Tag: World Aqi Rankings

Dhaka: The Air Quality Index (AQI) of Dhaka, one of the most polluted cities in the world, was on Sunday ranked as the worst in the world. In Bangladesh, the AQI is based on five pollutants: Particulate Matter (PM10 and PM2.5), NO2, CO, SO2 and Ozone, The Daily Star newspaper reported. At 10,24 a.m. on […]