In a major relief for Delhiites who have been battling pollution woes, the air quality in the national capital showed a slight improvement on Saturday, thanks to increased wind speed-favourable for dispersion. The overall air quality index (AQI) was recorderd at 244 which falls in the 'poor category', according to the Central Pollution Control Board (CPCB) data.
Over 31 areas in the national capital recorded 'poor category' while four areas recorded 'moderate' air quality, the data said.
Delhi Pollution: Slight improvement in air quality; task force recommends stricter action in 'hotspots'
The level of PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) was recorded at 119 and the PM10 level was recorded at 238, it said.
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'.
Gurgaon, Ghaziabad, Faridabad, Noida and Greater Noida recorded poor air quality.
According to the Indian Institute of Tropical Meteorology, the air quality has improved due to higher wind speed.
The Particulate Matter (PM) concentration is likely to reduce owing to increased wind speed and air quality is likely to be in poor category, it said.
Humidity in the city is high which is slightly unfavourable and stubble fire will have marginal impact, it said.
According to the Centre-run System of Air Quality and Weather Forecasting (SAFAR), at present, wind speed is moderate and partially good for air quality which may decline anytime by late night, humidity continued to be high owing to mist and temperature is likely to be cool