Analysis of the Ecotoxicological Conditions of Amur Bay, the Sea of Japan, by Chemical and Toxicological Characteristics

Data on the concentrations of Cd, Cu, Pb, and Zn in bottom sediments of Amur Bay are given. The pollution of bottom sediments is especially heavy near the central part of Vladivostok City, where the concentrations of all metals, except cadmium, are in excess of their threshold level above which adve...

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Bibliographic Details
Published in:Water resources 2019-05, Vol.46 (3), p.432-442
Main Authors: Cherkashin, S. A., Simokon’, M. V., Pryazhevskaya, T. S.
Format: Article
Language:English
Subjects:
Alliances
Aquatic crustaceans
Aquatic Pollution
Bay water
Bio-assays
Bioassays
Biological effects
Bottom sediments
Cadmium
Copper
Crustaceans
Earth and Environmental Science
Earth Sciences
Ecotoxicology
Heavy metals
Hydrobiology: Environmental Aspects
Hydrochemistry
Hydrogeology
Hydrology/Water Resources
Lead
Marine crustaceans
Metal concentrations
Metals
Organic chemistry
Pollution
Pollution control
Sediment
Sediments
Shellfish
Surface water
Survival
Toxicity
Waste Water Technology
Water Management
Water pollution
Water Pollution Control
Zinc
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Summary:Data on the concentrations of Cd, Cu, Pb, and Zn in bottom sediments of Amur Bay are given. The pollution of bottom sediments is especially heavy near the central part of Vladivostok City, where the concentrations of all metals, except cadmium, are in excess of their threshold level above which adverse biological effects are possible. Bioassay (2003–2014) has shown the toxicity of water for marine crustaceans in local areas within this most heavily polluted part of the bay. However, the survival rate of mysids in the surface water from the entire inner area was reliably less than that in the external part of the bay only in August and September 2003 and July 2007. In the following years, the ecotoxicological state of bay water improved, possibly because of a decrease in pollution.
ISSN:0097-8078
1608-344X
DOI:10.1134/S0097807819030059