Bangladesh's capital was again ranked the worst in Air Quality Index (AQI) on Sunday morning.
Dhaka had a score of 195 at 9 am, which means the city's air quality was classified as unhealthy.
When the AQI value is between 151 and 200, there is an increased likelihood of adverse effects and aggravation to the heart and lungs.
Dhaka ranked worst in AQI on Friday morning with a score of 245, indicating that the air quality was 'very unhealthy'.
The AQI, an index for reporting daily air quality, tells people how clean or polluted the air of a certain city is, and what associated health effects might be a concern for them.
Bangladesh's overcrowded capital has been grappling with air pollution for a long time. The quality usually improves during monsoon.