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
The air quality is expected to deteriorate further into the 'severe' category more widely on Tuesday and Wednesday
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'
Earlier, the Commission for Air Quality Management (CAQM) invoked Stage II of the Graded Response Action Plan (GRAP) across Delhi-NCR
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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