Global Air Pollution Rankings 2024: Bangladesh Ranked as the Most Polluted; Check India’s Position

Pollution has become a pressing global issue, with air quality deteriorating in many parts of the world. In 2024, Bangladesh retained its position as the most polluted country globally, followed by Pakistan, India, Tajikistan, and Burkina Faso. These rankings highlight the urgent need for global action to combat air pollution, which is responsible for millions of premature deaths each year.

1. Bangladesh: The World's Most Polluted Country

Bangladesh consistently ranks as the most polluted nation. In 2024, the country recorded the highest population-weighted PM2.5 concentration at 79.9 micrograms per cubic meter (µg/m³), far exceeding the World Health Organization's (WHO) recommended guideline of 5 µg/m³. Rapid urbanisation, heavy reliance on fossil fuels, and industrial emissions contribute significantly to Bangladesh’s pollution levels. Dhaka, the capital, often faces severe smog, particularly during the dry season, leading to widespread health problems.

2. Pakistan

Pakistan's pollution levels continue to be alarming, with a PM2.5 concentration of 73.7 µg/m³. Lahore and Karachi, the country’s largest cities, experience hazardous air quality regularly. The pollution is largely driven by vehicular emissions, industrial activities, and the burning of solid fuels for cooking in rural areas. Pakistan’s struggle to improve air quality is compounded by a lack of regulatory enforcement and public awareness.

3. India

India ranks third globally in terms of pollution. In 2023, the country’s average PM2.5 concentration was 54.4 µg/m³, more than ten times the WHO’s safe limit. Northern India, particularly the National Capital Region (NCR), suffers from some of the worst air quality in the world. Cities like New Delhi and NCR region are routinely listed among the most polluted cities globally. Factors contributing to India’s pollution crisis include industrial emissions, vehicular traffic, and seasonal agricultural burning. Despite efforts to improve air quality, pollution levels in India continue to pose a significant health threat to its population, with over 1.36 billion people at risk.

4. Tajikistan

In fourth place, Tajikistan recorded a PM2.5 concentration of 49.0 µg/m³, around nine times higher than the WHO guideline. The country's mountainous geography limits air circulation, trapping pollutants, while industrial emissions and the widespread use of coal for heating exacerbate the situation. Additionally, urbanisation in cities like Dushanbe contributes to poor air quality.

5. Burkina Faso

Burkina Faso rounds out the top five, with a PM2.5 level of 46.6 µg/m³. Factors contributing to the country’s pollution include desertification, dust storms, and the burning of biomass for cooking and heating. These environmental challenges, combined with limited pollution control measures, result in high pollution levels that endanger public health.

In conclusion, pollution, particularly air pollution, continues to pose significant health risks in several countries, with Bangladesh, Pakistan, India, Tajikistan, and Burkina Faso ranking as the worst affected. Addressing these issues requires coordinated efforts at both national and international levels, along with stricter enforcement of pollution control measures.