43
Table 3 Density (ρ), content of total organic matter (TOM), and activity concentrations of
238
U in
the soils
Plot
Layer depth,
cm
ρ,
g/cm
3
TОM,
% of dry sample mass
A U , Bq kg
−1
SP S 1
0–5
1.61
2.9
8.1 ± 0.6
5–10
1.74
1.3 ± 0.1
5.2 ± 0.4
10–15
1.69
0.8 ± 0.1
3.7 ± 0.3
15–20
1.66
0.9 ± 0.1
4.4 ± 0.4
20–25
1.79
0.8 ± 0.1
4.5 ± 0.4
25–30
1.79
0.21 ± 0.02
5.0 ± 0.4
SP S 2
0–5
1.23
5.0 ± 0.1
6.2 ± 0.6
5–10
1.53
2.8 ± 0.1
7.4 ± 0.6
10–15
1.67
0.80 ± 0.08
5.0 ± 0.4
15–20
1.33
0.79 ± 0.08
3.7 ± 0.3
20–25
1.64
1.2 ± 0.1
3.1 ± 0.3
25–30
1.57
0.80 ± 0.05
5.6 ± 0.5
P1
0–5
0.12
82 ± 1.4
2.4 ± 0.3
5–10
0.21
79 ± 1
2.9 ± 0.3
10–15
0.29
79 ± 1
3.1 ± 0.3
15–20
0.31
80 ± 1
4.5 ± 0.4
S SL 1
0–5
0.30
9.0 ± 0.7
10.9 ± 0.8
5–10
0.23
10.7 ± 0.4
12.0 ± 0.8
10–15
0.37
2.3 ± 0.2
10.9 ± 0.8
15–20
0.50
2.8 ± 0.1
10.6 ± 0.8
20–25
0.42
1.0 ± 0.1
7.1 ± 0.6
25–30
0.45
0.36 ± 0.03
6.2 ± 0.6
30–35
0.41
0.30 ± 0.02
5.3 ± 0.5
35–40
0.29
0.11 ± 0.01
4.5 ± 0.5
P2
0–5
0.10
26.3 ± 1.2
11.7 ± 0.9
5–10
0.22
23.1 ± 0.3
9.4 ± 0.8
10–15
0.34
14.2 ± 0.6
7.7 ± 0.7
15–20
0.21
8.3 ± 0.4
7.5 ± 0.7
20–25
0.27
3.3 ± 0.1
6.3 ± 0.6
25–30
0.37
2.2 ± 0.1
6.8 ± 0.6
30–35
0.28
1.2 ± 0.1
6.0 ± 0.6
35–40
0.39
0.73 ± 0.03
4.1 ± 0.4
(continued)
Uranium and Its Distribution in Typical Belarusian Soils