Delhi’s air quality was in the moderate category on Friday morning. Data from the Central Pollution Control Board showed that the hourly air quality index (AQI) at 7am stood at 126. On Thursday, the average 24-hour AQI had been 150.
An AQI between zero 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.
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