Nickel, Copper and Iron concentrations in sediments and Shrimp Macrobrachium nipponense, in Alagol international wetland

Metal pollutants enter to the aquatic environment and organisms through various natural and anthropogenic processes. Nickel (Ni), Copper (Cu) and Iron (Fe) are of the important contamination in the aquatic environment due to its high dispersal and bioconcentration. Therefore, this study investigates the concentration of Ni, Cu and Fe in the sediments and Macrobrachium nipponense. Sediment and shrimp samples were collected from Alagol international wetland and prepared according to acid digestion method. Nickel, Cu and Fe concentrations were determined using atomic absorption spectrophotometry and their associated risk in sediment and shrimp were assessed according to existing index. The concentration of Ni and Fe in M. nipponense exceeded from FAO guideline but target hazard quotient didn’t show any risk for consumers. Nickel, Cu and Fe levels in sediments were lower than some sediment quality guidelines. Sediment risk indices showed low level of contamination. In general, our study showed that Ni, Cu and Fe were in safe levels and their contaminations were lower than dangerous levels.