From Hindustan Times
Center Owned by HT MediaDelhi’s missing Diwali night data released; PM2.5 at over 60 times national standard
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.
AI-generated overview from 3 outlets. It summarises their reporting and adds no reporting of its own.
What each side is saying
One outlet's own words from each side of the spectrum. Quoted, not summarised.
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left · 3 outlets
Missing PM2.5 data for several hours on CPCB website understated city’s pollution levels: experts; 227 PM2.5 observations were missing across 59 stations; govt. will look into it: Mishra
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center · 3 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
Ajay Maken raised concerns about the lack of PM2.5 data at 25 air quality monitoring stations on Diwali night. He noted that pollution levels averaged 38.4 times the World Health Organisation's limit at the remaining stations. Maken emphasized that this inconsistency affects the accuracy of…
RSS excerpt
HT had reported earlier that PM2.5 readings at many of Delhi’s stations went blank as the air worsened on the night of November 8.
