Heavy Metal Contamination of Soils around a Hospital Waste Incinerator Bottom Ash Dumps Site

Table 5

Correlation matrix of heavy metals in soil.

Variables	Hg	Pb	Zn	Ag	Cr	Cd
Hg	1
Pb	0.960	1
Zn	0.979	0.944	1
Ag	0.992	0.976	0.956	1
Cr
Cd	0.984	0.981	0.984	0.988	0.637	1

Correlation coefficient significant at 95% confidence interval.