severe air pollution

  • Delhi Implements GRAP Stage 4 Measures: Hybrid Classes and 50% WFH as Air Quality Reaches

    Delhi Implements GRAP Stage 4 Measures: Hybrid Classes and 50% WFH as Air Quality Reaches 'Severe Plus' Levels

    Dec 13, 2025 11:59 pm CST

    Delhi has activated Stage 4 of the Graded Response Action Plan (GRAP) as air quality deteriorates to 'Severe Plus' levels, with AQI reaching 441. Schools must adopt hybrid learning models through Class 11, while government and private offices have been directed to implement 50% work-from-home policies. The Commission for Air Quality Management attributes the crisis primarily to meteorological conditions rather than local emissions.

  • 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.

  • Delhi

    Delhi's Air Quality Plunges to 'Very Poor' Levels During Diwali Celebrations with AQI at 345

    Oct 20, 2025 11:52 pm CST

    Delhi experienced a significant deterioration in air quality during Diwali, with 34 of 38 monitoring stations recording 'very poor' to 'severe' pollution levels. The city's average AQI reached 345, with four stations already in the 'severe' category. Experts warn conditions may worsen further in the coming days despite implementation of pollution control measures.