Studi Pendahuluan Penilaian Resiko Lingkungan Menggunakan Logam Berat dalam Sedimen Permukaan di Perairan Semarang, Jawa Tengah

The aims of this study was to conduct a preliminary study ecological risk assessment of metals (Cd, Cu, Ni, Pb, dan Zn) in surface sediment from coast of Semarang waters. Sediment samples were collected from 13 sites. Samples were analyzed for organic matter and metals used a total digestion technique. Sediment heavily contaminated are evaluated by the Sediment Quality Guidelines (SQG) of US EPA. The degree of contaminant (Cd) was estimated as very high at each site. Two sets of SQGs, effect range-low/effect range median values and TEL/probable effect level (PEL) values were used in this study. Sediment from the each site are judged toxic when two or more of the PEL value exceed EPA guidelines. The result from this study are agreement with sediment toxicity test result. Prosiding Pertemuan Ilmiah Nasional Tahunan VIII ISOI 2011. Hal. 218-227