Fog diminishes visibility to 100 metres in Delhi - Fog has tightened its grip over several parts of North India on Wednesday morning. Dense fog engulfed Delhi as the visibility dropped to 100 meters at Palam Airport.
On Tuesday, the air quality in the national capital plunged to the "very poor" level with real-time readings of PM 2.5, the tiniest and most damaging of all the particulate matters, breaching the 'severe' category in areas across the national capital.
Around 10 PM, in 3 stations of System of Air Quality and Weather Forecasting and Research (SAFAR), PM 2.5 fell in the severe category which affects healthy people and seriously impacts those with existing diseases.
Delhi Pollution Control Committee's (DPCC) reading of Anand Vihar station, had PM 2.5 at 534 micrograms per cubic metre at 9.50 PM while PM 10 was at 853.
Punjabi Bagh and Mandir Marg, localities far away from each other, had PM 2.5 levels at 315 and 271 micrograms per cubic metre, nearly five times above the safe limit respectively. R K Puram's PM 10 was at a staggering 1135, 10 times above what is considered safe.