<div style="text-align: justify; "><span style="font-size: 1rem;"><b>Air pollution still remains one of the top-most challenges for Bangladesh and Dhaka was ranked as the fifth most polluted city in the world with ‘unhealthy’ air quality on Wednesday (November 23, 2022) morning.</b></span><br></div><div style="text-align: justify; "><br></div><div style="text-align: justify; ">Dhaka’s air quality index (AQI) score was 196 at 9.15 am today.</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; ">Pakistan’s Lahore, Iraq's Baghdad and India’s Delhi occupied the first and third spots in the list, with AQI scores of 306, 255 and 223, respectively.</div><div style="text-align: justify; "><br></div><div style="text-align: justify; ">An AQI between 101 and 200 is considered 'unhealthy', particularly for sensitive groups.</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. UNB</div><div style="text-align: justify; "><br></div><div style="text-align: justify; ">bnbd24/kh</div>