Gaps in official pollution records may have caused Delhi’s reported air-quality figures during Diwali to appear lower than the actual levels, according to an analysis of the data.
The assessment indicates that missing measurements affected the official figures released for the festival period. As a result, the recorded pollution levels did not fully reflect the conditions in Delhi during Diwali.
The findings raise questions about the reliability of the data used to assess pollution during one of the periods when air quality is closely examined. However, the supplied analysis does not provide further details about the extent of the missing data, the specific monitoring locations affected or the precise difference between the published figures and the underlying pollution levels.
The available information does not indicate what action, if any, will be taken in response to the findings. The latest assessment is that official Diwali pollution figures were lower than they should have been because of missing data.
