One-fourth of Delhi air 'severely' polluted

Nine of the 36 pollution monitoring station in Delhi showed 'severe' air quality index on Friday, according to the Central Pollution Control Board's data. According to the pollution monitoring agency, AQI in North Delhi's Alipur area was 447, which falls in the 'severe' category, followed by Shadipur, Wazirpur, Jahagirpuri, Mundka, Patparganj, Anand Vihar, Bawana, and Vivek Vihar.

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