
Lahore and Karachi were among the top five most polluted cities in terms of air quality on Tuesday, according to monitoring platform IQAir. In past few years, air pollution has become one of the most pressing public health and environmental crises facing Pakistan. Various cities of the country, most notably Lahore, deal with smog especially in the winter months. The phenomenon is attributed mainly to industrial emissions, vehicular pollution, stubble burning and air movement. Ranked the world’s third most polluted city yesterday, Lahore rose to the second spot today with an air quality index (AQI) reading of 234 at 11am, categorised as “very unhealthy”. The provincial capital trailed just behind New Delhi, which had an “hazardous” AQI of 489. Karachi recorded an AQI of 182 at 11am, falling in the “unhealthy” range and just barely behind Kuwait’s capital at 183. India’s Mumbai came in at fifth with an AQI of 169. World’s 10 most polluted cities as ranked by IQAir, as of 11am on Oct 21, 2025. — screngrab via IQ...