The national capital New Delhi today recorded worst air quality of the season as the Air Quailty Index stood at 618, which falls in the `Hazardous’ category, ahead of Diwali. The qir quality around Mandir Marg was 707, Major DhyanChand National Statium was at 676 and Jawaharlal Nehru statidum at 682.
An AQI between 0 and 50 is considered “good”, 51 and 100 “satisfactory”, 101 and 200 “moderate”, 201 and 300 “poor”, 301 and 400 “very poor”, and 401 and 500 “severe”. As the onset of winter has brought in thick smog, Delhi has woken up to a thick blanket of smog with the air remaining toxic.
An official with the Centre-run System of Air Quality Forecasting and Research (SAFAR) said despite moderate wind speed, the pollution in Delhi rose due to stubble burning from the neighbouring states.
“As expected there is a significant intrusion of bio-mass generated pollution in Delhi which is increasing pollution levels and made it very poor in spite of moderate surface wind speed,” he said. “The contribution of stubble burning to pollution in the national capital is expected to be 24 per cent on Monday,” another official said.
On Sunday, the overall Air Quality Index (AQI) of Delhi was recorded at 342, which falls in the “very poor” category, according to data of SAFAR. Officials had said that the haze will continue to persist during the early mornings and late evenings for the next few days.
Environment Pollution (Prevention & Control) Authority had issued a notification predicting that air quality between November 1 and 10 will rise to ‘severe’ category. Experts believe this change has occurred because of the western disturbance that hit the Himalayan region in October, resulting in a dip in temperature and rise in the percentage of moisture in the air.