Seasonal differences in the 137Cs body burdens of each zone: the highly contaminated area and the not highly contaminated area.

In zone III and zone IV, weak but significant seasonal changes were observed. On the other hand, no significant seasonal change in the 137Cs body burden was observed in zone II. However, we evaluated the seasonal changes in the highly contaminated area group, comprised of Narodichi and Lugini, and in the not highly contaminated area group, comprising the other eight cities, separately, and in both area groups, significant seasonal changes were observed. The 137Cs body burden is expressed as the median (25th–75th).Seasonal differences in the 137Cs body burdens of each zone: the highly contaminated area and the not highly contaminated area.