areas of Bangladesh in terms of access to safe drinking water. Shallow groundwater of this
area is highly arsenic contaminated (mostly> 500 μg/L) and deep groundwater is saline (EC
ranges 1 to 8 mS/cm). Local communities rely on rainwater for drinking and cooking
purposes during the monsoon and rest of the year they use surface water from pond which
are mostly polluted. In areas where surface water is not available people are compelled to …