Impact of COVID-19 on Black Carbon and Carbon Monoxide Levels and Its Health Risk Assessment Over East India

Abstract

The present research aims to describe the measurement of the changes in air pollutants like black carbon (BC), PM 2.5 and CO concentrations levels, and estimation of their source apportionment and health risk during normal period (NP) as well as lockdown period (LP) in Jamshedpur city. In India, almost all anthropogenic activities are prohibited after announcement of lockdown on 25th March 2020 due to pandemic of COVID-19. The urban atmospheric pollutants mostly BC, PM 2.5 and CO concentrations were observed gradual fall during LP. The averaged mass concentration of BC,