Dhaka's air 2nd worst in world --

Dhaka has ranked second on the list of cities worldwide with the worst air quality with an AQI score of 187 at 9:09 am on Saturday, reports UNB.

Dhaka's air was classified as 'unhealthy', according to the air quality index.

India's Delhi, Pakistan's Lahore and Indonesia's Jakarta occupied the first, third and fourth spots on the list, with AQI scores of 212, 181 and 168, respectively.

When the AQI value for particle pollution is 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.

The AQI, an index for reporting daily air quality, informs people how clean or polluted the air of a certain city is and what associated health effects might be a concern for them.

The AQI in Bangladesh is based on five pollutants: particulate matter (PM10 and PM2.5), NO2, CO, SO2, and ozone.