As

Cd

Cr

Cu

Hg

Pb

Zn

As

1

Cd

0.013

1

Cr

−0.013

0.012

1

Cu

−0.024

0.075*

−0.038

1

Hg

0.029

0.017

−0.014

−0.011

1

Pb

−0.032

−0.064*

0.003

0.136**

−0.016

1

Zn

0.109**

0.136**

0.017

0.108**

−0.024

−0.215**

1