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Kolkata air pollution News

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New research shows that air pollution in Kolkata becomes highly toxic when PM2.5 levels cross 70 µg/m³, urging stronger pollution control steps.  
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In the study based on research in ten major Indian cities, it has been revealed that 7.3 percent of the total deaths in Kolkata, which comes to 4,700 a year, were attributable to short-term PM 2.5 emissions.






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