Delhi's air quality index on Saturday remained in the 'poor' category for the second consecutive day, with a reading of 233, according to the Central Pollution Control Board (CPCB). The figure, however, was a slight increase from Friday's 218, but down from 373 on Thursday.

Data from the CPCB-developed Sameer app indicated that while the AQI hovered between the 'moderate' and 'poor' category, Wazirpur in north Delhi was the most polluted area, with a reading of 323, which falls in the 'very poor' category.

According to the CPCB, an AQI between 0 and 50 is considered good, 51-100 satisfactory, 101-200 moderate, 201-300 poor, 301-400 very poor, and 401-500 severe.

Several areas like Pusa (185), Lodhi Road (177), IGI Airport T3 (175), Mathura Road (158) and Dr Karni Singh Shooting Range (1

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