Sarajevo had the worst air quality in the world, on Thursday evening, said AirVisual on its web portal.
According to AirVisual, Sarajevo's Air Quality Index (AQI) stood at 464 at 7pm, making it the most polluted city in the world. The second worst was Dhaka, Bangladesh, whose AQI was 28, followed by Delhi, India, with 252 AQI.
The air with AQI reaching over 400 is considered extremely dangerous for the population and experts recommends staying inside.
AirVisual also predicts pollution to drop to acceptable levels in the coming days.
Up-to-date information on other cities can be seen HERE.