1 Przemiany Me w jeziorach

0. ?°		Cadmium conc. (ng kg^-1) 40 60 80 100 120 -1-1-1-1-1—1
IOOO		— ■-
2000		/ 9 / ■
3000		1 m / B \
4000		\ B \ ■
5000		/ •s

Fig. 8.18 Cadmium concentrations with depth into seawater. Source of data; Bruland, 1980 [28].

Nitrate conc. (/imol kg'¹) Phosphate conc. (^.moL kg'¹)

Fig. 8.19 The variation of; (a) nitrate levels with depth, and (b) phosphate levels with depth in seawater. Source of data; Bruland, 1980 [28].

Atmospheric precipitalion

Ruvial infLow

M Dissolved

Fluvial outflow

M Particulate

1

Fig. 8.25 The transfer and fate of heavy elements in a lakę system.