Delhi’s air quality is categorized into four stages: Stage I is “poor” (AQI 201-300); Stage II is “very poor” (AQI 301-400); Stage III is “severe” (AQI 401-450); and Stage IV is “severe plus” (AQI >450). The new GRAP - 4 guidelines and restrictions are effective from Monday. Delhi's air quality deteriorated further during the day, breaching the 400 mark, forcing the Commission for Air Quality Management (CAQM), the anti-pollution panel, to impose GRAP 4 restrictions . In response to worsening air quality in Delhi-NCR, the Commission for Air Quality Management (CAQM) has decided to activate Stage IV of the Graded Response Action Plan ( GRAP ) from today. Delhi-NCR has implemented GRAP -IV restrictions due to severe air quality, crossing into the 'severe' zone. Schools will adopt hybrid learning, construction and demolition activities are banned ...
