Analisis Kandungan Logam Berat Kadmium (Cd) dan Timbal (Pb) pada Kerang Bulu Anadara antiquata Di Perairan Pantai Mangrove, Kabupaten Serdang Bedagai, Sumatera Utara

Abstract

Mangrove Beach is one of the beaches with great natural potential and is located in Serdang Bedagai Regency, North Sumatra. The waters of Mangrove Beach are widely used for various community activities that have the potential to increase water pollution by heavy metals. This study aims to analyze the content of heavy metals cadmium (Cd) and lead (Pb) in blood cockles Anadara antiquata, sediment and water in the waters of Mangrove Beach. Samples were taken from three stations using the purposive sampling method. Analysis of heavy metals cadmium and lead was carried out using Atomic Absorption Spectroscopy (AAS). The results of the study showed that the content of Cd (0,0010 – 0,0015 mg/kg) and Pb (0,0017 – 0,0023 mg/kg) in blood cockles was still below the maximum limits set by BPOM. The content of Cd (0,03 – 0,06 mg/kg) and Pb (0,5 - 1 mg/kg) in sediment was also still below the quality standards of ANZECC and ARMCANZ. The content of Cd (0,000003 – 0,000009 mg/kg) and Pb (0,000007 – 0,000014 mg/kg) in water was still far from the quality standard limits based on Government Regulation 22 of 2021. This study indicates that the waters of Mangrove Beach are relatively safe from heavy metal pollution of cadmium and lead, but continued research is still needed