Abstract
The paper presents the results of a comprehensive analysis of bottom sediment samples taken in 2020 during the Roshydromet marine scientific research in the Stepovoi and Litke bays of the Novaya Zemlya archipelago and in the coastal zone of the Kara Sea near Amderma village. All sediment samples were analyzed for the concentration of radionuclides 137Cs, 90Sr, 238Pu, 239 + 240Pu, and some samples were analyzed for the content of toxic chemicals: heavy metals, persistent organochlorine compounds, and aliphatic hydrocarbons. The analysis of the results showed that the levels of radionuclides and toxic chemicals in bottom sediments of the Stepovoi Bay are generally consistent with the data of similar surveys in previous years.
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