Elements

Cr ± SD (ppm)

Cd ± SD (ppm)

Pb ± SD (ppm)

Sites

A

12.26 ± 0.52 range (10.35 - 13.35)

6.17 ± 1.0 range (3.48 - 8.00)

0.74 ± 0.08 range (0.59 - 1.18)

B

18.62 ± 0.9 range (15.8 - 21.3)

4.28 ± 0.71 range (3.39 - 5.3)

0.4 ± 0.06 range (0.35 - 0.47)

C

6.13 ± 0.6 range (5.2 - 7.45)

5.45 ± 0.6 range (3.39 - 7.13)

0.36 ± 0.08 range (0.29 - 0.41)

D

7.27 ± 0.9 range (5.85 - 9.3)

4.49 ± 0.48 range (2.6 - 6.00)

0.84 ± 0.08 range (0.65 - 0.89)

E

10.5 ± 0.8 range (9.3 - 11.65)

5.03 ± 0.38 range (2.78 - 6.9)

0.52 ± 0.08 range (0.47 - 0.59)