Dhaka, the bustling capital of Bangladesh, has made headlines for a troubling reason: it’s ranked 4th among the cities with the worst air quality. Just last Saturday morning, the Air Quality Index (AQI) hit a concerning score of 193, classifying the air as “unhealthy.”
In a global comparison, Dakar, Senegal, takes the top spot with an alarming AQI of 437, followed by Delhi and Kolkata in India with scores of 246 and 206, respectively. These metrics reveal a serious issue that extends beyond national borders, affecting millions’ health worldwide.
Understanding AQI is crucial. Values between 101 and 150 are labeled as “unhealthy for sensitive groups.” Scores between 151 and 200 fall into the “unhealthy” category, translating to potential health risks for everyone. The scale continues—301 and above is classified as “hazardous,” with severe implications for respiratory health.
The AQI for Dhaka is determined by monitoring five key pollutants: particulate matter (PM10 and PM2.5), NO2, CO, SO2, and ozone. These pollutants come from various sources, including vehicle emissions, industrial activity, and construction dust.
Air quality in Dhaka worsens, especially during the winter months, while the monsoon season tends to bring slight improvements. According to a study by the World Health Organization, air pollution was responsible for an estimated 4.2 million premature deaths worldwide in 2020, highlighting the urgent need for action.
Local experts stress the importance of addressing air quality. Dr. Farhana Khalid, an environmental health specialist, notes that “reducing emissions and increasing green spaces can significantly improve air quality and public health.” Her insight aligns with a rise in community-led initiatives focused on promoting cleaner air in urban areas.
Public response has varied; many residents express frustration on social media, sharing their struggles with daily pollution and health impacts. Some are calling for government intervention, while others advocate for individual actions, such as using masks and air purifiers.
In summary, Dhaka’s air quality issue is a pressing concern, emblematic of wider global challenges. Awareness and action are essential to combatting the health risks associated with pollution. With appropriate measures, there is hope for a cleaner future.
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