Lahore Ranked World's Most Polluted City Amid Hazardous Smog

Lahore became the world's most polluted major city on November 8 and 9, 2026, as hazardous smog engulfed the Punjab province. Air Quality Index (AQI) readings in Lahore initially varied between 291 and 297 on Sunday, but surged by Monday, with some sources reporting overall levels between 519 and 590 and hourly peaks of 647. Localized spikes reached extreme levels, including 1,033 in Allama Iqbal Town and 898 in Gulberg II.

Government of Punjab, Pakistan responded to the crisis by closing schools and restricting the operating hours of markets and eateries. The Punjab Environment Protection Agency intensified crackdowns on stubble burning using drones, night squads, and firefighting teams. Other cities in the province also reported extreme pollution, with Nankana Sahib recording an AQI of 685 and Dera Ghazi Khan reaching 611.

Authorities attribute the toxic air to a combination of low-grade diesel fumes, seasonal crop-residue burning within Pakistani Punjab, and smoke from Diwali fireworks in Indian Punjab, all carried by easterly winds. Provincial authorities expect pollution levels to remain high through November 10, with potential improvements starting November 11. Medical experts have urged residents to wear protective masks and avoid unnecessary outdoor activities.