Delhi’s Diwali pollution started before the fireworks
Delhis air was already severely polluted before Diwali, with average PM2.5 levels in the week before the festival reaching 236 micrograms per cubic metre, nearly double the 2025…
Attributed summary
Delhis air was already severely polluted before Diwali, with average PM2.5 levels in the week before the festival reaching 236 micrograms per cubic metre, nearly double the 2025 level, according to CSE. The findings suggest firecrackers and stubble burning worsen an existing crisis rather than create it, with vehicles, industry, construction, waste burning and pollution from neighbouring NCR districts keeping baseline pollution high.
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