Thick fog engulfed Delhi on January 15. Minimum temperature will hover around 8 degree Celsius this week, predicts India Meteorological Department. Major pollutants PM 2.5 stood at 205 and PM 10 stood at 185, in 'Poor and 'Moderate' categories respectively in Delhi's Lodhi Road area according to the Air Quality Index (AQI) data. Republic Day parade practice continued at Rajpath despite harsh weather. Commuters are facing problem due to low visibility.