From The Tribune
Center Owned by The Tribune Trust376 vs 1,500: CPCB, private agencies differ sharply on AQI readings
What's behind this
After Diwali, Delhi’s air quality readings showed a stark contrast between government and private monitors. The Central Pollution Control Board recorded an overall AQI of 376 on November 9, whereas private platforms and mobile apps reported AQI values near 1,500. Experts noted that the CPCB website omitted PM2.5 data for several hours, with 227 observations missing across 59 stations, which likely understated the city’s pollution levels. The Delhi Pollution Control Committee later released the missing Diwali‑night data, showing PM2.5 concentrations of 3,744, more than 60 times the national standard.
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center · 2 outlets
A wide gap in air quality readings reported by government and private monitoring agencies has emerged in Delhi after Diwali, with the Central Pollution Control Board (CPCB) recording an overall air quality index (AQI) of 376 on November 9, while some private platforms and mobile applications showed…
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right · 1 outlet
Delhi recorded its most polluted Diwali in five years, with the average AQI touching 376, but questions have emerged over the reliability of official data after 36 of its 59 monitoring stations stopped reporting readings at 1 am during peak pollution hours. Private platforms reported significantly…
RSS excerpt
A wide gap in air quality readings reported by government and private monitoring agencies has emerged in Delhi after Diwali, with the Central Pollution Control Board (CPCB) recording an overall air quality index (AQI) of 376 on November 9, while some private platforms and mobile applications showed…
