File photo: Dhaka has ranked 24th on the world Air Quality Index Mehedi Hasan/Dhaka TribuneOn Saturday, it ranked 24th in the world for air pollution, down from 1st in FebruaryWith fewer vehicles are plying Dhaka's roads—because of the Eid holidays—and frequent rainfall, Dhaka's air quality has improved. It has ranked 24th on the world Air Quality Index (AQI) – a considerable leap from the top position it generally occupies among cities with the worst air pollution. Air quality further declines during the dry months—from October to April—but improves during the monsoon. The United States Environmental Protection Agency developed the Air Quality Index (AQI) to measure air quality. An AQI value over 300 represents hazardous air quality, and air quality below 50 is good.

Source: Dhaka Tribune June 08, 2019 09:00 UTC