Abstract
Arsenic contamination in ground water is reported in valleys of Manipur especially in Kakching area. Kakching is the second biggest town in Manipur with a population of 28,746. Ground water samples of the area are well contaminated with arsenic. Highest level of 111 ppb is found in Paji Leikai. The area was a peat land in the past and patches bog iron deposits are still observed. Ore Microscopy, SEM and XRD analyses of bog iron samples confirmed the presence of arsenopyrite. We concluded that the main source of the Arsenic contamination in ground water of the study area is due to leaching out of arsenic from the Bog Iron deposits. . Keyword: Kakching, Ground water, Arsenic, Bog Iron.
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