City Desk :
Dhaka, the overcrowded capital city of Bangladesh, has again topped the list of cities with the worst air quality with an AQI score of 239 at 8:33am on Tuesday.
The air was classified as “very unhealthy”, referring to a severe health threat, according to the AQI index. When the AQI value for particle pollution is between 50 and 100, air quality is considered “moderate”, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered “unhealthy for sensitive groups”, between 150 and 200 is “unhealthy”, between 201 and 300 is said to be “very unhealthy”, while a reading of 301+ is considered “hazardous”, posing serious health risks to residents. Vietnam’s Ho Chi Minh City, India’s Delhi and Vietnam’s Hanoi respectively occupied the second, third and fourth spots on the list.
