Delhi’s Air Quality on Sunday improved slightly as the Air Quality Index(AQI) upgraded to ‘very poor’ category from Saturday morning’s severe. On Sunday morning, the AQI was reported at 386, according to the System of Air Quality and Weather Forecasting And Research (SAFAR).
The pollution level in the National Capital Region (NCR), especially Noida and Gurugram, remained a grave concern. Noida reported AQI in the ‘hazardous’ category at 536, while the air quality in Gurugram was at the upper end of ‘severe’ category at 423. As per SAFAR’s bulletin, the AQI is likely to improve in two day “as winds at transport level (925 mb) are slowing down resulting in lesser intrusion of farm fires related pollutants into Delhi.”
“However, as local winds are becoming calm and minimum temperature is decreasing further, preventing efficient dispersion of pollutants leading to improvement of air quality to the upper end of very poor category or lower end of the severe category,” it added.
The India Meteorological Department (IMD) predicted: “mainly clear sky and moderate fog in the morning” for Sunday and Monday.
“The contribution of biomass burning in PM2.5 concentration is likely to be approximately 10 per cent on November 13-14 as winds are favourable for transportation of pollutants,” it added.