fig3

Figure 3. Principal component analysis using concentrations of Co, Cr, Cu, Ni, and Pb in tree organs – soils ( ,
), bark (
,
), popular leaves (
), and pine needles (
,
).
Figure 3. Principal component analysis using concentrations of Co, Cr, Cu, Ni, and Pb in tree organs – soils ( ,
), bark (
,
), popular leaves (
), and pine needles (
,
).
All published articles are preserved here permanently:
https://www.portico.org/publishers/oae/