Comparative Assessment of Radioactive Strontium and Cesium Contents in the Feedstuffs and Dairy Products of Western Siberia

摘要

In this study, we investigated the accumulation of radioactive strontium and cesium in different types of plant feedstuffs and dairy products from some Siberian regions including the Novosibirsk, Kemerovo and Tomsk regions. It was shown that the content of radionuclides in the five types of plant feedstuffs did not exceed maximum permissible concentration (MPC). The content of ""Sr in the hay from the Kemerovo region was higher as compared with the hay from the Novosibirsk or Tomsk regions, but the content of ^Sr in concentrated feedstuffs in the Tomsk region was higher than that in Novosibirsk or Kemerovo regions. The concentration of 137Cs in silage and concentrated feedstuffs from the Tomsk region was higher as compared with other regions, whilethe content of this radionuclide in hay and silage was lower in Novosibirsk region as compared with Kemerovo or Tomsk regions. The content of both radionuclides in dairy products (whole and dry milk) from Novosibirsk and Tomsk regions was by several times (up to 100) below than the MPC. In conclusion, the territory of Western Siberia is excellent for the production of ecologically safe forage and animal husbandry, and it can be used forthe production of dietary.