Kandungan Logam Berat Timbal (Pb) pada Daging Kerang Bulu (Anadara Antiquata) di Perairan Pantai Kecamatan Pantai Cermin.pdf

Abstract

The coastal area of Pantai Cermin District, Serdang Bedagai Regency has a plenty of marine biota, one of which is the feather clam (Anadara antiquata). The feather clam functions as a bioindicator of water pollution because it is able to accumulate heavy metals such as lead (Pb). This study aims to determine the level of Pb content in the feather clam, water, and substrate at three observation stations with different activities. The sampling method was Purposive Sampling at tourism of site, site with no activity, and site of ship tracks. As station 1,2 and 3 respectively Pb content in the feather clam meat at stations 1 and 2 was still below the threshold (<0.07 mg/kg), but at station 3 it reached 4.16 mg/kg, exceeding the quality standard of 1.5 mg/kg. The Pb content in water at all stations was still below the threshold of 0.008 mg/l. However, the Pb content in the substrate exceeded the threshold (25 mg/kg) at all stations, especially at station 2 (55.3 mg/kg). These findings indicate that human activities affect environmental pollution which has an impact on the quality of the feather clam.