According to Swiss-based air quality monitoring organization IQAir, India’s capital Delhi has once again topped the global list of cities with the most polluted air. On the morning of November 16, Delhi recorded an air quality index (AQI) score of 559, placing it in the 'hazardous' category. Kolkata followed in second place with a score of 211, while Pakistan’s Lahore ranked third with the same score. Egypt’s Cairo took the fourth spot with a score of 202, and Bangladesh’s capital Dhaka ranked fifth with a score of 181, categorized as ‘unhealthy’. IQAir’s scale classifies air quality from ‘good’ (0–50) to ‘hazardous’ (above 300). The top ten most polluted cities recorded AQI scores between 160 and 180, reflecting widespread poor air quality across major urban centers in South Asia and beyond.