seasons. However, with pandemic COVID-19 hitting country, usual practices were disrupted. preventive lockdown led restricted vehicular industrial emissions caused labours leave business Punjab. With changed scenario 2020, present study investigates variations quality over Punjab, their relative impact on Delhi. work attempts understand change during 2020 its implication local both transported national capital utilises in-situ data for year 2019–2020 satellite observations MODIS aqua/terra fire counts, aerosol optical depth (AOD) back-trajectories run by hybrid single-particle Lagrangian integrated trajectory model (HYSPLIT).