71
E
E
E
e-,
-10
0
20
< 20 nM
40
6O
8O
o
16o
26o
-,o
O' -.
20
%~
4O
,~
60
,
\
80
0
100
200
-10
ol
20
" 7
,/
4.0
~t
,/~'
80
0
100
200
Co (nM)
a. Elsenz
-l&
oj
{
201
401
6O
801
-4
-' o)
2
o
2
4
b. E n z
20
801
-4
-2
0
2
c. S c h w a r z b a c h
-lOt
oL_
!
201
40t
I
!
801
-4
-2
0
89 4
Saturation Index (SI)
0 CoS
0
5
10
15
20
40,::::::!!:!::::
60
80
0
5
10
15
Co (mg/kg)
20
Fig. 4.33. Dissolved Co, SI of CoS, and Co in the sediments (< 20 lam) of the tributaries