IQAir vs CPCB

  • Understanding India

    Understanding India's AQI Cap at 500: Delhi's Air Quality Measurement Explained

    Nov 20, 2025 05:21 pm CST

    This comprehensive analysis explores why India's air quality index (AQI) is capped at 500 despite Delhi experiencing more severe pollution levels. The article examines the discrepancies between government and independent measurements, explains AQI calculation methodology, and discusses the health implications of severe air pollution, providing essential context for understanding Delhi's ongoing air quality crisis.