An AQI between 0-50 is marked good, 51-100 is satisfactory, 101- 200 is moderate, 201- 300 is poor, 301-400 is very poor and 401-500 is considered severe.
Biting cold and dense fog prevail across north-Indian states with very low visibility being reported in several parts.
In light of this fog, 14 trains are running late in the Northern Railway region, the Indian Railways informed.
The India Meteorological Department (IMD) reported dense and very dense fog from north Rajasthan, Punjab, Haryana, Chandigarh, Delhi, Uttar Pradesh, Bihar, Sub-Himalayan West Bengal, Assam and Tripura at 5:30 am in the morning.
Visibility was very poor in the morning with Ganganagar, Patiala, Ambala, Bareilly, Bahraich, Lucknow, Gorakhpur and Baghdogra reporting 25 meters of visibility.
Amritsar, Chandigarh, Agra, Sultanpur, Prayagraj, Varanasi, Patna, Bhagalpur and Tezpur reported 50 meters of visibility while Chandigarh, Hissar, Delhi, Gaya, Dibrugarh and Kailashahar reported 200 meters.
The overall air quality index (AQI) also worsened from yesterday at 431, (severe), the System of Air Quality and Weather Forecasting and Research said.
(Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)
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