Geochemical indices and regression tree models for estimation of ambient background concentrations of copper, chromium, nickel and zinc in soil.
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DOI: 10.1016/j.chemosphere.2018.06.138
Abstract: Geochemical ratios between elements of environmental concern and Fe have been recommended for estimation of "background" concentrations of Cr, Cu, Ni and Zn in soil. However, little research has occurred to assess the consistency of… read more here.
Keywords: background concentrations; models estimation; regression tree; background ... See more keywords