Figure 3From: 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 vegetables data in PCA2-plant model. (FeP, MnP, ZnP, CuP, NiP, CdP and PbP are variables used in PCA2 –plant model that symbolized total contents of Fe, Mn, Zn, Cu, Ni, Cd and Pb in vegetable samples, reported to fresh matter; clay and pH are agrochemical soil parameters used in this model).Back to article page