Table 11.

Pearson's correlation matrix between heavy metals of sludge and shoots of plants of HIE.

Heavy metals in sludge		Heavy metals in plant shoots
		Cd	Cr	Pb	Zn
Cd	Pearson Correlation	0.719	0.82	−0.303	0.984**
	Sig. (2-tailed)	0.171	0.09	0.62	0.002
	N	5	5	5	5
Cr	Pearson Correlation	0.477	0.173	0.48	0.248
	Sig. (2-tailed)	0.417	0.78	0.414	0.688
	N	5	5	5	5
Pb	Pearson Correlation	−0.14	−0.701	0.669	−0.186
	Sig. (2-tailed)	0.822	0.187	0.217	0.765
	N	5	5	5	5
Zn	Pearson Correlation	0.274	0.193	−0.164	0.604
	Sig. (2-tailed)	0.656	0.755	0.792	0.281
	N	5	5	5	5

** Correlation is significant at the 0.01 level (2-tailed).