City Desk :
Dhaka’s air quality was marked “unhealthy” on Tuesday morning.
With an air quality index (AQI) score of 159 at 9:05am, Dhaka ranked 5th on the list of cities worldwide with the worst air quality.
India’s Delhi, Nepal’s Kathmandu and Indonesia’s Medan occupied the first three spots in the list, with AQI scores of 177, 172 and 168, respectively, reports UNB.
In Bangladesh, the AQI is based on five criteria pollutants — Particulate Matter (PM10 and PM2.5), NO2, CO, SO2 and Ozone.
