
doi: 10.1007/bf00280700
The leachability of Mn, Zn, Cd, Ni, V, Cu, Cr, and Pb was studied in two purely organic spruce forest soils: one control soil and one similar soil heavily polluted by Cu and Zn from a brass foundry in southern Sweden. Artificial rainwater, acidified to pH 4.2, 3.2, and 2.8 was used in the experiment. The 10% residence times, estimated from the experimental data, varied from 3 yr (Mn) to 70 to 90 yr (Pb) in the control soil and from 2 yr (V) to > 200 yr (Ph) in the polluted soil with a precipitation water of pH 4.2. Residence times for most elements studied (except V and Cr) decreased with pH of precipitation water.
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