Bioacumulation of Heavy Metals Pb and Hg in Green Shells ( Perna viridis) in Pasuruan Waters Based on Different Seasons

Abstract

This study aims to determine the bioaccumulation of heavy metals lead (Pb), and mercury (Hg) in green mussels (Perna viridis), sediment, and water in green mussel cultivation in Pasuruan waters, East Java based on different seasonal variations. The study was conducted in the rainy season (February) and dry season (July). Green mussels, sediment, and water were taken from the green mussel cultivation in the winding waters of Pasuruan. Samples were taken at harvest age, namely the age of 6 months of maintenance. Samples of seawater, sediment, and green mussels were taken 3 times. Heavy metal testing follows SNI 01-2354.6-2006. Based on the results of the study, the Pb content in the sediment increased in the summer compared to the rainy season, from 3.76±0.77 mg/Kg to 6.99±0.16 mg/Kg (P0.05). The level of Hg in green mussels in the rainy season was 1.03±0.04 mg/Kg also did not show a significantly different value (P>0.05) compared to summer, namely 1.02±0.02 mg/Kg.