86
Highest concentrations of particulate Zn (3200 mg/kg) was found in the sediments
of Rhine River at 80 cm depth. The concentrations of particulate Zn decreased to 840
mg/kg at 50 cm depth (Fig. 4.44).
-20
0
20
40
60
20
' ~
60
Elbe l~ver
M=in River
Rhine River
8C
,
80
. . . . . .
o
2oo
4oo
26o
46o
o
2bo
400
800
1600
-20
0
20
40
60
80
0
0
Mmin ~ e r
"~ 20
IO
u l
4o
~60
80
0
0
1600
3200
-20
0
20
40
Weser R~ver
80~
o
~
4~o
Weser River
0
800
1600
Fig. 4,44. Dissolved Zn ( ~
. nM) and particulate Zn ( m
, mg/kg) in the sediments.