STUDI KANDUNGAN LOGAM BERAT CADMIUM (Cd) PADA KERANG HIJAU (Mytilus viridis) YANG DIJUAL DI PASARTRADISIONAL PABEAN KOTA SURABAYA

Abstract

Green mussels ( Perna viridis/Mytilus viridis) live in tropical seas such as those in
Indonesia. Sea is one of waters that receive the negative impact of pollutant wastes produced
by human activities. Heavy metals are among those pollutants mostly found in waters as the
consequence of industrial waste and domestic waste contamination. Cadmium has the highest
enzyme activity among those other heavy metals, so that the existence of cadmium in green
mussels may endanger one's health since it can cause a damage to urinary, respiration,
Circulation, and reproduction systems.
The aim of this study is to learn about the cadmium content in green mussels from
Kenjeran, Sidoarjo and Madura sold at Pabean Market of Surabaya. The method employed in
this study is descriptive method based on laboratory test result. The sampling is done by
means of purposive sampling and there are 6 samples taken from 6 green mussels sellers.
It can be concluded from this study that green mussels from 3 regions namely
Sidoarjo, Kenjeran and Madura sold at Pabean Market positively show pink color after being
qualitatively tested with color test in the laboratory, while quantitatively it is proven that
cadmium content in those green mussels is above the floating limit score of 0,2 ppm
established by SNI under No. 01-2896-1998. The cadmium content in green mussels from
Kenjeran is of 0,369 ppm and 0,348 ppm, Sidoarjo is of 0,258 ppm and 0,267 ppm, and
Madura is of 0,212 ppm and 0,217 ppm.
It is suggested that people must be very careful while consuming those green mussels
from Kenjeran, Madura or Sidoarjo which content of cadmium is over the permitted limit
established by SNI since it may cause health problem and body damage. One way to reduce
the risk of cadmium danger is to soak the mussels in an acid solution of cooking star fruit and
lime before cooking them