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| Chari-sediment |
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| Geographic coordinates | S1: 12.0902˚N 15.1155˚E | S2: 12.08039˚N 15.10585˚E | Annual average |
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| Parameters | Mean S1 | Mean S2 | Back-ground | WHO (2009) µg/kg | |
| Pb (µg/kg) | 112.33 ± 30.61 | 10 ± 0.00 | 61.16 ± 54.13 | 20.00 | 15 - 50 |
| CrVI (mg/kg) | 0.21 ± 0.005 | 0.13 ± 0.00 | 0.17 ± 0.03 | 90.00 | 50 |
| MnII (mg/kg) | 0.8 ± 0.00 | 1.1 ± 0.00 | 0.95 ± 0.15 | 850.00 | 20 - 50 |
| Cd (mg/kg) | trace | Nd | trace | 0.3 | 5 |
| Cu (mg/kg) | 1.02 ± 0.06 | 0.09 ± 0.01 | 0.55 ± 0.46 | 45.00 | 2000 |
| Fe (mg/kg) | 0.30 ± 0.02 | 5.34 ± 0.05 | 2.82 ± 2.52 | 46000 |
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