Dhaka, the bustling capital of Bangladesh, is facing a serious air quality crisis. Recently, it ranked third among the world’s most polluted cities with an alarming Air Quality Index (AQI) of 189. This level is classified as ‘unhealthy,’ signaling a significant health risk for its residents.
For context, cities like Delhi, India, and Lahore, Pakistan, have been struggling with similar pollution issues, recording AQI values of 222 and 188, respectively. This suggests a troubling trend in air quality across South Asia.
The AQI scale helps us understand air quality levels. A score between 50 and 100 is ‘moderate.’ From 101 to 150, it’s considered ‘unhealthy for sensitive groups.’ Scores from 151 to 200 fall into the ‘unhealthy’ category, while levels above 300 are deemed ‘hazardous,’ which can severely impact health.
In Bangladesh, the AQI is determined by measuring five main pollutants: particulate matter (both PM10 and PM2.5), nitrogen dioxide, carbon monoxide, sulfur dioxide, and ozone. These contribute significantly to respiratory problems and other serious health issues.
Air pollution is not a new problem for Dhaka. It tends to worsen in the winter months and improve during the monsoon season. This seasonal variation reflects how weather changes can influence air quality.
According to the World Health Organization, around seven million deaths occur globally each year due to air pollution-related illnesses, including heart disease and stroke. This data underscores the urgency of improving air quality for public health.
Recent surveys show that many citizens are concerned about air pollution, with increased attention on how it affects daily life. People are turning to social media to share tips on reducing exposure and promoting awareness. Some are even adopting strategies like wearing masks and using air purifiers at home.
As we face the ongoing challenge of air pollution, it’s crucial to push for better policies and community actions that prioritize cleaner air. By understanding the sources and effects of pollution, we can work towards healthier living environments.
For more detailed information on air quality and its impacts, you can visit the [World Health Organization](https://www.who.int) website.
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