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Table 14 Pearson’s correlation matrix

From: Estimation of pollution indices and hazard evaluation from trace elements concentration in coastal sediments of Kerala, Southwest Coast of India

 

As

Cd

Cu

Cr

Mn

Zn

Ni

Pb

Ti

Fe

MC

pH

EC (µS/m)

OM

Silt + clay (%)

Sand (%)

As

1.0

               

Cd

− 0.236

1.0

              

Cu

0.231

0.578*

1.0

             

Cr

0.049

0.515*

0.699**

1.0

            

Mn

0.170

0.567*

0.889**

0.718**

1.0

           

Zn

0.156

0.185

0.447

0.694**

0.598**

1.0

          

Ni

0.187

0.588*

0.963**

0.738**

0.922**

0.552*

1.0

         

Pb

− 0.062

0.410

0.573*

0.760**

0.679**

0.295

0.555*

1.0

        

Ti

0.053

0.385

0.570*

0.818**

0.633**

0.736**

0.632**

0.484*

1.0

       

Fe

0.264

0.444

0.898**

0.745**

0.925**

0.597**

0.886**

0.647**

0.717**

1.0

      

MC

0.269

− 0.079

0.102

0.072

.086

0.016

0.129

0.107

− 0.083

0.212

1.0

     

pH

0.110

− 0.064

− 0.268

0.073

− 0.085

0.090

− 0.206

0.075

0.015

− 0.005

0.110

1.0

    

EC (µS/m)

0.301

0.175

0.513*

0.238

0.346

0.051

0.467

0.121

0.109

0.496

0.705**

− 0.072

1.0

   

OM

− 0.119

0.280

0.489

0.209

0.410

0.004

0.431

0.310

0.305

0.529*

0.035

0.037

0.244

1.0

  

Silt + Clay (%)

0.032

0.230

0.574*

0.362

0.477

0.221

0.460

0.374

0.342

0.604**

0.190

− 0.249

0.522*

0.577*

1.0

 

Sand (%)

0.134

0.133

0.125

0.006

0.114

0.078

0.184

− 0.111

0.093

0.069

− 0.154

0.084

0.056

− 0.056

− 0.184

1.0

  1. MC: moisture content; EC: electrical conductivity; OM: organic matter content
  2. *Correlation is significant at the 0.05 level (two-tailed)
  3. **Correlation is significant at the 0.01 level (two-tailed)