Lahore tops global pollution rankings as AQI hits hazardous levels

Lahore has been identified as the world's most polluted major city, with its air quality deteriorating to hazardous levels, according to Swiss air quality monitoring platform IQAir. The city's air quality index (AQI) reached a staggering 410 at one point on Friday morning, which classified it under the "hazardous" category. New Delhi in India followed closely behind with an AQI of 203, while Dakar in Senegal was recorded at 196.

Medical professionals have advised Lahore residents to wear masks while outdoors to minimize exposure to the air pollution. IQAir further suggested avoiding outdoor exercise, keeping windows shut, and utilizing indoor air purifiers to combat the issue. The platform pinpointed fine particulate matter, known as PM2.5, as the primary pollutant in Lahore.

PM2.5 comprises minuscule airborne particles measuring 2.5 micrometres or less in diameter, which can infiltrate deep into the lungs. Chronic exposure to these particles can significantly elevate the risk of serious health complications.

Air pollution has emerged as a significant environmental and public health issue in Pakistan, especially during the winter smog season in Lahore. Factors contributing to the problem include vehicle emissions, industrial pollution, crop-residue burning, and weather conditions that hinder the dispersion of pollutants. Notably, Lahore was the sole Pakistani city among the world's 20 most polluted cities listed on Friday morning.

Karachi, on the broader list, had an AQI of 110. IQAir's rankings are based on live readings that can vary throughout the day.