78
d
0
0
~
0
-*
/
~2
I
I
I
I
0
o
1
o o ~
o o o o
o o o ~
{w0) J, uetujpos Ultll!M 41dep
A
C
v
r.J
et
t"4
v.,-.
~t
O
O
O
'7,
"
m.
O
A
,.,q
e-.
Fig. 4.37. Seasonal variation of heavy metals in the pot~-wat~ at I.,auff~a
Zn and Cu at the sediment-water interface in the Neckar River. The good agreement
with the stoichiometry given by Sigg (1986) suggests the biogenic source of dissolved
Cu and Zn at the sediment-water interface.
d
0
0
~
0
-*
/
~2
I
I
I
I
0
o
1
o o ~
o o o o
o o o ~
{w0) J, uetujpos Ultll!M 41dep
A
C
v
r.J
et
t"4
v.,-.
~t
O
O
O
'7,
"
m.
O
A
,.,q
e-.
Fig. 4.37. Seasonal variation of heavy metals in the pot~-wat~ at I.,auff~a
Zn and Cu at the sediment-water interface in the Neckar River. The good agreement
with the stoichiometry given by Sigg (1986) suggests the biogenic source of dissolved
Cu and Zn at the sediment-water interface.