Delhi weather: Temp dips further; cold days, fog to grip city for next 6 days | Check forecast here
due to dense fog in the national capital, at least 26 trains were delayed. According to the IMD, a 'very dense' fog is declared when visibility is between 0 and 50 metres, while it is 'dense' when the visibility is between 51 and 200 metres.
Fog is considered 'moderate' when the visibility is between 201 and 500 metres 'moderate', and 'shallow' between 501 and 1,000 metres. The 24-hour average Air Quality Index (AQI) recorded at 7 am on Wednesday is 332, which falls in the "very poor" category.
Areas like Anand Vihar recorded AQI at 339, 310 at Ashok Vihar, 386 at Dwarka Sector 8, 348 at Jahangirpuri, 345 at Rohini and 352 at Wazirpur, as per CPCB data at 7 am. An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe".
Speaking of adjoining areas, all schools in Noida and Greater Noida will remain closed for students up to Class 8 till January 6, amid severe cold weather conditions in the district. The order is largely directed at some private schools where classes are still running, an official said, adding all government schools are observing winter break till January 14.
Apart from this, schools for students of Class 1 to Class 8 will also remain shut in the Lucknow district of Uttar Pradesh till January 6. (With inputs from agencies)Milestone Alert!
Livemint tops charts as the fastest growing news website in the world
