Delhi’s air quality slipped to the ‘poor’ category on Saturday. <br /> <br />With an increase in the impact of stubble burning on air quality in the national capital, PM2.5 levels have also risen. <br /> <br />The Central Pollution Control Board’s AQI bulletin released at 4 pm on Saturday indicated that Delhi’s AQI stood at 284, with PM10 and PM2.5 as the main pollutants. <br /> <br />The figure is an average of AQI over the past 24 hours from the CPCB’s 36 monitoring stations. <br /> <br />According to the National Air Quality Index, AQI between 201 and 300 is categorised as ‘poor.’
