Arsenic in the shelf and slope sediments along the east coast of India

S.P. Fondekar, T. Joseph, C.V.G. Reddy


Arsenic contents in the sediments of the east coast of India (between Lat. 11 degrees 00'N and 17 degrees 29'N) were determined. Marked variations were found in the concentration of arsenic with location and texture of sediments. In general, the inner shelf and slope sediments, having a high percentage of clay contained a high concentration of arsenic. However, around Visakhapatnam, higher concentrations were found to be associated with sediments having a high percentage of sand. The concentrations over the entire area ranged between 0.2 and 8.7 ppm. The factors determining the distribution of arsenic in the sediments of this region are discussed


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