<p>The national capital's air quality was recorded in the 'moderate' category on Saturday morning, and is likely to turn 'poor' on Sunday due to lowering temperatures and slow wind speed, a government forecasting agency said. </p>.<p>Delhi recorded an air quality index (AQI) of 182 at 10:30 am, which falls in the moderate category. The 24-hour average AQI was 180 on Friday. </p>.<p>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'. </p>.<p>"The air quality is likely to deteriorate to the lower end of poor quality on Sunday," the System of Air Quality and Weather Forecasting and Research (SAFAR) said. </p>.<p>It said an increase in farm fires was observed on Friday around Punjab, Haryana and neighbouring border regions and it is likely to impact Delhi in the coming days.</p>.<p>Also, there is a marked dip in minimum temperatures recorded in Delhi.</p>.<p>On Friday, it settled at 20.6 degrees Celsius, which was two notches below normal and is likely to drop to 19 degrees Celsius by Wednesday.</p>.<p>Low temperatures and stagnant winds help in accumulation of pollutants near the ground, affecting air quality.</p>
<p>The national capital's air quality was recorded in the 'moderate' category on Saturday morning, and is likely to turn 'poor' on Sunday due to lowering temperatures and slow wind speed, a government forecasting agency said. </p>.<p>Delhi recorded an air quality index (AQI) of 182 at 10:30 am, which falls in the moderate category. The 24-hour average AQI was 180 on Friday. </p>.<p>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'. </p>.<p>"The air quality is likely to deteriorate to the lower end of poor quality on Sunday," the System of Air Quality and Weather Forecasting and Research (SAFAR) said. </p>.<p>It said an increase in farm fires was observed on Friday around Punjab, Haryana and neighbouring border regions and it is likely to impact Delhi in the coming days.</p>.<p>Also, there is a marked dip in minimum temperatures recorded in Delhi.</p>.<p>On Friday, it settled at 20.6 degrees Celsius, which was two notches below normal and is likely to drop to 19 degrees Celsius by Wednesday.</p>.<p>Low temperatures and stagnant winds help in accumulation of pollutants near the ground, affecting air quality.</p>