Delhi experienced its cleanest air in almost two years on Tuesday, as persistent rain and favourable wind conditions pushed the city's air quality into the 'good' category for several hours.

This paper models the impact of LEZ on citywide tailpipe emissions in Chhatrapati Sambhajinagar Municipal Corporation in the state of Maharashtra, India.

In a big shift for Delhi's air quality this monsoon, five of Delhi's 13 pollution hotspots recorded 'Good' Air Quality Index (AQI) readings on Thursday - a first for the month of July.