environment 25% of PM 2.5 load in Kolkata from outside, says

Titled ‘Sources of poor air quality and long-term variability over Kolkata’, it has been published in an Elsevier publication

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Bangladesh , Odisha , Orissa , India , Nepal , Kolkata , West Bengal , Eastern Ghats , India General , Delhi , Uttar Pradesh , Calcutta , Bihar , Abhijit Chatterjee , Anumita Roy Choudhury , Centre For Science , Bose Institute , Elsevier , Asian Atmospheric , Andhra Pradesh ,