Environmental Impact Assessment of Taza City’s Wastewater: Application through Principal Component Analysis

Table 4

Correlation matrix.

		T	pH	Cl	Cond	SM	Turb	COD	BOD5	SO4	NO3	NO2	NH4
Correlation	T	1.000
	pH	−0.347	1.000
	Cl	0.110	−0.218	1.000
	Cond	0.058	−0.195	0.370	1.000
	SM	−0.087	−0.050	0.286	0.510	1.000
	Turb	−0.026	0.031	0.240	0.549	0.531	1.000
	COD	−0.031	−0.084	0.155	0.536	0.430	0.300	1.000
	BOD5	0.285	−0.061	−0.157	0.404	0.461	0.323	0.640	1.000
	SO4	−0.248	−0.026	0.358	0.585	0.270	0.346	0.594	0.109	1.000
	NO3	0.016	0.169	0.357	0.432	0.265	0.490	0.228	0.049	0.516	1.000
	NO2	−0.348	0.304	0.090	0.112	−0.080	−0.014	0.007	−0.094	0.061	0.110	1.000
	NH4	0.285	−0.246	0.329	0.657	0.590	0.446	0.727	0.692	0.541	0.379	−0.127	1.000