Nine districts in West Bengal, India, and 42 districts in Bangladesh have arsenic levels in groundwater above the World Health Organization maximum permissible limit of 50
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/groundwater-arsenic-contamination-bangladesh-and-west-bengal-india
[2] http://admin.indiaenvironmentportal.org.in/category/author/uttam-k-chowdhury
[3] http://admin.indiaenvironmentportal.org.in/category/author/bhajan-k-biswas
[4] http://admin.indiaenvironmentportal.org.in/category/author/tarit-roy-chowdhury-et-al
[5] http://admin.indiaenvironmentportal.org.in/category/journal/environmental-health-perspectives
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arsenic
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drinking-water
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-quality
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangladesh
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal