Table 5 Correlation of Pb, Cd, Cr, Cu, hg, Mn, and as concentrations in green tea.

From: Occurrence, exposure and health risk assessment of heavy metals in green tea samples cultivated in Hangzhou area

Heavy metals

Pb

Cd

Cr

Cu

Hg

Mn

As

Pb

1.0

0.21(0.022)

0.31(< 0.001)

0.066(0.47)

0.099(0.29)

0.18(0.044)

0.65(< 0.001)

Cd

 

1.0

0.1(0.28)

0.035(0.70)

0.2(0.028)

0.16(0.073)

0.28(0.002)

Cr

  

1.0

−0.15(0.11)

0.14(0.12)

0.26(0.005)

0.33(< 0.001)

Cu

   

1.0

0.085(0.35)

0.007(0.94)

0.16(0.066)

Hg

    

1.0

0.25(0.005)

0.19(0.036)

Mn

     

1.0

0.21(0.023)

As

      

1.0

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