Published on : 21 Oct 2025, 2:43 am

Most monitoring stations within Delhi recorded air quality index (AQI) levels in the ‘Poor’ or ‘Very Poor’ categories on October 21, a day after the national capital celebrated Diwali, the festival of lights.

According to the Central Pollution Control Board, an AQI between 0 and 50 is considered good, 51 and 100 satisfactory, 101 and 200 moderate, 201 and 300 poor, 301 and 400 very poor, 401 and 450 severe, and above 450 severe-plus.

Among the 35 stations whose AQI Down To Earth accessed from the Indian Institute of Tropical Meteorology’s website, Bawana (418), Wazirpur (408) and Jahangirpuri (404) recorded levels that were ‘Severe’.

Shadipur (393), Burari Crossing (393), Ashok Vihar (386) and Punjabi Bagh (375) came next.

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