4 Isotope Geochemistry in the Environment
81
Table 4.7. Radioactivity (BqL 4 ; errors _+10%) on particles and filtrated river water. (after
yon Gunten et al. 1988)
Date
Filtration
Nuclides
1986
(sizes in gtm)
1-131 Te-132
Ru-103
Cs-134
Cs-137
5.2.
D, folded filter
22.2 20.3
1.9
0.9
1.2
P. folded filter
2.2
3. l
0.7
0.2
0.25
5.4.
D, folded filter
7.0
10.9
1.1
0.4
0.8
P, folded filter
0.9
1.0
0.2
0,04
0.08
5.5.
D, <0.05
8.1
9.0
0.9
<0.06
0.6
P, >0.45
!.0
2.1
0.6
0.2
0.2
P, 0.2 - 0.45
0.04 0.2
0.05
0.01
0.01
P, 0.05 - 0.2
0.03 0.1
0.02
nd
0.01
5.12.
D, <0.05
10.7 7.0
1.6
0.7
1.1
P, >0,45
0.4
1.l
0.I
nd
0.1
P, 0.2 - 0.45
0.3
006
0.2
nd
0.05
P, 0.05 - 0.2
0.2
nd
0.04
nd
0.06
5.20.
D, <0.05
6.4
nd
1.1
nd
0.4
P, >0.45
0.3
< 1.7
0.06
0.04
0.04
P, 0.2 - 0.45
0.04 <0.5
0.02
<0.001
0.01
P, 0.05- 0.2
0.03 nd
0.01
nd
0.01
D: dissol',-ed load; P: suspended toad/particles; nd: not detected
Table 4.8. Radioactivity (BqL'l : errors-t--10%) on colloids and in filtrated groundwater.
Activities normalized to April 30th, 1986. (after yon Gunten et al. 1988)
Date
Distance of
Filtration
Nuclides
May
of well from
({am)
!-131 Te-132
1986
river (meters)
Ru-103
Cs-134,137
13
2.5
D, <0.05
7.4
2.9
08
nd
P, >0.05*
0.04
005
0.02
nd
5
D, <0.05
12.8 3.3
0.9
nd
P, :>0.05*
0.02
0.05
nd
nd
2.5
D, <0.05
12.8 nd
1.2
nd
P, >0.05"
0.1
<0.09
<0.002
<0.002
5
D, <0.05
8.7
nd
0.9
nd
P, >0.05*
<0.004 <0.09
<0.001
<0.002
4.5
D, <0.05
<0.1
nd
<0.04
<0.03
deep well
P, >0.05*
<0.003 <0.08
<0.001
<0.001
D:dissolved load; P:particulatesdcolloids:*Sum of activity on 0~45.0.2, 0.05 {am filters