Fig. 4
Geochemical speciation of Cr, Ni, Cu, Pb, Zn and Cd in soils (F1: acid-soluble fraction; F2: reducible fraction; F3: oxidizable fraction; F4: residual fraction).
Fig. 4 | Scientific Reports
Geochemical speciation of Cr, Ni, Cu, Pb, Zn and Cd in soils (F1: acid-soluble fraction; F2: reducible fraction; F3: oxidizable fraction; F4: residual fraction).
