Air pollution still remains one of the top-most challenges for Bangladesh, and among cities around the world, Dhaka’s air quality has been ranked as the most polluted this morning.
The capital's air quality index (AQI) was recorded at 382 at 10:10am today.
India's Kolkata, Pakistan's Karachi and India's Delhi occupied the next three spots, with AQI scores of 236, 176, and 173, respectively.
An AQI between 201 and 300 is said to be 'poor', while a reading of 301 to 400 is considered 'hazardous', posing serious health risks to residents.
In Bangladesh, the AQI is based on five criteria pollutants -- Particulate Matter (PM10 and PM2.5), NO2, CO, SO2 and Ozone.
Read: Experts lament lack of steps to check air pollution in Dhaka city
Dhaka has long been grappling with air pollution issues. Its air quality usually turns unhealthy during winter.