ISLAMABAD: Pakistan has installed its first locally designed smog cleaning tower in Lahore, a city that frequently ranks among the most polluted in the world during the winter season, the Environmental Protection Agency of Punjab announced this week.
Smog towers are large-scale air purifiers designed to reduce pollution by filtering out fine particulate matter and other harmful pollutants. Using fans, the towers draw in polluted air, which passes through high-efficiency filters to capture PM2.5 and PM10 particles, which pose severe health risks. The cleaned air is then released back into the surrounding area, improving local air quality.
While smog towers offer potential short-term relief, their efficacy in addressing large-scale urban air pollution remains debated.
“Pakistan’s first locally designed Smog Cleaning Tower installed in Lahore,” the provincial environmental agency said in a social media post this week. “A 15-day field test will be conducted to assess its performance for further installations.”
The smog tower, located in Mehmood Booti, is capable of purifying 50,000 cubic meters of air per hour and is designed to reduce harmful PM2.5 particulate matter.
Lahore, Pakistan’s second-largest city, suffers from severe air pollution during the winter, largely due to the phenomenon of smog. A combination of vehicle emissions, industrial output and crop burning in Punjab contributes to hazardous levels of fine particulate matter, with the city often topping global rankings for poor air quality.
Residents endure weeks of poor visibility, health warnings and respiratory illnesses as the Air Quality Index (AQI) frequently exceeds 300, categorized as “hazardous” by international standards. This year, the AQI reached unprecedented levels in several cities of Punjab, rising well over 1,000.
Smog towers can create localized zones of improved air quality, especially in high-density urban areas. However, they are expensive to build and maintain, with limited coverage areas.
