Accumulation of heavy metals Pb and Hg in feather shells (Anadara antiquata) in Lekok Coastal Waters, Pasuruan Regency

This research is a quantitative descriptive study that aims to determine the heavy metal contamination of Pb and Hg. Sampling was carried out exploratively in the waters of Lekok Beach, Pasuruan Regency. The data obtained were analyzed by descriptive analysis by comparing the quality standards of the Minister of Environment Decree No. 51 of 2004. And analyzed by correlation test to determine the relationship between the content of heavy metals Pb and Hg in seawater and sediment with feather shells. The results of this study indicate that shellfish (Anadara antiquata) can accumulate heavy metals Pb and Hg. The average accumulation of heavy metals Pb and Hg in Anadara antiquata was 2,315 ppm and 1,100 ppm. The average heavy metal content of Pb and Hg along the sea waters of the Lekok coast are 0.204 ppm and 0.073 ppm. In the sediment the average metal content of Pb and Hg is 5.318 ppm and 1.215 ppm. The heavy metal content has exceeded the quality standard limit that has been determined by the Decree of the Minister of the Environment No. 51 of 2004 and RNO, so that it can be harmful to human health who consume shellfish. The results of the correlation test showed that there was a positive correlation between the heavy metal content of Pb and Hg in sediment and seawater and the heavy metal content of Pb and Hg in shellfish.