Air quality turned “severe” on Wednesday as the value of prominent pollutant Particulate Matter (PM)10 was recorded at 781 in Anand Vihar area on the air quality index of US embassy.
The average concentration of PM 10 on SAFAR meter was recorded at 388 Micro cubic per gram whereas PM2.5 was recorded at 188.
System of Air Quality and Weather Forecasting and Research (SAFAR), a unit of Ministry of Earth Sciences (MOES) asked people to avoid outdoor physical activities.
In air quality weather forecast, SAFAR said that air quality may improve slightly after two days, however for Wednesday, air quality marked under very poor category.
Citing, low wind speed and fog, SAFAR mentioned that moisture in air holding capacity.
Moreover, relative humidity was also recorded high and unfavorable for the dispersion of pollutants.
"Wind speed was measured at 3.1 Kilometer per hour, hence only partially favourable for dispersion," SAFAR mentioned.
According to Central Pollution Control Board (CPCB), 20 places in Delhi recorded worst in terms of air quality including - Punjabi Bagh, R K Puram.