Figure 1From: Application of principal component analysis in the pollution assessment with heavy metals of vegetable food chain in the old mining areasScree plot and PC loadings of soils data, in PCA1-soil model. (FeS, MnS, ZnS, CuS, NiS CdS, PbS are variables used in PCA1-soil model that symbolized total contents of Fe, Mn, Zn, Cu, Ni, Cd and Pb in soil samples).Back to article page