DE | Stations | |||||||
Aguigadji | Ahlan | Sele | Toho | |||||
Rainy season | Dry season | Rainy season | Dry season | Rainy season | Dry season | Rainy season | Dry season | |
Zn | 44.31 ± 2.82 | 31.92 ± 6.21 | 45.70 ± 0.88 | 30.64 ± 3.98 | 33.49 ± 2.54 | 31.2 ± 4.88 | 0.06 ± 0.02 | 0.02 ± 0.008 |
Cd | 3.02 ± 0.40 | 2.32 ± 0.08 | 3.00 ± 0.56 | 2.12 ± 0.03 | 2.10 ± 0.64 | 1.97 ± 0.35 | nd | 0.06 ± 0.05 |
As | 1.76 ± 0.96 | 0.4 ± 0.25 | 5.08 ± 3.10 | 0.45 ± 0.32 | 0.27 ± 0.24 | 0.18 ± 0.04 | nd | 0.03 ± 0.03 |
Pb | 265.96 ± 21.02 | 255.38 ± 79.09 | 235.70 ± 25.94 | 231.48 ± 20.04 | 209.05 ± 12.74 | 188.67 ± 34.41 | 0.43 ± 0.34 | 0.24 ± 0.17 |
Mn | 33.57 ± 13.79 | 2.22 ± 1.29 | 28.70 ± 4.79 | 2.63 ± 0.88 | 0.4 ± 0.35 | 0.04 ± 0.29 | nd | nd |
Ni | 57.05 ± 3.34 | 53.35 ± 8.01 | 61.98 ± 11.22 | 56.88 ± 3.01 | 15.07 ± 4.93 | 11.50 ± 1.12 | 0.06 ± 0.03 | 0.03 ± 0.02 |
Fe | 32.02 ± 0.80 | 26.01 ± 4.32 | 28.29 ± 6.39 | 25.38 ± 4.67 | 31.45 ± 1.58 | 23.85 ± 0.95 | 0.07 ± 0.004 | 0.05 ± 0.34 |
Hg | 0.25 ± 0.10 | 0.04 ± 0.005 | 0.46 ± 0.22 | 0.08 ± 0.001 | 0.43 ± 0.40 | 0.03 ± 0.02 | nd | nd |
Cu | 26.54 ± 1.92 | 18.31 ± 5.58 | 26.94 ± 2.04 | 25.19 ± 4.66 | 30.35 ± 2.37 | 31.25 ± 0.98 | 0.05 ± 0.02 | 0.02 ± 0.008 |
Cr | 30.4 ± 1.25 | 28.06 ± 1.96 | 29.04 ± 2.93 | 28.31 ± 5.45 | 79.31 ± 7.001 | 29.64 ± 9.63 | nd | nd |