Thursday, 23 March, 2023

Dhaka’s air still ‘unhealthy’

Dhaka's air quality is still in the 'unhealthy' zone on Sunday morning, reports UNB.

 With an air quality index (AQI) score of 172 at 9 am, the capital of Bangladesh ranked sixth in the list of cities worldwide with the worst air quality.

 Ghana's Accra, India's Delhi and Pakistan's Lahore occupied the first, second and third spots in the list, with AQI scores of 372, 254, and 197, respectively.   An AQI between 201 and 300 is said to be 'very unhealthy', while a reading of 301 to 400 is considered 'hazardous', posing serious health risks to residents.

 An AQI between 101 and 150 is considered 'unhealthy', particularly for sensitive groups.

 In Bangladesh, the AQI is based on five criteria pollutants -- Particulate Matter (PM10 and PM2.5), NO2, CO, SO2, and Ozone.