| survey of levels of cadmium in oysters, mussels, clams and scallops from the pacific northwest coast of canada. | field and retail collections of bivalves from the pacific northwest, canada, were analysed for cadmium concentrations by atomic absorption spectrophotometry (aas). both collections of varnish (nuttallia obscurata) and manila (venerupis philippinarum) clams contained cadmium concentrations of less than 0.5 µg g(-1), well below international safety guidelines of 1 and 2 µg g(-1) wet weight cadmium for the european and hong kong markets, respectively, as well as the 2 µg g(-1) safety guideline set ... | 2009 | 24785175 |