Heavy Metal Contents of Hg, Cd, Pb, and Cu in Mud Crab (Scylla Serrata) in Banten Bay, Indonesia

Abstract

The development of industry and residential areas around the waters of Banten Bay can increase the input of heavy metal waste and cause accumulation in aquatic biota, especially in mud crab (Scylla serrata). This study aims to determine the level of accumulation of heavy metals (Hg, Cd, Pb, and Cu) contained in mud crab meat in Bojonegara Coastal Waters, Banten Bay. Sampling of the mud crabs was carried out monthly for three months, from August to October 2020 in the waters. The research method consists of the calculation of Bioconcentration Factor (BCF), Maximum Weekly Intake (MWI), and Maximum Tolerable Intake (MTI). According to the analysis, content of heavy metals Hg, Cd, and Pb in mud crab was under the AAS sensitivity value used, which was <0.001 mg/kg, <0.005 mg/kg, <0.030 mg/kg, respectively, while for heavy metal Cu ranged from 4.44 to 13.52 mg/kg. The bioconcentration factor of the heavy metals Hg, Cd, and Pb in the water was classified as low accumulation, while heavy metal Cu in water was classified as medium to high accumulation. The safe limit for consumption of the mud crab meat taken in the waters was 12.94 kg meat/week (adults) and 3.88 kg meat/week (children).