Research Article

Inferred Industrial and Agricultural Activities Impact on Groundwater Quality of Skhira Coastal Phreatic Aquifer in Southeast of Tunisia (Mediterranean Region)

Table 4

Pearson correlation matrix of water quality variables of the Skhira phreatic aquifer.

VariablesT (°C)pHECO2NaClKCaMgHCO3SO4NO3NO2NH4H2PO4FAlFeZn

T°C1-0.26220.3448-0.28210.35020.40800.38880.27480.47950.39920.3418-0.01420.5064-0.09760.09880.34940.40270.13940.2339
pH1-0.77960.8479-0.7591-0.8097-0.7664-0.5462-0.8120-0.8756-0.79940.4963-0.7304-0.5314-0.3805-0.8257-0.6325-0.6563-0.4568
CE1-0.88470.94420.92930.77630.86000.92590.76270.9332-0.75740.67260.73910.76540.94510.59740.85180.6886
O21-0.9138-0.9429-0.7757-0.7448-0.8569-0.9169-0.94450.7765-0.8609-0.6214-0.5593-0.9120-0.4843-0.7497-0.5753
Na10.96940.81910.81440.87190.84040.9822-0.75650.73550.65610.79370.94000.59210.79100.7367
Cl10.79110.81180.89500.88040.9718-0.74940.79460.62680.64910.91640.57420.78730.7403
K10.49330.72220.79980.7665-0.55730.65970.41910.60680.83760.63430.55860.4502
Ca10.82570.52160.8390-0.79000.52310.67950.72930.73210.43290.76560.7563
Mg10.78660.9052-0.62170.75380.67210.61370.88940.54830.77000.5879
HCO310.8721-0.50420.89990.43240.40610.84480.50010.62090.4372
SO41-0.75160.78640.68530.72830.92380.55930.81140.7054
NO31-0.4840-0.6834-0.6368-0.7192-0.3187-0.6955-0.6246
NO210.27280.29720.75130.32920.45790.3828
NH410.60810.64190.38670.90120.4966
H2PO410.69680.52160.61570.6625
F10.56490.76490.5731
Al10.57320.6085
Fe10.6062
Zn1