Category : Air Pollution | Location : Delhi | Posted on 2026-01-22 23:06:16
Millions of Delhi residents cling to a comforting belief: that shutting the door is enough to keep the city’s poisonous air at bay. But a week-long field experiment by Hindustan Times has punctured that illusion. It showed that the boundary between outdoor and indoor air is porous, fragile, and often meaningless. It found that polluted outdoor air is seeping indoors with limited attenuation, entering through ventilation systems, open doors and windows, or simply through the everyday leakage of buildings not designed to withstand such extreme environmental stress.
