J. Yamamoto et al., ESTIMATE OF CADMIUM CONCENTRATION IN COAS TAL SEAWATER USING BOILED AND SEMIDRIED WHITEBAIT, Shokuhin Eiseigaku Zasshi, 34(2), 1993, pp. 148-152
Bolied and semi-dried whitebait was used to estimate coastal seawater
pollution by cadmium. The cadmium contents of samples were accurately
analyzed using a method involving extraction with dithizone-benzene an
d back-extraction with 1% nitric acid. The concentration of cadmiun in
semi-dried whitebait collected from the Setonaikai coast was found to
be higher than that of fish from the Pacific coast. The cadmium conte
nts in coastal seawater and boiled semi-dried whitebait showed a good
correlation (r=0.8542, n=9, p<0.01). It is considered that the cadmium
content of the boiled and semi-dried whitebait is a good index of pol
lution of coastal seawater by cadmium.