Parameter | Station 1 | Station 2 | Station 3 | Station 4 | Mean | control |
Iron | 12.93 | 14.82 | 12.01 | 4.736 | 11.12 ± 3.825 | 4.673 |
Zinc | 0.049 | 0.028 | 0.035 | 0.034 | 0.036 ± 0.008 | 0.021 |
manganese | 0.163 | 0.175 | BDL | 0.164 | 0.125 ± 0.073 | BDL |
Cobalt | 9.880 | 7.540 | 5.780 | 5.700 | 7.225 ± 1.700 | 5.432 |
Lead | 0.550 | 0.410 | 0.440 | 0.350 | 0.437 ± 0.073 | 0.270 |
Nickel | 0.760 | 0.680 | BDL | BDL | 0.189 ± 0.321 | BDL |
Copper | 0.640 | BDL | BDL | BDL | 0.160 ± 0.277 | BDL |
Chromium | BDL | BDL | BDL | BDL | BDL | BDL |
Cadmium | 1.220 | 0.780 | 1.020 | 1.080 | 1.025 ± 0.159 | 0.080 |