Dhaka’s air quality is “good” this morning. Few cars and public transport on the road, with today being a public holiday, could be the reason.
With an air quality index (AQI) score of 37 at 11am Sunday, Dhaka ranked 49th in the list of world cities with the worst air quality.
An AQI between 0 and 50 is considered “good,” 50 and 100 “moderate,” and 101 and 200 “unhealthy,” particularly for sensitive groups.
Similarly, an AQI between 201 and 300 is said to be “poor,” while a reading of 301 to 400 is considered “hazardous,” posing serious health risks to residents.
Pakistan’s Karachi, Serbia’s Belgrade, and Italy’s Milano occupied the first three spots in the list, with AQI scores of 159, 157, and 157, respectively.
Read: Dhaka’s air quality is ‘good’
AQI, an index for reporting daily air quality, is used by government agencies to inform 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.
Dhaka has long been grappling with air pollution issues. Its air quality usually turns unhealthy in winter and improves during the monsoon.
Air pollution consistently ranks among the top risk factors for death and disability worldwide. Breathing polluted air has long been recognised as increasing a person’s chances of developing heart disease, chronic respiratory diseases, lung infections and cancer, according to several studies.
According to the World Health Organization (WHO), air pollution kills an estimated seven million people worldwide every year, largely as a result of increased mortality from stroke, heart disease, chronic obstructive pulmonary disease, lung cancer and acute respiratory infections.
Source: United News of Bangladesh