Dhaka Grapples with Worsening Air Quality as Winter Sets In

Dhaka, the capital of Bangladesh, has once again topped global rankings for the worst air quality as the winter season intensifies, raising serious public health concerns. On Tuesday morning, the Air Quality Index (AQI) for Dhaka soared to 274, placing it in the 'very unhealthy' category, according to data from IQAir and local environmental monitoring agencies. This marks a recurring trend for the city, which regularly experiences hazardous air pollution levels during the cooler months from November to February.

The primary contributors to Dhaka's deteriorating air include vehicular emissions, industrial smoke from brick kilns operating illegally around the city, and construction dust. The lack of rainfall and cooler temperatures during winter trap pollutants close to the ground, creating a thick smog that reduces visibility and exacerbates respiratory problems. Local hospitals have reported a surge in patients suffering from asthma, bronchitis, and other lung-related ailments, with children and the elderly being the most vulnerable.

In response, the Bangladesh government has implemented emergency measures, including the temporary closure of some brick kilns and stricter enforcement of emission standards for vehicles. However, environmental activists argue that these steps are insufficient. "Every year we see the same pattern—a spike in pollution and then temporary fixes," said Dr. Shahriar Hossain, an environmental scientist at Dhaka University. "What we need is a year-round strategy that addresses the root causes, such as transitioning to cleaner energy sources and improving public transport."

Internationally, Dhaka's plight mirrors a broader crisis in South Asia, where cities like New Delhi, Lahore, and Kathmandu also face severe winter pollution. The World Health Organization has repeatedly warned that air pollution is responsible for millions of premature deaths annually in the region. Bangladesh ranks among the most polluted countries globally, with an average AQI often exceeding 150, which is considered unhealthy for all population groups.

Residents in Dhaka have taken to social media to express frustration and share survival tips, such as wearing N95 masks and using air purifiers at home. "I can't even open my windows in the morning without coughing," said Fatima Begum, a schoolteacher living in the city's Mirpur area. "The government must act now before it's too late."

Efforts to combat pollution have seen some progress, including the introduction of electric rickshaws and a ban on older, high-emission vehicles in certain zones. But experts say enforcement remains weak due to corruption and lack of political will. The High Court has also intervened, ordering authorities to submit reports on pollution control measures, though compliance has been mixed.

Looking ahead, the Bangladesh Meteorological Department predicts that the current weather pattern, characterized by low wind speeds and high humidity, will persist for at least another week, meaning the smog is unlikely to dissipate soon. As the crisis deepens, calls for a regional cooperation framework to tackle transboundary pollution are growing louder. Environmental groups urge Dhaka to work closely with neighboring countries to address shared sources, such as agricultural burning and industrial emissions.

For now, millions of Dhaka residents continue to endure the health risks, hoping for a long-term solution that goes beyond seasonal band-aids. The city's struggle with air pollution serves as a stark reminder of the environmental challenges facing rapidly urbanizing nations in the developing world.