Abstract
Samples of Patella coerulea (Linnaeus), Brachydontes variabilis (Krauss), Monodonta turbinata (Born) and surface seawater were collected at eight locations along the coast of Ras Beirut, Lebanon, and analysed for lead, cadmium, copper, nickel and iron. With the exception of cadmium, the metal levels found in the three molluscs appear to be high in relation to levels reported by investigators from other coastal areas. The average values for lead, cadmium and nickel within these animals were quite similar. Concentrations of copper in P. coerulea were lower, but concentrations of iron were much higher than those found in both B. variabilis and M. turbinata. Further studies of metal levels in various other intertidal organisms from Ras Beirut, together with investigations into the possible effects of seasonal changes on metal concentration and distribution, are currently under way.
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