New Delhi, January 1: The air quality in the national capital has worsened over the last few days as the temperature dipped drastically. The air quality continues to remain toxic and in the severe category on the first day of 2020.  According to the Delhi Pollution Control Committee (DPCC) data, Air Quality Index (AQI) was at 412 in 'severe' category in Anand Vihar, at 391 in 'very poor' category in RK Puram, and at 439 in 'severe' category in Rohini. An advisory issued earlier had asked people to avoid outdoor activities, including early morning walks.

An increase in the humidity levels and slow winds together have pushed Delhi’s air quality into the concerning zone over the last few days. The temperature in Delhi touched a low of 2.5-degree celsius on Monday. The mercury, however, has marginally increased and has recorded a temperature of 6-degree Celsius at around 9 am on Wednesday. Delhi Air Pollution: Air Quality Remains Toxic as Thick Fog Envelops, Hovers Between 'Severe' And 'Very Poor' Category in Several Areas.

Check ANI tweet:

A thick layer of fog enveloped the skies of Northern India, thus impeding the visibility. Several flights and trains are being delayed and cancelled due to it.

An AQI between 0-50 is considered "good", 51-100 "satisfactory", 101-200 "moderate", 201-300 "poor", 301-400 "very poor" and 401-500 "severe". An AQI above 500 falls in the "severe-plus" category.

(The above story first appeared on LatestLY on Jan 01, 2020 08:58 AM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).