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The two dimensional, small-scale, distribution of labile trace metals was investigated in a sandy loam soil historically treated with sewage sludge. After deployment of two DGT (diffusive gradients in thin-films) probes, their 1.8×15cm windows were sliced into 5×5mm and 5×8mm rectangles to provide three vertical profiles with 5mm resolution. Both sets of profiles showed sharp maxima of Mn, Cd, Co,...
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