<div style="text-align: justify; "><span style="font-size: 1rem;">With winter inching closer, Dhaka’s air quality continues to be in the 'unhealthy' zone.</span><br></div><div style="text-align: justify;"><br></div><div style="text-align: justify;">With an air quality index (AQI) score of 160 at 8.30am on Saturday, the metropolis ranked sixth in the list of world cities with the worst air quality.</div><div style="text-align: justify;"><br></div><div style="text-align: justify; ">Pakistan’s Lahore and India’s Delhi and Kolkata occupied the first three spots, with AQI scores of 439, 257 and 193, 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;">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.</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. UNB</div><div style="text-align: justify;"><br></div><div style="text-align: justify; ">bnbd24/kh</div>