Fig. 4. Extracted metals vs. final pH, Kromme Rijn compared with Biesbosch for the 45-min extraction (
= Kromme Rijn, 
= Biesbosch)
Fig. 4. Extracted metals vs. final pH, Kromme Rijn compared with Biesbosch for the 45-min extraction ( = Kromme Rijn, = Biesbosch)