Investigation of the Soan River Water Quality Using Multivariate Statistical Approach

Table 5

Principal components, loading factors, eigenvalues, and variance.

Premonsoon season			Postmonsoon season
Parameters	Components		Parameters	Components
	PC-1	PC-2		PC-1	PC-2
EC	0.97	0.24	EC	0.85	0.53
pH	0.01	-0.86	pH	-0.34	-0.83
Turbidity	-0.03	0.95	Turbidity	-0.42	-0.88
Alkalinity as CaCO3	0.94	0.29	Alkalinity as CaCO3	0.85	0.51
Bicarbonate	0.97	0.23	Bicarbonate	0.85	0.51
Calcium	0.82	-0.07	Calcium	0.75	0.63
Chloride	0.94	-0.25	Chloride	0.90	0.39
Hardness	0.99	0.04	Hardness	0.84	0.54
Mg	0.99	0.04	Mg	0.89	0.19
K	0.97	0.15	K	0.75	0.61
Na	0.62	0.71	Na	0.82	0.56
SO4	0.99	0.12	SO4	0.68	0.63
Nitrate (NO3)	-0.14	0.90	Nitrate (NO3)	0.35	0.84
TDS	0.98	0.19	TDS	0.85	0.53
DO	-0.33	-0.91	DO	-0.74	-0.61
BOD	0.40	0.91	BOD	0.73	0.57
COD	0.05	0.99	COD	0.89	0.43
TSS	0.10	0.93	TSS	-0.45	-0.86
Eigenvalues	10.86	5.77	Eigenvalues	15.67	1.08
% explained variance	60.35	32.11	% explained variance	87.1	6.01
% cumulative variance	60.35	92.46	% cumulative variance	87.1	93.11