On Wednesday morning, Dhaka, the bustling capital of Bangladesh, topped the list of the world’s most polluted cities, recording an Air Quality Index (AQI) score of 305. This places the air quality in the ‘very unhealthy’ category, signaling a serious health risk for its residents.
Following Dhaka, Cairo, Kolkata, and Ulaanbaatar ranked second, third, and fourth, with AQI scores of 267, 226, and 214, respectively. To put it in context, an AQI score between 50 and 100 is considered ‘moderate’, while anything above 300 is deemed ‘hazardous’, posing significant health threats.
The AQI gives daily updates on air quality, helping people understand how polluted or clean the air is. In Bangladesh, the AQI is based on five main pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone.
Historically, Dhaka has faced ongoing air pollution challenges. The situation worsens, especially in winter, while the monsoon season usually brings some relief. This cycle highlights the need for effective environmental policies and measures to reduce air pollution.
Recent studies indicate that air pollution contributes to approximately seven million deaths globally each year. This staggering number emphasizes the urgent need for awareness and action. For instance, a report by the World Health Organization states that air pollution is a top cause of health issues like stroke, heart disease, and lung cancer.
Public reaction to such alarming AQI levels often floods social media, with many sharing personal experiences and health concerns related to air quality. Some residents engage in discussions about potential solutions, such as the use of air purifiers, government regulations on emissions, and community clean-up initiatives.
Overall, the struggle against air pollution in Dhaka is ongoing, but the conversation around it is gaining momentum. Keeping an eye on air quality reports and advocating for cleaner air can help protect public health.
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