Table 7.

Pearson's correlation coefficients for Cd, Co, Cr, Cu, Fe, Na, Pb, and Zn in the samples of the medicinal plants.

	Cd	Co	Cr	Cu	Fe	Na	Pb	Zn
Cd	1
Co	−0.8220	1
Cr	−0.3192	−0.2774	1
Cu	0.3054	−0.7933	0.8049	1
Fe	−0.9911	0.8905	0.1901	−0.4295	1
Na	0.9055	−0.5026	−0.6912	−0.1276	−0.8409	1
Pb	−0.5899	0.0251	0.9535	0.5887	0.4772	−0.8769	1
Zn	0.6888	−0.9791	0.4671	0.9007	−0.7792	0.3160	0.1790	1