Pengamatan awal kadar merkuri (Hg) dalam ikan dan kerang di Teluk Kao, Pulau Halmahera

Edward Kewe


Fish and shelfishare some of the food sources that contain high protein for people in coastal areas. Coastal communities who consume seafood such as fish and shelfish that have been contaminated by mercury heavy metals (Hg) have high risk of exposure to Hg heavy metal. This study aims to determine the concentration of Hg  in some species of fish and mussels in Kao Bay  in relation to the health of seafood. Fish and mussels samples were purchased from fishermen in Kao Bay  in November 2015. The Hg concentration was measured by using Atomic Absorption Spectrophotometer (AAS).The results showed that the highest concentration of Hg found in gurara fish (Nemipterus japonicus) meat  that is 0.98 ppm, followed by suo fish  (Sphyraena jello)  0.89 ppm,  tatameri fish (Gazza minuta)  0.38 ppm, gaca fish (Lutjanus argentimaculatus) 0.31 ppm, totodi fish (Synodus foetens)  0.24 ppm,  bubara fish (Caranx sp) 0, 19 ppm, ngafi fish (Stolephorus indicus) 0.19 ppm and biji nangka fish (Upeneus vittatus) 0.15 ppm. In the shelfish meat, the highest concentration of Hg is found in the blood mussels (Anadara granosa), that is 0.42 ppm, and then followed by papaco  (Telescopium telescopium)  0.05 ppm. The concentration of Hg in all samples of fish and shelfish wase still below from the threshold value be allowed levels in seafood for the fish and shellfish of 0.5 ppm and 1,0 ppm.




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