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Lead (Pb) is a toxic metal compound that can contaminate fish and pose health risks to humans. The purpose of this study was to analyze the level of Pb from fresh and smoked mackerel tuna (Euthynnus affinis) sold in Tuban, Indonesia. Mackerel samples were obtained from fish sellers along the highway of Karangsari village, Tuban district, Tuban, Indonesia. The determination of Pb content in mackerel body was carried out through the Atomic Absorption Spectrophotometry (AAS) characterization following with the guidelines of SNI (Indonesian National Standard) year 2011. The research data showed that the range of Pb levels on both fresh fish (0.33 - 14.41 mg/kg) and smoked fish (1.30 - 22.20 mg/kg) exceeds the threshold set by SNI No. 7387 the year 2009. The results of the Mann-Whitney test indicated that Pb level in smoked fish (Mdn = 19.05) was not significantly greater than fresh fish (Mdn = 12.13), U = 50.00, p = 0.219. Pb levels of mackerel tuna that were above the permissible levels indicate a health risk if the fish is consumed by humans. Monitoring and decision making by the Indonesian government needs to be conducted to overcome Pb contamination that occurs in the sea of Tuban.

Lead (Pb) Level of Fresh and Smoked Mackerel Tuna (Euthynnus affinis) in Tuban, Indonesia