Dhaka, the bustling capital of Bangladesh, recently ranked fifth for the worst air quality worldwide, with an Air Quality Index (AQI) score of 164. This level of pollution is classified as ‘unhealthy,’ signaling a serious health threat.
The city’s air has been troubling for several days, especially as winter settles in. It’s no surprise that air quality usually worsens this time of year. In fact, according to the AQI system, here’s how pollution levels are categorized: a score of 50-100 is ‘moderate,’ 101-150 is ‘unhealthy for sensitive groups,’ while scores between 150-200 and above indicate ‘unhealthy’ and ‘very unhealthy’ conditions, respectively. Readings above 301 are hazardous and pose significant health risks.
Other cities facing similar challenges include Delhi in India, Lahore in Pakistan, and Kinshasa in the Democratic Republic of the Congo, which topped the list with AQI scores of 277, 244, and 192, respectively.
The AQI is crucial for understanding air quality. It tracks five main pollutants: particulate matter (PM2.5 and PM10), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. These pollutants can contribute to serious health issues, from chronic respiratory diseases to heart problems.
Air pollution is not just a local concern. According to the World Health Organization, about seven million people die each year due to pollution-related issues globally. This alarming statistic underlines why air quality monitoring matters.
Historically, Dhaka has struggled with air pollution, particularly in winter. Interestingly, the city’s air tends to improve during the monsoon season. This seasonal pattern highlights the critical role rainfall plays in cleansing the air.
Many residents are frustrated and concerned. Social media reflects their worries, with trending discussions on air quality and health risks echoing across platforms. The time for action is now—awareness and solutions must be prioritized if we want to breathe easier in the future.
For more insights into global air quality issues, consider checking reports from the WHO [here](https://www.who.int/). Understanding the state of our air is essential for our health and well-being.
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