Only 9 of 37 Air Quality Monitors Worked in Delhi on Diwali, Supreme Court Told

Brief by Shorts91 Newsdesk / 11:49am on 03 Nov 2025,Monday India

The Supreme Court was told that only nine of Delhi’s 37 air quality monitoring stations were working on Diwali. The court’s amicus curiae, Aparjita Singh, said this missing data made it hard to track pollution and apply emergency measures. The court asked the Commission for Air Quality Management (CAQM) and the Central Pollution Control Board (CPCB) to file reports. On Diwali, Delhi’s PM2.5 level touched 488 micrograms per cubic metre — nearly 100 times above the WHO limit. The city’s overall AQI stood at 316 on Monday, still in the “very poor” category. (PC: NDTV)

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