New Delhi: Parts of the Delhi-NCR are engulfed in heavy fog on Saturday (February 20, 2021) while the overall Air Quality Index (AQI) of the city remained in the poor category, according to the System of Air Quality and Weather Forecasting And Research (SAFAR).
Fog affects visibility in the Delhi-NCR, visuals from Singhu border (Delhi-Haryana border). pic.twitter.com/w5aRtR3Cfb
— ANI (@ANI) February 20, 2021
As per SAFAR, surface winds are low and forecasted to improve. A fresh Western disturbance is likely to affect the Delhi region from 21st Feb. A marginal improvement in ventilation and lower end of Very poor AQI was forecasted for February 20, 2021. AQI is likely to improve Very Poor to Poor on February 21 and further improve to Poor on February 22, 2021.
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.
As per the SAFAR, the concentration of PM 10 particles stood at 280 in the ‘poor’ category while PM 2.5 at 131 in the ‘ very poor’ category today. According to the India Meteorological Department (IMD), 13 degree Celsius temperature was recorded in Delhi’s Palam at 5:30 am today.
(With visuals from ANI)