Air pollution in the national capital was recorded in the "severe" category on Wednesday (November 12) morning for the second day in a row.

The Air Quality Index (AQI) reading at 9 am stood at 414, according to the Central Pollution Control Board (CPCB).

AQI plunges to severe

The city witnessed the worst air quality this season on Tuesday, with the AQI plunging into the "severe" category at 423.

The Central government invoked stricter anti-pollution measures under Stage III of the Graded Response Action Plan (GRAP) in the wake of the deteriorating air quality.

Also read: Centre invokes stage III GRAP as Delhi-NCR’s AQI hits ‘severe’

According to the CPCB classification, an AQI between 0 and 50 is considered "good", 51 to 100 "satisfactory", 101 to 200 "moderate", 201 to 300 "poor

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