This came after the overall Air Quality Index (AQI) of the national capital fell into the ‘severe’ category for the first time this season.

Amid worsening air pollution in Delhi, authorities implemented Stage III of the Graded Response Action Plan (GRAP) with immediate effect on Tuesday. This came after the overall Air Quality Index ( AQI ) of the national capital fell into the ‘severe’ category for the first time this season, rising from 362 on Monday to 425 (as of 9 am) on Tuesday.

Data from the Central Pollution Control Board (CPCB)’s Sameer app showed that at 7 am on Tuesday, 34 of the city’s 39 active stations recorded ‘severe’ AQI levels , several of them at the higher end of the range. Bawana recorded an AQI of 462, Wazirpur 460, and both Mundka and Punjabi Bagh 452.

An AQI

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