Journal of Chemistry

Research Article

Hydrogeochemical Features and Genesis of Confined Groundwater and Health Perspectives for Sustainable Development in Urban Hengshui, North China Plain

Table 2

Linear relationship (R2) between various chemical parameters of groundwater in the study area.
IndexpHECTHTDSK+Na+Ca2+Mg2+Cl−SO42−HCO3−NO3−NO2−NH4+F−ZnMnFe
pH1                 
EC−0.261                
TH−0.360.93∗1               
TDS−0.280.97∗0.98∗1              
K+0.45−0.05−0.06−0.011             
Na+−0.170.95∗0.91∗0.97∗0.021            
Ca2+−0.400.92∗0.99∗0.97∗−0.070.89∗1           
Mg2+−0.330.94∗0.99∗0.99∗−0.060.92∗0.97∗1          
Cl−−0.300.97∗0.98∗0.99∗−0.030.96∗0.96∗0.97∗1         
SO42−−0.240.810.93∗0.93∗0.080.86∗0.90∗0.93∗0.87∗1        
HCO3−−0.10−0.12−0.12−0.05−0.410.06−0.16−0.08−0.14−0.011       
NO3−−0.30−0.24−0.12−0.180.12−0.27−0.07−0.15−0.15−0.15−0.421      
NO2−0.34−0.03−0.10−0.030.87∗0.04−0.12−0.09−0.080.08−0.08−0.141     
NH4+−0.07−0.11−0.14−0.14−0.01−0.13−0.14−0.13−0.14−0.120.010.140.051    
F−0.360.090.040.13−0.060.270.010.070.090.100.50∗−0.62∗0.16−0.151   
Zn−0.140.070.05−0.01−0.04−0.090.090.03-0.030.11−0.130.07−0.08−0.11−0.201  
Mn−0.010.67∗0.480.44−0.030.400.54∗0.430.450.36−0.23−0.25−0.100.010.100.181 
Fe0.110.01−0.03−0.050.02−0.06−0.01−0.04−0.05−0.02−0.14−0.01−0.070.20−0.150.060.461
∗significant relation (absolute value of correlation coefficient >0.5).