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Figure 4 | Chemistry Central Journal

Figure 4

From: Application of principal component analysis in the pollution assessment with heavy metals of vegetable food chain in the old mining areas

Figure 4

Biplot of PC1 and PC2 for vegetable data grouped on location, used 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; R, M and Ref symbolized vegetables samples from contaminated respectively reference areas and numbers 1 to 9 attached to previous symbols refer to vegetables species or edible part: 1 for parsley roots, 2 for carrot roots, 3 for onion bulbs, 4 for parsley leaf, 5 for carrot leaf, 6 for cabbage, 7 for lettuce, 8 for cucumber and 9 for green bean).

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BMC Chemistry

ISSN: 2661-801X

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