Dhaka recently ranked second among major cities worldwide for poor air quality, with an alarming AQI score of 227. This score means the air is classified as “very unhealthy.” Lahore, Pakistan, holds the top spot with an AQI of 406, while Kolkata and Delhi follow with scores of 218 and 212, respectively.
The Air Quality Index (AQI) helps us understand how polluted the air is and how it can affect our health. When the AQI value falls between 101 and 150, it’s unhealthy for sensitive groups. Scores between 150 and 200 are labeled “unhealthy,” while values over 200 are categorized as “very unhealthy,” with levels above 300 considered “hazardous.” Residents in these areas face serious health risks.
In Bangladesh, the AQI is determined by measuring five pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. Dhaka has long struggled with poor air quality, especially during the winter months. It tends to improve during the rainy season, but the underlying issues remain.
Air pollution is a critical global concern. According to the World Health Organization, it contributes to the deaths of about seven million people every year. This is mainly due to increased cases of stroke, heart disease, lung cancer, and respiratory infections.
The situation in Dhaka highlights a broader trend observed in many urban areas around the world. Experts note that cities with high levels of industrialization and traffic are often the most affected. Social media reactions have sparked discussions about the need for cleaner options and greater awareness of air quality. People are increasingly turning to air quality apps for real-time updates, reflecting a growing concern for our environment.
To tackle air pollution effectively, continuous efforts and policies are necessary. Innovations in technology, such as improved public transport systems and green energy solutions, can play a significant role in reducing air pollution. Understanding the risks and advocating for cleaner air can lead to healthier cities for everyone.
For more information, you can refer to the World Health Organization on air pollution and its effects.
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