Dhaka Faces Growing Air Pollution Crisis as Winter Approaches

Dhaka, the capital of Bangladesh, is grappling with a severe deterioration in air quality as the winter season sets in, raising public health concerns and prompting calls for urgent government action. According to the latest data from the Department of Environment, the Air Quality Index in several parts of the city has crossed the 200 mark, categorizing the air as 'unhealthy' for all residents. This marks a significant spike from the moderate levels recorded during the monsoon months.

The primary sources of pollution in Dhaka have been identified as vehicular emissions, industrial smoke, and construction dust. The city's rapid urbanization, with a population exceeding 20 million, has exacerbated the problem, as traffic congestion and unregulated brick kilns around the outskirts continue to release harmful particulate matter, including PM2.5 and PM10. Experts warn that prolonged exposure to such pollutants can lead to respiratory illnesses, cardiovascular diseases, and other chronic health conditions.

Local environmental groups have been vocal in demanding stricter enforcement of existing regulations. The Bangladesh Environmental Lawyers Association has filed a petition with the High Court, seeking immediate measures to curb pollution, including a ban on older vehicles and the relocation of polluting industries away from residential areas. In response, the government has announced plans to introduce a real-time air quality monitoring system and expand the use of compressed natural gas in public transport.

Residents of Dhaka have expressed growing frustration. 'Every morning, I wake up to a thick haze, and my children have started coughing,' said Fatima Begum, a schoolteacher living in the Mirpur area. 'We need clean air to live, but it feels like the authorities are not doing enough.' Similar sentiments were echoed by rickshaw puller Abdul Karim, who noted that his eyes burn after a day's work on the streets.

The crisis is not limited to Bangladesh alone. Internationally, Dhaka's air quality has been a recurring concern for organizations like the World Health Organization, which ranks it among the most polluted cities in the world. The issue has also drawn attention from neighboring countries, as transboundary haze from agricultural burning in India and Nepal sometimes worsens conditions in the region. Climate experts emphasize that tackling air pollution requires regional cooperation and long-term planning.

Efforts to address the problem have included the introduction of a 'Clean Air Act' in 2022, but implementation has been slow. The government has also launched a tree-planting campaign and promoted the use of electric vehicles, though these initiatives remain in their infancy. Critics argue that without a comprehensive approach that targets both sources of pollution and public awareness, the situation will only worsen.

As winter deepens, the phenomenon of temperature inversion traps pollutants close to the ground, leading to prolonged smog episodes. The Department of Environment has advised residents to wear masks and limit outdoor activities during peak pollution hours. Schools have been urged to consider adjusting schedules to minimize children's exposure.

The coming months will test Bangladesh's resolve to tackle this environmental challenge. For now, Dhaka's citizens continue to endure the haze, hoping for clearer skies and a healthier future.