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A new index is proposed to determine the affinity of heavy metals (HM) to carrier phases (AHM-fraction), which, in contrast to the traditional index pCHM = 100 CHM-fraction/CHM-soil (Fedotov et al., Environ Chem 16323-332, 2019; Land et al., Chem Geol 160121-138, 1999), considers the sum of all metals in the phase as a share of the sum of the bulk content of all HM in the soil. Then, index of the affinity of HM for the given phase (ALn-phase) is determined by formula AHM = (CHM-phase/ΣCHM-phase)/(CHM-soil/ΣCHM-soil), where CLn-phase is the
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