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Delhi Overtakes Lahore As World's Most Polluted City As AQI Hits Severe Level

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Delhi Overtakes Lahore As World's Most Polluted City As AQI Hits Severe Level

Air quality index (AQI) in Delhi was "hazardous" at 334, making it the most polluted global major city, according to Swiss group IQAir, which measures air quality levels based on the concentration of toxins