Study of white shrimp ( Metapenaeus Affinis) from Bushehr coastal with the perspective of contamination by heavy metals Fe, Zn, Cu, Mn, and Ni and risk estimation for consumer
Marine ecosystems are contaminated with heavy metals through industrial discharge, agricultural and urban runoff, and municipal waste. Aquatic organisms in such waters, so, are presumably to be contaminated with heavy metals and unsafe for consumption. This research was done in the coastal regions of Bushehr in 2016 to determine the heavy metal (Fe, Zn, Cu, Mn, and Ni) concentrations in white shrimp (Metapenaeus Affinis) and their consumption risk. Shrimp samples were collected from several stations of Bushehr coastal regions randomly using the boat and fishing net. the Preparation and analysis of the shrimp samples were done based on the standard methodology and the concentrations of the heavy metals were determined using the flame atomic absorption spectroscopy. Estimation the daily intake and potential risk of heavy metals resulted from shrimp consumption were performed according to the program of the EPA. The concentrations of Fe, Zn, Cu, Mn, and Ni in shrimp muscle were 130.02, 65.61, 35.81, 10.2 and 10.66 mg/kg dry weight respectively. Based on the results, the concentration of Fe, Zn, and Cu were lower than world standards. The Ni concentration was significantly higher than the FDA but lower than other standards. The estimated daily and weekly intakes were observed lower than the reference dose presented by EPA. In the present situation, this shrimp species were found to be safe for consumption and continuous consumption (70 years) causes not non-carcinogenic effect.
Journal of Animan Researches, Volume:31 Issue:4, 2019
395 - 405
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