Lahore’s AQI Surges Past 400 as Toxic Smog Grips Punjab

Lahore was ranked as the world’s most polluted major city on Sunday morning as a dense layer of smog pushed air-quality readings into the hazardous range. The worsening conditions raised immediate health concerns for millions of residents across the provincial capital and other parts of Punjab.

The international air-quality ranking recorded Lahore’s Air Quality Index at 420. Punjab’s monitoring system reported an even higher citywide reading of 478 at 7am, illustrating how pollution measurements can vary between monitoring networks, locations and reporting times while still indicating extremely dangerous conditions.

Gujranwala registered Punjab’s highest reported reading at 500, followed by Lahore at 478. Sheikhupura recorded 336, Nankana Sahib 326, Dera Ghazi Khan 317 and Hafizabad 312, while elevated pollution was also reported in Jhang and Khushab.

Several monitoring stations within Lahore reached readings of 500. Barki Road, Shahdara, Kahna Nau, Multan Road, Punjab University, GT Road, Gulberg III, Wagah Border and Egerton Road were identified among the locations experiencing the most severe deterioration.

An AQI reading above 300 is classified as hazardous and can affect healthy people as well as vulnerable groups. Children, older residents, pregnant women and people with asthma, cardiovascular disease or other respiratory conditions face particularly serious risks when exposed to high concentrations of airborne pollutants.

Weather conditions appeared to restrict the dispersal of pollution during the morning. Lahore recorded a temperature of approximately 19 degrees Celsius, relative humidity of 84 per cent and wind speeds of only 0.3 metres per second at 7am, creating conditions in which emissions and fine particles could remain trapped close to the ground.

Vehicle exhaust, industrial emissions, construction dust and burning activity are among the factors that commonly contribute to Punjab’s recurring smog crisis. The problem typically intensifies during cooler months when weak winds and atmospheric conditions prevent pollutants from dispersing efficiently.

Residents have been advised to reduce unnecessary outdoor activity, avoid strenuous exercise in open spaces and keep doors and windows closed where possible. Those required to travel outdoors can reduce exposure by using well-fitting protective masks, while anyone experiencing breathing difficulty, chest discomfort or persistent coughing should seek medical assistance.

Air-quality readings can change rapidly as wind, temperature and local emissions fluctuate. Continued monitoring and stronger enforcement against major pollution sources will remain essential as Lahore and surrounding districts enter the period in which smog episodes are usually most persistent.