Karachis air quality index (AQI) surged to 212, making it the most polluted major city globally, according to the Swiss group IQAirs rankings as reported by The News International.
Lahore's air quality remains hazardous, with PM2.5 levels 29.4 times above WHO guidelines. AQI hits 306 on Bedian Road. Lahore tops Pakistan's pollution list, followed by Peshawar. Meteorologists ...