Just ahead of Diwali 2026, Delhi's air has gotten much worse, with PM2.5 levels soaring to 236 micrograms per cubic meter, almost double last year's numbers.
The Centre for Science and Environment (CSE) points out this is the highest in recent years, making the city's air seriously unhealthy.
Delhi pollution persists despite cleaner fuels
This spike comes from more pollution across the board: cars, factories, construction dust, and waste burning all play a part.
Even with steps like cleaner fuels and more electric busses from the Commission for Air Quality Management (CAQM), pollution is still stubbornly high.
Experts say real change will need everyone working together, especially as weather can make or break these efforts each year.