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Table 3

Principal component analysis of groundwater parameters

ParametersComponent
PC1PC2PC3PC4PC5PC6
% of Variance 24.602 16.058 11.993 8.609 7.300 6.416 
SSP 0.865 −0.403     
Na+ 0.767 −0.459     
pH 0.758      
SAR 0.750 −0.501     
CO32− 0.623      
RSC 0.595   0.536   
TDS 0.508 0.783     
EC 0.533 0.753     
Salinity 0.598 0.675     
HCO3  0.632 0.405 0.480   
Ca2++Mg2+  0.489 0.655    
Fe2+   0.564    
PO43−   −0.552   0.506 
Cl    −0.517   
K+    0.472   
As   0.513  −0.587  
Mn2+     0.574  
Cu2+     0.477 0.574 
Zn2+   −0.435   −0.490 
ParametersComponent
PC1PC2PC3PC4PC5PC6
% of Variance 24.602 16.058 11.993 8.609 7.300 6.416 
SSP 0.865 −0.403     
Na+ 0.767 −0.459     
pH 0.758      
SAR 0.750 −0.501     
CO32− 0.623      
RSC 0.595   0.536   
TDS 0.508 0.783     
EC 0.533 0.753     
Salinity 0.598 0.675     
HCO3  0.632 0.405 0.480   
Ca2++Mg2+  0.489 0.655    
Fe2+   0.564    
PO43−   −0.552   0.506 
Cl    −0.517   
K+    0.472   
As   0.513  −0.587  
Mn2+     0.574  
Cu2+     0.477 0.574 
Zn2+   −0.435   −0.490 
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