Delhi continues to battle severe air pollution, with the air quality index (AQI) remaining in the “severe” category for the third consecutive day. The AQI stands at 498, making Delhi the world’s second most polluted city, behind Lahore, Pakistan, which recorded an AQI of 770 at 7 am, according to IQAir, a Swiss air quality monitoring company.

PM IST Delhi's air quality turned 'severe' for the first time this season on Wednesday, with the AQI soaring to 418. The national capital also overtook the Pakistani city Lahore to become the world's most polluted city in Swiss group IQAir's live rankings.

Delhi and its neighbouring cities are experiencing pollution levels that are at least 30-35 times the safe limit recommended by the World Health Organization (WHO). Every year, De

Delhi overtook Pakistan ’s Lahore as the world’s most polluted city in Swiss group IQAir’s live rankings, with an air quality index (AQI) score of more than 1,000, which is considered “hazardous”, but India ’s pollution authority said the AQI was around 350.