Delhi’s air was already toxic before Deepavali. Here’s what a new study found

The report suggests that heavy levels of pollution were already present before Deepavali, suggesting that Delhi’s air quality crisis is caused by persistent local sources of emissions in addition to seasonal factors. While stubble burning contributed to pollution levels, the analysis found that emissions from traffic accounted for the largest share of locally generated pollution.

Published – 12 Nov 2026 14:21 IST