Updated On: 20 October, 2025 02:21 PM IST | ronak mastakar
Delhi`s air quality nose dived on Monday, the Diwali afternoon, as pollution levels at 31 out of 38 monitoring stations redlined at `very poor`, and `severe` at three stations. (Pics/PTI)

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According to the SAMEER app by the Central Pollution Control Board (CPCB), Delhi recorded an overall AQI of 334 at noon, compared to 339 at 9 am
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The air quality is expected to deteriorate further into the `severe` category more widely on Tuesday and Wednesday

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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`
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Earlier, the Commission for Air Quality Management (CAQM) invoked Stage II of the Graded Response Action Plan (GRAP) across Delhi-NCR

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Thirty-one monitoring stations reported air quality in the `very poor` category with AQI levels above 300, while three stations, Anand Vihar (402), Wazirpur (423), and Ashok Vihar (414), logged pollution to be in the `severe` category
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