New Delhi, Feb. 14 -- The national capital's air quality slightly deteriorated on Saturday, with the Air Quality Index (AQI) recorded at 197 at 8.30 am, placing it in the 'moderate' category, according to the Central Pollution Control Board (CPCB).

Anand Vihar recorded a 'poor' AQI of 265, while RK Puram also reported a 'poor' AQI of 247. In contrast, IGI Airport T3 Delhi recorded an AQI of 176, classified as 'moderate' per CPCB data.

As per AQI classification, a reading between 0 and 50 is considered 'good', 51 to 100 'satisfactory', 101 to 200 'moderate', 201 to 300 'poor', 301 to 400 'very poor', and 401 to 500 'severe'.

On Friday, AQI readings in other areas included Mundka at 230, Shadipur at 248, Nehru Nagar at 207, Rohini at 221...