COVID-19 lockdown closures of emissions sources in India: Lessons for air quality and climate policy.

ABSTRACT: Reduced anthropogenic activities during the COVID-19 pandemic caused significant reductions in ambient fine particulate matter (PM_2.5), SO₂ and NO_x concentrations across India. However, tropospheric O₃ concentrations spiked over many urban regions. Moreover, reductions in SO₂ and NO_x (atmospheric cooling agents) emissions unmask heating exerted by warming forcers. Basing governmental guidelines, we model daily emissions reductions in CO₂ and short-lived climate forcers (SLCFs) during different lockdown periods using bottom-up regional emission inventory. The transport sector, with maximum level of closure, followed by power plants and industry reduced nearly -50% to -75% emissions of CO₂, primary PM

SUBMITTER: Tibrewal K 

PROVIDER: S-EPMC8576099 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature