GRAP-4 curbs reimposed in Delhi-NCR as air quality turns 'severe'
Delhi's air quality has worsened to the 'severe' category. Authorities have now enforced Stage 4 restrictions under the Graded Response Action Plan. This means stricter measures are in place across Delhi-NCR. The decision was made proactively to p...

"The AQI of Delhi, which was recorded as 400 on Saturday at 4 PM, exhibited a sharp increasing trend and has been recorded at 428 at 8 PM owing to a western disturbance, highly unfavourable weather and meteorological conditions, and lack of dispersal of pollutants," said a senior official of the Commission for Air Quality Management (CAQM).
"Keeping in view the prevailing trend of air quality and relevant factors and in an effort to prevent further deterioration of air quality in the region, the CAQM Sub-Committee on GRAP unanimously decides to invoke all actions as envisaged under Stage-IV of extant GRAP - 'Severe+' Air Quality (DELHI AQI > 450), with immediate effect, in the entire NCR, as a proactive measure," the official said.
This comes a day after the CAQM enforced GRAP 3 restrictions in Delhi-NCR on Friday.
GRAP categorises air quality into four stages -- 'poor' (AQI 201-300), 'very poor' (AQI 301-400), 'severe' (AQI 401-450) and 'severe plus' (AQI above 450).
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