Dhaka topped the list of cities with the worst air in the Air Quality Index (AQI) on Friday when the Valentine’s Day is being celebrated.
It had an AQI score of record 431 at 8am. The air was classified as ‘hazardous’.
The air quality improved with the passage of time as the score came down to 326 at 10:30am.
Nepal’s Kathmandu occupied the second spot in the list of cities with the worst air quality with AQI scores of 203.
An AQI score is between 301 and 500 implies health warnings of emergency conditions and the entire population is more likely to be affected.
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.
In Bangladesh, the AQI is based on five criteria pollutants – Particulate Matter (PM10 and PM2.5), NO2, CO, SO2 and Ozone (O3).
Right now, the level of PM2.5 in the air of Dhaka is 275.3 micrograms per cubic metre.
Physicians advised for not venturing outside without necessity, and wearing masks and keeping children safe.