Suchergebnisse

The paper presents an analysis of the radioecological state of the terrestrial ecosystems in north european part of the Russia, which were exposed to the a products of the Chernobyl accident. The analysis of the state of marine and terrestrial objects included in the food network of the population and forming the dose of internal radiation of the population of the Murmansk region is given. Comparative estimates of the effects of global radionuclide deposition in the North-European territory are given.

We examined the radioecological status of seawater from arctic seas currently used for coastal and offshore innovative industrial and socio-economic projects. We analyzed processes that affect the formation of the current radioecological background. We showed that the volumetric activity of man-made radionuclides in seawater has been steadily low over the past decade. We believe that this is caused by the general influence of global sources of radioactive contamination. Among them, atmospheric deposition and transoceanic transport are most significant. We determined a substantial difference between the concentration of 137Cs in seawater of the Barents and Kara seas and that in the Laptev and East Siberian seas. This difference is determined by the significant influence of polluted Atlantic water on the Barents and Kara seas and its far weaker impact on the Laptev and East Siberian seas. We found out regional and local patterns of the distribution of radionuclides in the environment of arctic seas, which are the most important for the study and development of the logistics network in the Russian Arctic in the light of the prospective development of the transport and resources of those seas.