Bangladesh’s Air Crisis: Millions Breathing Danger Every Day

Bangladesh is facing a serious environmental and public health challenge due to its severe air pollution. Once considered a seasonal problem in urban areas, it has become a year-round crisis affecting health, economic productivity, and the environment. Thick smog, dust from construction, emissions from brick kilns, and vehicle exhaust have turned major cities like Dhaka and Chattogram into hazardous zones for millions of residents. Despite mounting scientific evidence, effective action to control pollution remains limited.
Global data underscores the severity. According to IQAir, Bangladesh ranked second in the world for worst air quality in 2024, with an average Air Quality Index (AQI) of 167, trailing only Chad. Pakistan and India rank just behind. By contrast, countries like Iceland maintain AQI scores below 20, demonstrating that clean air is achievable with regulation, clean energy, and monitoring.
The AQI measures the concentration of harmful air pollutants, including particulate matter (PM2.5 and PM10), nitrogen dioxide, sulphur dioxide, carbon monoxide, and ozone. PM2.5 is particularly dangerous because these tiny particles can penetrate deep into the lungs and bloodstream. AQI levels above 200 are considered very unhealthy, and above 300 are hazardous, putting entire populations at serious risk. During winter months, cities like Dhaka frequently exceed these dangerous levels.
The economic costs of polluted air are massive. World Bank and the United Nations Environment Programme research estimates that Bangladesh loses around 2.4 per cent of GDP annually due to health-related productivity losses, increased healthcare costs, and absenteeism. This equates to billions of dollars, with over 263 million workdays lost each year because of air pollution-related illnesses.
Air pollution is also a severe public health threat. The World Health Organization identifies it as one of the largest environmental risks globally, responsible for millions of premature deaths each year. Scientific research confirms the link between long-term exposure and disease. A study in Environmental Research found that PM2.5 exposure significantly increases the risk of cardiovascular disease, respiratory illness, and premature death, especially among children, the elderly, and people with pre-existing health conditions.
The impact on Bangladesh’s population is already alarming. According to the Institute for Health Metrics and Evaluation, more than 100,000 premature deaths occur each year due to air pollution. Hospitals report surges in patients with breathing difficulties, lung infections, and heart problems during periods of high pollution.
Children are particularly vulnerable. Their lungs and immune systems are still developing, making them highly sensitive to pollutants. Prolonged exposure increases the risk of asthma, pneumonia, and long-term respiratory problems. Women face both outdoor and indoor exposure; many households still use solid fuels like wood or biomass for cooking. Exposure during pregnancy increases the likelihood of premature birth and low birth weight, affecting child health. Men working outdoors, such as rickshaw pullers, street vendors, and traffic officers, face daily occupational hazards from polluted air.
Environmental consequences extend beyond human health. Polluted air damages crops, reduces soil fertility, contributes to acid rain, and lowers visibility, creating hazards for transport. Smog combined with seasonal fog increases the risk of road accidents, especially during winter.
Multiple sources drive Bangladesh’s pollution crisis. Brick kilns are a major contributor, with thousands operating using outdated technology that burns coal and low-quality fuels, releasing massive particulate matter. Vehicle emissions are another critical source. The number of vehicles has risen dramatically over the past two decades, yet emissions standards and inspections remain inconsistent. Old buses, trucks, and diesel engines release toxic gases in densely populated urban areas. Construction dust and industrial emissions further worsen air quality. A study in Atmospheric Pollution Research identifies urban traffic, construction dust, and industrial activity as the primary contributors to pollution in Bangladeshi cities. Despite regulations on brick kilns, vehicles, and industries, enforcement remains weak. Experts note that rapid urban development is often prioritised over environmental protection.

International experience shows that clean air is achievable. Cities in Europe and East Asia have successfully reduced pollution through strict emission standards, modern technology, expanded public transport, and public awareness campaigns. Bangladesh can follow these examples.
Practical steps include stricter regulation of brick kilns, transitioning to modern cleaner technologies, enforcement of vehicle emission standards, mandatory dust management at construction sites, and industrial air filtration systems with regular monitoring. Expanding urban green spaces can improve air circulation and reduce pollutants. Public awareness campaigns are essential to educate citizens about the risks of pollution and encourage protective measures.
The cost of inaction is too high. Air pollution endangers public health, reduces workforce productivity, increases healthcare expenditure, and threatens environmental sustainability. Clean air is not a luxury; it is a fundamental human right and a prerequisite for sustainable development.
Bangladesh can still reverse this trend, but decisive and coordinated action is required. Government agencies, industries, urban planners, and citizens must work together to resolve this environmental crisis. Strong regulations, modern technology, strategic urban planning, and public participation must form a comprehensive national approach. Those who violate environmental regulations should face accountability.
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The writer is Editor and CEO, News Network. He can be reached at [email protected]