Dhaka Ranks as the 4th Most Polluted City: What an AQI Score of 155 Means for Your Health

Dhaka, the bustling capital of Bangladesh, recently found itself ranked fourth in air quality, with an AQI score of 155 early Thursday. This level indicates ‘unhealthy’ air, highlighting a significant health threat.

The Air Quality Index (AQI) measures daily air pollution levels. When scores are between 50 and 100, air quality is considered ‘moderate.’ Those over 100 begin to pose risks, especially to sensitive groups. An AQI score of 150 to 200 is ‘unhealthy,’ while 201 to 300 is ‘very unhealthy.’ Scores above 300 are ‘hazardous’ and can severely affect health.

Delhi, Lahore, and Beijing top the list, with AQI scores of 204, 202, and 174 respectively. These cities also struggle with severe pollution, often during winter months.

In Bangladesh, the AQI is based on five pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. Dhaka has faced air pollution challenges for years, especially during winter. Yet, improvements can typically be seen during the monsoon season.

According to the World Health Organization, air pollution is responsible for about seven million deaths globally each year, linked primarily to heart disease, stroke, and respiratory infections. This highlights a major public health concern not just in Dhaka, but around the world.

Addressing air quality issues requires urgent action. Experts suggest that investments in cleaner technologies and public transport could significantly improve air quality. According to a recent survey, over 60% of Dhaka residents have expressed concern about air pollution, emphasizing the need for effective solutions.

In today’s world, social media trends also reflect growing awareness. Many users share tips for protecting health during high pollution days, spreading information that empowers communities to take action.

Ultimately, ongoing dialogue and collaboration among governments, communities, and organizations are vital in tackling air pollution. For further information about air quality and health, visit the [World Health Organization](https://www.who.int/news-room/fact-sheets/detail/ambient-(outdoor)-air-quality-and-health).

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