River Pollution by Heavy Metals and Associated Impacts on the Adjacent Community, the Case of Holeta and Golli Rivers, Holeta Town, Ethiopia

Table 6

The Pearson correlation test for the mean of each heavy metal in the water samples.

Metal	Pb	Ni	Mn	Fe	Co	Cu	Zn	Cd	Cr
Pb	1
Ni	0.8788	1
Mn	0.8080	0.9552	1
Fe	0.584	0.682	0.7018	1
Co	0.5325	0.7683	0.8378	0.4771	1
Cu	0.7522	0.4647	0.5184	0.2253	0.2843	1
Zn	0.7949	0.7052	0.7702	0.517	0.4808	0.8658	1
Cd	0.2976	0.1707	0.1854	-0.4253	0.2625	0.607	0.478	1
Cr	0.7464	0.8990	0.9438	0.6471	0.6868	0.5133	0.8326	0.2462	1

indicates a significant correlation at , and indicates a significant correlation at .