Akumulasi Logam Berat (Cu dan Pb) pada Rhizophora stylosa Berdasarkan Tingkat Pancang dan Pohon

Abstract

FITRI SIBURIAN: Accumulation of Heavy Metals (Cu and Pb) in Rhizophora stylosa Based Stake Level and Trees. Under the guidance of Yunasfi and Budi Utomo. Industrial activities, community and sea transport cause waste containing heavy metals that cause pollution to the mangrove ecosystem and degrade water quality.The purposes of this research were to analyzed the content of heavy metals Cu and Pb on roots, leaves, the bark of R. stylosa and to knew the ability of R. stylosa on accumulate heavy metals. The sample was located in Nelayan Village sub-district Medan Labuhan. Analysis of heavy metals Cu and Pb was carried out in a Laboratory Research, the Faculty of Pharmaceuticals, University of North Sumatera. By using the method Atomic Arbsorbsion Spectrophotometer (AAS). Results indicate heavy metal content of Cu and Pb in roots, bark and leaves higher on the tree than the stake. Based on bioconcentration factor, the ability of R. stylosa in accumulating heavy metals Cu categorized as high, while the accumulation of heavy metals Pb categorized as low.