Delhi air pollution: AQI improves from ‘severe’ to lower end of ‘very poor’

At 6 americium connected Sunday, determination were 10 stations successful the ‘severe’ category, but by Sunday noon, nary reported ‘severe’ aerial quality. Anand Vihar, which was the astir polluted with 416 AQI arsenic of 6 am, saw an betterment successful aerial prime with 383 AQI astatine 1 pm. Lodhi Road reported the lowest contamination levels among the 39 aerial prime monitoring stations astatine 302 AQI, arsenic of 6 am, inactive successful the ‘very poor’ category. This further improved with 272 AQI successful the ‘poor’ class by Sunday noon.

According to the India Meteorological Department (IMD), smog oregon shallow fog conditions prevailed connected Sunday morning. Visibility astatine Safdarjung airdrome improved from 800 m astatine 5.30 americium to 2,000 m astatine 1 pm.

The aerial prime improved arsenic the winds picked up, successful the greeting hours connected Sunday. The mean upwind velocity remained astir 3 kmph, but this accrued to 6 to 10 kmph by noon, according to information from the Delhi Pollution Control Committee.

A favourable upwind velocity of much than 10 kmph was reported successful a fewer stations. At Alipur, for instance, the upwind velocity reached supra 10kmph arsenic of 10 am, Sunday. On Saturday, the upwind velocity was chiefly 4 to 8 kmph during time clip and calm upwind during the nighttime time, arsenic per the IMD upwind bulletin.

The Centre’s Decision Support System showed that stubble burning contributed 19.58 per cent arsenic of Saturday, portion the transport assemblage was the main home sector, astatine 15.73 per cent.

According to the Indian Institute of Tropical Meteorology (IITM) forecast, the aerial prime volition beryllium successful the ‘very poor’ class until Wednesday (November 27). In its outlook for the consequent six days, it has forecast aerial prime to fluctuate betwixt ‘very poor’ and ‘severe’ conditions.

The Met bureau has forecast mean fog conditions from Moderate fog from Monday to Wednesday (November 25 to 27), aft which dense fog information is forecast connected Thursday (November 28).

The IMD said the mercury levels volition besides gradually dip successful the coming days, with the minimum touching 10 degrees Celsius and the maximum 25 degrees Celsius. Sunday’s minimum somesthesia recorded was a notch supra mean astatine 12 degrees Celsius. The maximum somesthesia connected Saturday was supra mean by 3 notches astatine 29.4 degrees Celsius.