With air high quality worsening once more, stricter air pollution curbs beneath GRAP 3 have been reimposed in Delhi and surrounding areas, the Commission for Air Quality Management (CQAM), the Centre’s air pollution watchdog, stated on Friday.
The Graded Response Action Plan (GRAP) is a set of emergency measures carried out in Delhi-NCR to sort out air air pollution based mostly on the severity of the Air Quality Index (AQI).
The Supreme Court had earlier directed that GRAP’s Stage III measures should be carried out if the AQI exceeds 350 and Stage IV measures reintroduced if it surpasses 400. Stage III and Stage IV have been activated on December 16 after AQI ranges hit 401.
The GRAP for Delhi-NCR is split into 4 levels of air high quality — Stage 1 for “poor” Air Quality Index (AQI) ranging between 201 and 300, Stage 2 for “very poor” AQI of 301-400, Stage 3 for “extreme” AQI of 401-450 and Stage 4 for “extreme plus” AQI (greater than 450).