New Delhi, Nov. 18 -- As a thick blanket of smog continued to engulf Delhi, the Commission for Air Quality Management (CAQM) sub-committee has decided to implement Stage IV of the Graded Response Action Plan (GRAP) for Delhi-National Capital Region, that will come into effect from Monday at 8 am, owing to 'severe' air quality conditions which include complete halting of construction and demolition activities that generate dust and a ban on truck entry.

Additionally, the government can choose to impose Odd-Even restrictions. The Commission issued the order as Delhi's Air Quality Index (AQI) worsened, reaching 457 at 8 pm. Due to unfavourable weather conditions and dense fog, visibility reduced to less than 50 metres in some parts of the N...