Lahore has once again topped the list of the world's most polluted cities, with air quality levels reaching hazardous levels.
According to the Environmental Protection Agency (EPA), Lahore's Air Quality Index (AQI) surged to 332, placing it in the "hazardous" category.
The Environmental Protection Agency (EPA) classifies Air Quality Index (AQI) readings as follows:
Lahore's air quality is hazardous.
Author's summary: Lahore is the world's most polluted city.