Lahore Air Quality Turns Hazardous as AQI Surges Above 500

Lahore’s air quality deteriorated to hazardous levels on Monday, with the city recording an Air Quality Index reading of 509 and appearing at the top of a global ranking of polluted major cities. The severe smog episode has renewed public-health concerns across Punjab as multiple urban centres reported dangerously elevated pollution.

The reported international ranking placed New Delhi second with an AQI of 221 and Cairo third at 201. Dhaka registered 167, Shanghai 161 and Kolkata 158. Because air-quality readings are updated continuously and can differ by monitoring station and time, the rankings and numerical values may change during the day.

Separate monitoring data showed Lahore’s AQI crossing 530 during the morning, with a reading of 535 recorded at around 8am. Fine particulate matter, known as PM2.5, reached approximately 343 micrograms per cubic metre. These microscopic particles can travel deep into the lungs and enter the bloodstream, making prolonged exposure particularly concerning.

The pollution emergency extended beyond Lahore. Gujranwala recorded readings above 600 and later climbed further during hourly updates, while Faisalabad and Multan were reported at around 310. Sialkot and Peshawar also registered unhealthy or hazardous air, indicating that the smog episode was affecting a broad area rather than the provincial capital alone.

Officials said polluted air moving from the direction of Amritsar and Attari was contributing to Lahore’s conditions. Authorities deployed smoke guns and water-spraying equipment in parts of the city to suppress airborne dust and particles. They also expected stronger winds to provide some temporary improvement by dispersing accumulated pollution.

Punjab Senior Minister Marriyum Aurangzeb appealed to farmers not to burn crop residue and encouraged residents to share vehicles to reduce traffic emissions. Agricultural fires, industrial activity, vehicle exhaust, construction dust and weak wind conditions can combine during the cooler months to trap pollutants close to the ground.

Satellite-based monitoring cited in a recent analysis detected more than 13,000 fire spots across Pakistani Punjab between October 1 and October 29, with the overwhelming majority associated with farmland. A large proportion of those detections occurred during the final week of October, intensifying concerns that crop-residue burning was adding to already difficult atmospheric conditions.

The latest spike follows claims that Lahore’s average air quality had improved during October compared with the previous year. Independent analysis, however, suggested that favourable weather accounted for much of the reported improvement, underscoring how quickly pollution can return when winds weaken and emissions accumulate.

The hazardous readings increase risks for the entire population, with children, older adults and people living with respiratory or cardiovascular conditions facing greater vulnerability. Continued monitoring, enforcement against major pollution sources and clear public guidance will be critical as Lahore and other Punjab cities move deeper into the annual smog season.