West Bengal || Bangladesh
Middle Ganga Plain, Bihar ||
From Assam two districts Dhemaji and Karimganj have been surveyed for groundwater arsenic contamination and both are found arsenic contaminated. So far 241 hand tubewells have been analyzed for arsenic from these two districts and 42.3% and 19.1% found above 10 and 50 µg/L respectively.
From these two districts 27 villages have been identified where groundwater is above 50 µg/L
A good portion of Assam is in the
Brahmaputra Plain so we expect its groundwater arsenic contamination like