Heterogeneity of 90Sr radioactive contamination at the head part of the East Ural radioactive trace (EURT)

The concentration ratio for 90Sr from soil to skeleton (CRskeleton-soil) was 2.0 ± 0.1 for M. oeconomus over the territory of the EURT, which is consistent with the minimum value of the same CRskeleton-soil for M. oeconomus from the Chernobyl area (Chesser et al., 2000).