Delhi's air quality in 'severe' category due to calm winds, spike in farm fires

The Air Quality Index (AQI) dropped to the severe category in Delhi-NCR on Friday morning. According to the data shared by the Central Pollution Control Board (CPCB), the AQI value was 380 at 7 am. In the Patparganj area, the AQI value was 404, 408 in Anand Vihar, 447 in Bawana, and 411 in Wazirpur. 

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