AQI 440: Air crisis relapse bathes Delhi in toxic haze

Delhi’s air became dangerously polluted with the Air Quality Index (AQI) rising to 440, the worst for a January day in two years. Calm winds and increasing emissions caused harmful particles to build up in the atmosphere, creating a thick haze across the city. Experts said this was unusual for the second half of January and pointed to issues in controlling pollution sources. Authorities imposed strict pollution control measures, but the smog remained severe and raised concerns about public health.

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