ABSTRACT: Gold mining waste
and other human being’s rubbish containing heavy metal thrown into the water
would be contaminating river. This condition will push to the bio-magnification
and bio-accumulation under water living. The measured variables were Mercury (Hg),
Lead (Pb) and Cadmium (Cd) content which were concentrated in Baung fish body.
The researched environment parameters were Mercury (Hg), Lead (Pb) and Cadmium
(Cd) containing in the water and the rate of DO, BOD and COD. Block model was
used in this experimental model of this research. Sampling technique used was
simple random sampling, with Baung fish and the water from Kahayan river as
samples. Hg, Pb and Cd were measured with Atomic Absorption Spectrophotometer.
The result of this research indicates that the metal content in Baung fish in
point I, that is 150 meters before the gold mining site : Hg 0.09 mg/kg, Pb
0.16 mg/kg, Cd 0.01 mg/kg, then point II that is 0 meter of the gold mining
site : Hg 0.09 mg/kg, Pb 0.20 mg/kg, Cd 0.01 mg/kg and in point III that is 150
meters after the gold mining site : Hg 0.08 mg/kg, Pb 0.19 mg/kg, Cd 0.01
mg/kg. Metal content of Kahayan river water in point I : Hg 0.007 mg/L, Pb
0.030 mg/L, Cd 0.005 mg/L, then point II Hg 0.007 mg/L, Pb 0.030 mg/L, Cd 0.005
mg/L and in point III : Hg 0.006 mg/L, Pb 0.030 mg/L, Cd 0.005 mg/L. BAF in
point I : Hg 2.4518, Pb 1.1478, Cd 0.4067, point II : 2.7667, Pb 1.3689, Cd
0.4200, and in point III : Hg 2.8703, Pb 1.3178, Cd 0.4200. Hg, Pb and Cd in
Baung fish is still under the limit of permittable metal contamination in fish
and its differential products according to the government regulation from
Dirjen POM No. 03725/B/SK/VII/89. The rate of DO, BOD and COD from this three
locations have over the permanent quality of PP No.82 in 2001 about water
quality management and water pollution management.
Keywords: Heavy metal Mercury
(Hg), Lead (Pb) and Cadmium (Cd), Atomic Absorption Spectrophotometer, Baung
fish (hemiarius stornii)
Penuli: Aqnes budiarti, Rini
yeni susanti
Kode Jurnal: jpfarmasidd080018
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