Muyabia Labony ; DHAKA – Despite recent rainfall, the air quality in the capital remains a concern. On Friday at 11:00 AM, Dhaka ranked 5th on the IQAir list of the world’s most polluted cities with a score of 107, categorizing the air quality as “Moderate.”
Global Rankings Today
Prague, the capital of the Czech Republic, topped the list today with a score of 133, which is considered unhealthy for sensitive groups. Other major cities in the top five include:
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Prague, Czech Republic: 133 (1st)
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Lahore, Pakistan: 133 (2nd)
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Delhi, India: 132 (3rd)
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Kolkata, India: 129 (4th)
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Dhaka, Bangladesh: 107 (5th)
Understanding the Air Quality Index (AQI)
The AQI is determined based on five criteria pollutants: particulate matter ($PM_{10}$ and $PM_{2.5}$), $NO_2$, $CO$, $SO_2$, and Ozone ($O_3$). The scoring system is categorized as follows:
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0–50: Good
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51–100: Moderate
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101–150: Unhealthy for sensitive groups
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151–200: Unhealthy
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201–300: Very Unhealthy
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301–400: Hazardous
Health Risks
Air pollution poses serious health risks for people of all ages. However, it is particularly dangerous for children, the elderly, sick individuals, and pregnant women.
When air quality reaches “Very Unhealthy” levels, health experts advise vulnerable groups to stay indoors and recommend that others limit their outdoor activities.