<div style="text-align: justify; "><span style="font-size: 1rem;"><b>Dhaka ranked the worst world city in the Air Quality Index on Tuesday morning even though light rains drenched the capital and elsewhere.</b></span><br></div><div style="text-align: justify; "><br></div><div style="text-align: justify;">The city's Air Quality Index (AQI) recorded scores of 244 around 09.25am and its air quality was still classified as ‘ very unhealthy’.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">Dhaka’s air quality usually turns unhealthy during the winter and improves during monsoons.</div><div style="text-align: justify;"><br></div><div style="text-align: justify;">Pakistan's Lahore and India's Delhi occupied the next two spots, with AQI scores of 191, and 190, 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;">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.</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>