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Figure 5 | Chemistry Central Journal

Figure 5

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

Figure 5

Biplot of PC1 and PC2 for vegetables data grouped on vegetables species, used PCA3-plant model. (Fe, Mn, Zn, Cu, Ni, Cd and Pb are variables used in PCA3-plant model that symbolized total contents of metals in vegetable samples, reported to fresh matter; 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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