GRAP 3 Curbs Invoked In Delhi Amid 'Severe' Air Quality

The Centre's panel on Delhi-NCR's air quality on Wednesday invoked curbs under stage 3 of the Graded Response Action Plan (GRAP) amid a sharp rise in pollution due to unfavourable meteorological conditions, according to an official order.

The air quality in Delhi deteriorated sharply amid calm winds, smoggy situation and low mixing height with the 24-average AQI rising to 365 at 4 pm, prompting the Commission for Air Quality Management (CAQM) to implement curbs under stage 3 of GRAP.

GRAP Stage 3 entails a ban on non-essential construction work.

Classes up to grade 5 are required to shift to hybrid mode under Stage 3. Parents and students have the option to choose online education wherever available.

Under Stage 3, the use of BS-III petrol and BS-IV diesel cars (4-wheelers) is restricted in Delhi and nearby NCR districts. Persons with disabilities are exempt. Stage 3 also bans non-essential diesel-operated medium goods vehicles with BS-IV or older standards in Delhi.

During winters, the Delhi-NCR region enforces restrictions under GRAP, which categorizes air quality into four stages - Stage I (Poor, AQI 201-300), Stage II (Very Poor, AQI 301-400), Stage III (Severe, AQI 401-450), and Stage IV (Severe Plus, AQI above 450).

Unfavourable meteorological conditions, combined with vehicle emissions, paddy-straw burning, firecrackers, and other local pollution sources, lead to hazardous air quality levels in Delhi-NCR during winters.

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