Delhi beats Lahore as world's most polluted city after air quality turns 'hazardous' with AQI at 494
PTC News Desk: Delhi on Friday overtook Lahore in Pakistan to become world's most polluted city with air quality plunging into hazardous levels and visibility dropping as smog blanketed the city of 20 million people.
Delhi’s air quality deteriorated to hazardous levels on Friday morning, with the overall Air Quality Index (AQI) touching 494 at 7:31 am
- PTC NEWS
