COVID-19 outbreak and air quality of Lahore, Pakistan: evidence from asymmetric causality analysis.

This paper aims to examine the impact of COVID-19 restrictions on the air quality of Lahore city of Pakistan for the period 26th February, 2020 to 31st August, 2020. The study employs asymmetrical Granger causality tests for analyzing the effects of COVID-19 cases and deaths on particulate matter (PM) emissions in the city. The results show positive shocks in COVID-19 cases and deaths improve the air quality of the city.