Heavy metals and petroleum hydrocarbons contents in bottom sediments of Uglovoy Bay (Peter the Great Bay, Sea of Japan). O.V. LOSEV
Keywords:
heavy metals, oil products, toxicity, enrichment factor, ecological risk indexAbstract
Heavy metals and petroleum hydrocarbons contents in bottom sediments of Uglovoy Bay (Peter the Great
Bay, Sea of Japan). O.V. LOSEV (Far Eastern Interregional Department of the Federal Service for Supervision of
Natural Resources, Vladivostok).
Analysis of heavy metals and oil products content in bottom sediments of Uglovoy Bay was carried out. In February
2016, high contamination of bottom sediments with heavy metals and oil products was determined in the northern part of the Bay. At this time contamination of bottom sediments of the Uglovoy Bay had a high probability of toxicity to hydrobionts. Content pollutants in the bottom sediments in Uglovoy Bay decreased radically, after typhoon Lionrock followed by a heavy rainfall and flood in the south coast of Primorye from 30 to 31 August 2016. In the throat of the Bay,
around the mouth of polluted rivers and at the oyster distribution site the accumulation of pollutants was determined
in September 2016. According to the data of the sampling of bottom sediments in autumn 2016 and winter 2017 the
potential toxicity of the biotope of the Bay decreased radically.
