Lahore Tops Global Air Pollution Rankings
News Desk
LAHORE: Lahore has emerged as the world’s most polluted city, with its Air Quality Index (AQI) reaching 194 amid a rise in air pollution levels, according to global air-quality monitors.
The city’s overall AQI was recorded at 194, placing Lahore at the top of the global list of cities with the highest levels of air pollution.
Pollution levels varied across the city, with an AQI of 210 recorded in Allama Iqbal Town, 207 on Barki Road, 187 in Model Town, 187 on Bedian Road and 186 in Defence.
Global monitoring data indicated that Lahore’s air pollution has increased during the week, while the city’s AQI was reported to be around 19 times higher than the World Health Organization’s recommended air-quality guideline.
Medical experts have advised residents to limit exposure to polluted air by keeping doors and windows closed. Motorcyclists have also been urged to wear protective masks while travelling outdoors.
What is smog?
Smog is a form of air pollution created by a combination of smoke, fog and other pollutants. The term is derived from the words “smoke” and “fog.”
Smog can contain pollutants including nitrogen oxides, sulfur oxides, ozone and carbon monoxide. It typically develops when pollutants released into the atmosphere react with sunlight and heat under stagnant weather conditions.
Heavy traffic, industrial emissions, high temperatures, sunlight and low wind speeds can contribute to the formation and persistence of smog. During winter, stagnant air can trap smoke and other pollutants close to the ground, worsening air quality.
Health risks of smog
Prolonged exposure to polluted air can adversely affect human health, particularly the respiratory system. Smog can cause eye irritation, coughing, throat irritation and chest discomfort and may aggravate existing respiratory conditions.
Short-term exposure to high levels of air pollution can also trigger asthma symptoms, particularly among vulnerable people.
Children, older adults and people with pre-existing respiratory conditions are considered particularly vulnerable to the health effects of severe air pollution.
Experts generally recommend reducing outdoor exposure during periods of poor air quality and taking appropriate precautions when travelling or working outdoors.
