Since November 2025, Delhi, India, has been shrouded in a “toxic haze,” with the Air Quality Index (AQI) exceeding 400 for consecutive days. In some areas, it surged above 450, with PM2.5 concentrations 30 times higher than the World Health Organization’s safety standard—equivalent to inhaling 16 to 20 cigarettes daily. Hospitals have seen a surge in respiratory patients, with childhood asthma cases doubling. Elderly individuals and those with chronic illnesses have been forced to remain indoors.
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