Delhiites woke up to another smoggy morning with a thick layer of white blanket (smog) engulfing the city. The air quality index (AQI) at 6 am was recorded at 432, falling under the "severe” category", according to the Central Pollution Control Board (CPCB). Low visibility due to heavy smog is likely to impact flights to and from various cities around Delhi. At 5:30 am, Amritsar and Pathankot airports in Punjab reported zero visibility. At 7 in the morning, visibility at Uttar Pradesh's Gorakhpur airport dropped to zero.