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Table 8 Pearson’s correlation matrix among heavy metals concentration in soil and food samples

From: Accumulation of arsenic and other metals in soil and human consumable foods of Meherpur district, southwestern Bangladesh, and associated health risk assessment

Parameters

As

Co

Ni

Cu

Zn

Fe

Mn

Cr

Cd

Pb

Soil samples

 As

1

         

 Co

0.831

1

        

 Ni

0.854

0.995

1

       

 Cu

0.792

0.954

0.969

1

      

 Zn

−0.135

0.055

0.106

0.246

1

     

 Fe

0.871

0.969

0.977

0.954

0.179

1

    

 Mn

0.905

0.946

0.953

0.916

0.045

0.973

1

   

 Cr

0.903

0.967

0.971

0.932

0.053

0.981

0.987

1

  

 Cd

0.564

0.479

0.500

0.477

0.406

0.662

0.658

0.617

1

 

 Pb

0.829

0.861

0.901

0.940

0.365

0.913

0.848

0.871

0.551

1

Food samples

 As

1

         

 Co

0.942

1

        

 Ni

0.972

0.980

1

       

 Cu

0.460

0.471

0.484

1

      

 Zn

0.796

0.718

0.763

0.565

1

     

 Fe

0.978

0.989

0.990

0.463

0.743

1

    

 Mn

0.983

0.939

0.963

0.511

0.870

0.963

1

   

 Cr

0.963

0.963

0.979

0.538

0.865

0.969

0.984

1

  

 Cd

0.637

0.588

0.586

0.380

0.914

0.598

0.735

0.729

1

 

 Pb

0.960

0.963

0.977

0.508

0.857

0.970

0.969

0.992

0.717

1

  1. Bold figures indicate significant correlation (r > 0.7)