The lockdown and social distancing measures put in place when Covid-19 infections first started spreading in India improved air quality. In Delhi – the national capital is among India’s most polluted cities – the average Air Quality Index (AQI) improved by 48% in April 2020 compared to April 2019.
These annual averages still suggest a gradual improvement over the years. Is it possible that this is due to measures taken for controlling pollution? A month-by-month comparison of air quality along with
