The air quality in the city was back in the 'very poor' category on Wednesday (January 7, 2026) with an AQI reading of 336, according to data from the Central Pollution Control Board's Sameer app.

Station-wise data showed that Nehru Nagar recorded the worst air quality at 360 in the 'very poor' category. While 21 stations logged 'very poor' air quality, 14 stations were in the 'poor' category and two stations recorded 'moderate' air quality.

Delhi AQI remains ‘poor’, shallow fog observed

The city recorded poor air quality on Tuesday (January 6, 2026).

According to the CPCB classification, an AQI 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'.