North India Statesman
As winter settles across Northern India, millions of residents in industrial corridors and metropolitan regions like Delhi-NCR, Lucknow, and Kanpur face a hazardous air quality index (AQI) spiked with fine particulate matter ($PM_{2.5}$ and $PM_{10}$), heavy metals, and industrial exhaust. Medical scans of long-term urban dwellers often show microscopic carbon …
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