Meteorological Conditions In Delhi ‘Extremely Unfavourable’ For Pollutant Dispersion Since September, Says Pollution Board
People walk along Rajpath boulevard as the Rashtrapati Bhavan stands in the background in New Delhi, India. (Photographer: Prashanth Vishwanathan/Bloomberg)

Meteorological Conditions In Delhi ‘Extremely Unfavourable’ For Pollutant Dispersion Since September, Says Pollution Board

Bookmark

Meteorological conditions in Delhi have been "extremely unfavourable" for dispersion of pollutants since this September as compared to last year, the Central Pollution Control Board said on Friday.

CPCB Member Secretary Prashant Gargava said the PM10 concentration between Sept. 1 and Oct. 14 this year has been more as compared to the corresponding period last year.

An analysis showed there were seven rainy days with cumulative rainfall of 121 mm, between Sept. 1 and Oct. 14 in 2019. This year, there have been only three rainy days with 21 mm rainfall during the same period, he said.

Also read: Only 4% Pollution In Delhi-NCR Due To Stubble Burning, Says Javadekar; Kejriwal Hits Back

"Meteorological conditions have been extremely unfavourable in September and October this year as compared to the corresponding period last year," Gargava said.

The average ventilation index has been 1,334 metre square per second in September and October this year as compared to 1,850 metre square per second during the corresponding period last year, the official said.

Ventilation index is the speed at which pollutants can get dispersed. A ventilation index lower than 6,000 sqm/second, with average wind speed less than 10 kmph, is unfavourable for dispersal of pollutants.

BQ Install

Bloomberg Quint

Add BloombergQuint App to Home screen.