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Data on the Cd, Cu, Pb, and Zn contents in the bottom sediments of Amur Bay are presented. Contamination of bottom sediments is particularly heavy near the central part of Vladivostok, where the concentration of all metals, except for Cd, exceeds the threshold levels, at which negative biological effects are possible. Biological tests of marine crustaceans were conducted between 2003 and 2014 on water toxicity in this most contaminated bay water area. However, only in August 2003, September 2003, and July 2007, the survival rate of mysids in the surface water of the entire inner area was credibly lower than that in the outer part of the bay. In the following years, the ecotoxicological condition of the bay water improved owing to the decrease in contamination.

Analysis of ecotoxicological condition of Amur bay (the sea of Japan) based on chemical and toxicological indicators