The air quality level in Delhi has improved in the past few weeks. According to the Central Pollution Control Board (CPCB), the air quality in the National Capital yesterday was categorized in the ‘ moderate’ category, with the air quality index recorded at 138
points.
Air quality between zero and 50 is considered good; between 51 and 100 is considered satisfactory; between 101 and 200 is considered moderate; and between 201 and 300 is considered poor.