Open AccessDISTRIBUTION OF HEAVY METALS IN NATUNA COASTAL WATERS
Author(s) -
Sophia L. Sagala,
Rikha Bramawanto,
Anastasia Kuswardani,
Widodo S. Pranowo
Publication year - 2015
Publication title -
e-journal ilmu dan teknologi kelautan tropis
Language(s) - English
Resource type - Journals
ISSN - 2085-6695
DOI - 10.28930/jitkt.v6i2.9008
Subject(s) - zoology , chemistry , nuclear chemistry , biology
The study of Pb, Cd, Cu, Hg, and As and Fe in Natuna coastal waters, Riau Islands was conducted in November 2012. Water and sediment samples were collected from 35 stations by purposive sampling method and those heavy metals were analysed using Atomic Absorption Spectrophotometer, flame type (FAAS). The results showed that concentrations of total Pb, Cd, Cu, Hg, and As in surface water were below instrumentdetection limit( 2 µg/L for Pb , Cd , and Cu; 0.02 µg/L for Hg and As ) .Moreover , the concentration of metal Fe in surface water was 0.021-0.054 mg/L. Concentrations of Pb and Cu in sediment were 0.05-22.67 mg/kg and 3.77-11.00 mg/kg, respectively, at which the highest concentrations were found near Binjai Estuary.T hose concentrations were significantly below the standard levels set by CCME (2002) and ANZECC/ARMCANZ (2000).C oncentration of Fe in sediment varied from 751.13-2309.12 mg/kg and showed similar spatial distribution to Cu-in-sediment. No standard level for Fe in waters was available . Generally, it can be concluded that Natuna coastal water was still uncontaminated . Keywords : heavy metals, iron metal, Natuna coastal waters.