The overall Air Quality Index of Delhi reached the “very poor” category on Wednesday, said the Centre-run System of Air Quality and Weather Forecasting And Research (SAFAR).
According to The concentrations of PM 2.5 and PM 10 stood at 252 in the ‘poor’ and 131 in the ‘very poor’ category.
The air quality over is likely to remain in the lower end of the ‘Poor’ to ‘Very Poor’ categories on November 2 and November 3, said the Indian Meteorological Department.
The air quality is assumed to be in the lower end of the ‘Very Poor’ category on November 4, 2021. The Outlook for subsequent 5 Days: The air quality is likely to deteriorate on November 5 and November 6 but remain in the Very Poor category, as per IMD.
PM2.5 to be the controlled pollutant, according to IMD.
Environmentalist Manu Singh said to news agency ANI, “Air quality of Delhi has been poor since last week. But today, it deteriorated more and it has gone to very poor standard. This deterioration has happened primarily, due to a dip in mercury levels of Delhi. Secondly, it is also due to calmer winds.”
“Secondly, the dip in temperature makes the wind heavier so that hampers the dispersal of pollution. It is expected that in the next 2-3 days, the AQI will deteriorate further and we’ll have the same kind of very poor air quality,” he added.
“After the festival, it is expected that the airflow would increase slightly leading to some kind of relief but throughout the winter season, due to calmer air and dip in temperature, it’s expected that the air quality will remain very poor to poor,” Manu Singh further added.
The predominant surface wind is likely to be coming from the Southeast directions of Delhi with a wind speed of 10 kmph and mainly clear sky becoming partly cloudy sky towards afternoon/evening on November 2, 2021.
The predominant surface wind is likely to be coming from the Southeast directions of Delhi with a wind speed of 04-08 kmph and mainly clear sky on November 3, 2021.
The predominant surface wind is likely to be coming from the Northeast/Northwest directions of Delhi with a wind speed of 04-08 kmph and mainly clear sky on November 4, 2021.
