Measurement of Lead and Cadmium in Sillago sihama and Terapon Jarbua fish tissues in the southern region of Qeshm Island

This study has been performed to measure Lead and Cadmium levels in Sillago sihama and Terapon Jarbua fish tissues in Qeshm Island. Twenty four samples from each species were randomly selected in October 2015 in the southern area of the island. After samples were biometrically determined; muscle tissues, skin and the liver were separated and chemically digested by wet digestion. To measure the amount of heavy metals in samples, ICP-OES model Liberty RL device was used. According to the results, the least amount of Lead in Sillago sihama and Terapon Jarbuawas was found in muscle tissues (57 mg/kg and 64 mg/kg respectively) and the highest amount was seen in the liver (1280 mg/kg and 1763 mg/kg) and the least amount of Cadmium was observed in muscle tissues (Sillago sihama and Terapon Jarbua, there is no significant difference at 95% confidence level between the metals in all three tissues. Comparing the tissues of two fish species on the absorption of Lead and Cadmium depicts no significant difference in the confidence level of 95%. To evaluate the safety of studied fish tissues for consumption, the amount of metals in the tissues were compared with WHO (Pb: 500mg/kg, Cd: 200mg/kg) standards, which indicated no significant differences. Based on the mentioned results and calculation of the acceptable daily intake, the consumption of these fish species, regarding health aspects, is confirmed.