Current state of the East Urals Radioactive Trace
In 2006 to 2009 the average minimum effective dose in settlements Allaki, Bagaryak, T.Karabolka, and Yushkovo located around the periphery of the EURT restricted area was 0.12 μSv·h -1. The average 90Sr contamination density of pasture soil within T.Karabolka was 5.9 kBq·m -2, within Bagaryak by the factor of 2 to 2.5 higher. 137Cs contamination density of pasture soil was 12.9 to 24.8 kBq·m -2. The average contamination density of kitchen garden soil within Bagaryak was 77.5 kBq·m -2. The 90Sr contamination density of soils along the Trace axis was 1.8 to 162.4 kBq·m -2, and for 137Cs this value was 2.2 to 24.4 kBq·m -2. Grass specific activity at various parts of the EURT territory varied from 11 to15 kBq·kg -1 in terms of 90Sr, and 3 to 60 kBq·kg -1 in terms of 137Cs. The highest specific activity both of 90Sr and of 137Cs in natural and fallow soils remained in the low part of the forest litter and steppe mat, as well as in soil 0-5 cm deep. Wild berries sampled from the Trace axis were contaminated with 90Sr one order of magnitude higher than mushrooms being hazardous in term of 90Sr dietary intake.