Introduction: Mining activities in coastal and marine areas have the potential to release heavy metals such as lead (Pb), cadmium (Cd), mercury (Hg), and nickel (Ni) into the environment through liquid waste, sediment, and mining dust. These metals are toxic, persistent, and bioaccumulative, so they can accumulate in aquatic organisms, including fish, and pose a health risk to humans who consume them. This study aims to analyze the content of Pb, Cd, Hg, and Ni in Katamba fish (Lethrinus nebulosus) and assess the health risks to the coastal community of Baliara Village, Kabaena Islands. Method: The study used a quantitative approach with an observational design and an Environmental Health Risk Analysis (EAHR) method. Data were obtained through field and laboratory research. The human sample consisted of 97 respondents, while the fish sample consisted of 3 specimens. Result: The results showed an average fish consumption rate of 217 g/day. The average concentration of heavy metals in fish was Pb 0.599 mg/kg, Cd 0.342 mg/kg, Hg 0.001 mg/kg, and Ni 0.974 mg/kg. The average daily intake of respondents for each metal was Pb 1.345 mg/kg/day, Cd 0.751 mg/kg/day, Hg 0.0022 mg/kg/day, and Ni 2.07 mg/kg/day. The risk value (RQ) showed that Pb, Cd, and Ni had RQ > 1, while Hg RQ < 1. Conclusion: An RQ value > 1 indicates a potential health risk, both immediately and in the long term (up to 30 years). Recommended risk management strategies include reducing consumption rates and exposure to fish from affected areas.
Copyrights © 2025