Parameter

Station 1

Station 2

Station 3

Mean

control

Iron

12.64

16.14

11.94

13.57 ± 1.838

4.673

Zinc

0.068

0.067

0.066

0.067 ± 0.001

0.021

Manganese

BDL

0.207

0.195

0.134 ± 0.095

BDL

Cobalt

10.16

10.82

2.980

7.987 ± 3.550

5.432

Lead

0.840

0.315

0.260

0.472 ± 0.261

0.270

Nickel

1.100

1.960

BDL

1.020 ± 0.802

BDL

Copper

BDL

1.740

BDL

0.580 ± 0.820

BDL

Chromium

BDL

2.560

BDL

0.853 ± 1.207

BDL

Cadmium

1.000

1.060

0.500

0.853 ± 0.251

0.080