<span style="color: #222222;">The air quality level in Delhi was recorded in the "severe" category this morning. According to the Central Pollution Control Board, the Air Quality Index stood at 410 at 6 AM.<br />''<br />''An AQI between 0 to 50 is considered 'good', 51 to 100 'satisfactory', 101 to 200 'moderate', 201 to 300 is considered 'poor', 301 to 400 'very poor' and 401 to 500 is considered in 'severe' category.</span><br />