CPCB Caps PM2.5 Monitoring Upper Limit at 1000 µg/m³, Excluding Extreme Diwali Pollution Spikes from AQI Calculations
The Central Pollution Control Board (CPCB) issued a clarification on Tuesday, 10 November 2026, stating that hourly PM2.5 readings exceeding 1,000 micrograms per cubic metre (µg/m³) are automatically excluded from calculating the National Air Quality Index (NAQI). The official response follows an investigative report revealing that over two-thirds of Delhi’s 59 Continuous Ambient Air Quality … Read more