<div style="text-align: justify; "><b style="font-size: 1rem;">The capital city's air quality continued to be in the 'unhealthy' zone on Wednesday morning.</b><br></div><div style="text-align: justify;"><br></div><div style="text-align: justify;">With an air quality index (AQI) score of 166 at 8:41 am on Wednesday, Dhaka ranked second in the list of cities worldwide with the worst air quality.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">An AQI between 151 and 200 is considered ‘unhealthy'.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">Indonesia’s Jakarta and Chile’s Santiago occupied the first and third spots in the list, with AQI scores of 173 and 157, respectively.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">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.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">In Bangladesh, the AQI is based on five criteria pollutants -- Particulate Matter (PM10 and PM2.5), NO2, CO, SO2 and Ozone.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">Dhaka has long been grappling with air pollution issues.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">As per 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. UNB</div><div style="text-align: justify;"><br></div><div style="text-align: justify; ">bnbd24/kh</div>