NEW DELHI: This Diwali surged to dangerous highs in the national capital, with PM2.5 concentrations averaging 488 µg/m3 post the festival of lights.
An analysis compiled by Climate Trends based on the data of the Central Pollution Control Board (CPCB) from 2021-2025 showed that Delhi’s air pollution levels on Diwali surged to dangerous highs, with PM2.5 concentrations averaging 488 µg/m3 post-Diwali.
Over the five-year analysis, data showed a consistent Diwali-related pollution spike with PM2.5 values typically doubling or tripling during the festival of night and persisting through the next day.
