In the US Air Quality Index (AQI), measured at 9am on Sunday, Dhaka received a score of 208. Earlier while talking to the Dhaka Tribune, Department of Environment Director (Air quality management) Md Ziaul Haque said: “The air quality in Dhaka will continue to remain like this throughout February and March. “However, the quality of air will improve during the monsoon season.”The United States Environmental Protection Agency (EPA) developed the Air Quality Index to report air quality. An AQI value over 300 represents hazardous air quality and below 50 the air quality is good. The AQI debuted in 1968, when the National Air Pollution Control Administration undertook an initiative to develop an air quality index and to apply the methodology to Metropolitan Statistical Areas.

Source: Dhaka Tribune February 12, 2018 04:07 UTC