"Concentrations of copper, zinc, manganese, and iron were determined in muscle tissue of coastal fish (Pumpus argentius, Tenulosa ilisha and Rastrelliger kanagurta) and fresh water fish (Hypophthalmichthys molithrix and Cirhinnus mrigela) samples from West Bengal, India, for assessing the potential health risk to human population. The concentrations of Cu, Zn, Mn and Fe in coastal fish muscles were ranged between 0.79-4.0 mg kg-1 dw, 5-29 mg kg-1 dw, 0.50-5.0 mg kg-1 dw and 20-75 mg kg-1 dw, respectively, and in fresh water fish, they were in the ranges of 5.0-28 mg kg-1 dw, 33-51 mg kg-1 dw, 2.0-6.0 mg kg-1 dw and 38- 110 mg kg-1 dw, respectively. The pattern of metals accumulation was in order of Fe > Zn > Cu > Mn. The results showed that the concentrations of metals in studied fish muscles were all lower than recommended guideline values. Estimated daily intakes (DIs) and weekly intakes (WIs) of metals (Cu, Zn, Mn & Fe) from fish consumption were lower than stipulated reference dose (RfD) and provisional tolerable weekly intake (PTWI) for human population. Total health hazard, based on hazard quotients (HQ) for fish eating human population from studied metals was ranged between 0.027- 0.13, which is much lower than safe limit of one (<1) suggesting negligible health risk.
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Last date updated on July, 2014