Evaluation of Heavy Metal Levels in Seawater of Jakarta Bay, Indonesia

Abstract

Jakarta Bay is located in the north of Jakarta City and has the potential to be contaminated with dangerous chemicals. Research on heavy metal levels in this bay was carried out in March and September 2023, March and August 2021. This research aimed to determine heavy metal levels in the waters of Jakarta Bay which are related to marine organisms, recreation, and port interests. area. Water samples were taken using a water sampler at nineteen stations. All samples were analyzed using an Atomic Absorption Spectrophotometer. The results show that the levels of heavy metals Hg, Pb, Cd, Cu, Zn, Cr, As, and Ni are still within tolerance limits based on seawater quality guidelines set by the Indonesian Ministry of Environment.