LEVELS OF CADMIUM IN SEA FOOD PRODUCTS

Abstract

The concentrations of total cadmium were determined in 448 samples of processed fishery products comprising crustaceans, molluscs, marine fish and brackish water fish. Shrimp product, the major export item, contained on an average 0.122 ppm cadmium and 20 % of crustaceans analysed did not contain cadmium on detectable level. Average
content of cadmium in 68 marine fish of 9 species was 0.153 ppm and 35 % of the samples did not contain the element. Of the total number of crustaceans analysed only 2 % showed a level > 0.5 ppm. All the 174 samples of molluscan products, except 3 canned oysters, showed cadmium concentration far below the limit allowed. The average cadmium content in molluscan products was 0.552 ppm.