Dhaka, the bustling capital of Bangladesh, has recently been highlighted as one of the world’s most polluted cities. Just last Thursday morning, it clocked an alarming air quality index (AQI) of 257, marking it as ‘very unhealthy,’ according to IQAir.
Following Dhaka in pollution levels were Cairo, Egypt at 223, Kolkata, India at 222, Ulaanbaatar, Mongolia at 199, and Hanoi, Vietnam. These scores indicate serious air quality issues affecting millions.
The AQI helps us understand air quality by measuring five main pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. A score between 50 and 100 is ‘moderate,’ but anything above 100 poses health risks, particularly for sensitive groups.
Long-term exposure to polluted air can lead to significant health issues. The World Health Organization estimates that air pollution is responsible for around seven million deaths worldwide each year. The main culprits include stroke, heart disease, and lung cancer.
Many residents have voiced their concerns on social media, sharing stories of respiratory problems and urging the government to take action. Local initiatives for better air quality have gained traction, especially as citizens express frustration over the persistent pollution.
Historically, Dhaka’s air quality worsens during winter due to temperature inversions that trap pollutants close to the ground, while it’s typically better during monsoon seasons. Recent studies suggest urbanization and increased vehicle emissions are major contributors to the city’s ongoing pollution crisis.
Addressing air quality in Dhaka involves collective efforts from the government and citizens. Experts recommend investing in green infrastructure, improving public transport, and promoting cleaner energy sources. Understanding the urgency of this situation may help foster a united approach to solve the growing threat of air pollution.
For those interested in tracking air quality, organizations like [IQAir](https://www.iqair.com/world-air-quality) provide real-time data and insights. Staying informed is crucial for protecting health amidst rising pollution levels.
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