Delhi’s air world’s most polluted on November 1 morning post-Diwali: AQI of top 10 cities
New Delhi was ranked the world’s most polluted city on Friday morning, November 1, a days after Diwali celebrations pushed air quality to hazardous levels, according to Swiss firm IQAir. Despite a ban on firecrackers, many residents celebrated with fireworks, adding to the thick smog that covered the city.