Table 7 Summary of the PCA loading for 24 variables
Variables | Factor 1 | Factor 2 | Factor 3 | Factor 4 | Factor 5 |
|---|---|---|---|---|---|
PH | −0.505140 | −0.423783 | −0.523819 | 0.281011 | 0.231837 |
Sp. conductivity | −0.973220 | 0.078222 | 0.062930 | −0.105619 | −0.052161 |
Turbidity | 0.027478 | −0.437808 | 0.685626 | 0.218108 | −0.157060 |
Total alkalinity | −0.835965 | −0.389071 | −0.155823 | 0.100161 | 0.047304 |
Alkalinity (OH) | −0.298613 | −0.443572 | −0.304156 | 0.432541 | −0.020149 |
Alkalinity (HCO3) | −0.854348 | −0.365501 | −0.133041 | 0.060517 | 0.052251 |
Total hardness | −0.959257 | −0.105187 | 0.034686 | −0.051546 | 0.055754 |
Iron | −0.176503 | −0.311548 | 0.125313 | 0.259103 | −0.703320 |
Calcium | −0.917427 | −0.056955 | 0.121062 | −0.094580 | 0.070455 |
Magnesium | −0.458933 | −0.356458 | −0.138375 | 0.118694 | −0.520944 |
Sodium | −0.615277 | 0.107953 | 0.049094 | 0.078692 | 0.121033 |
Potassium | −0.871104 | 0.105514 | 0.060418 | −0.269454 | −0.140015 |
Arsenic | −0.014235 | 0.364144 | −0.699425 | −0.245118 | −0.361498 |
Cadmium | −0.450872 | 0.598943 | 0.040729 | 0.214109 | 0.166345 |
Zinc | −0.722452 | 0.384863 | −0.011331 | −0.468652 | 0.035537 |
Chromium | −0.029260 | 0.269727 | 0.122538 | −0.544966 | −0.284185 |
Sulfate | −0.302047 | 0.583734 | 0.107611 | 0.416829 | 0.057136 |
Phosphate | −0.351122 | 0.592348 | 0.052115 | 0.504778 | 0.008429 |
Soluble silica | −0.251729 | 0.252323 | −0.793143 | 0.170839 | 0.013400 |
Nitrate | −0.372521 | 0.430667 | 0.393509 | 0.435109 | −0.044675 |
Chloride | −0.835263 | 0.230616 | 0.155028 | 0.033166 | −0.119517 |
Ammonia | −0.350977 | −0.448496 | 0.129445 | −0.199509 | 0.507021 |
TDS | −0.973249 | 0.057827 | 0.065802 | −0.112613 | −0.037220 |
Carbonate | −0.885900 | −0.171159 | 0.147483 | −0.192210 | 0.008697 |