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| Confluence-sediment |
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| Geographic coordinates | S1: 12.11235˚N 14.9919˚E | S2: 12.11419˚N 14.99150˚E | Annual average |
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| Parameters | Mean S1 | Mean S2 | Back-ground | WHO (2009) µg/kg | |
| Pb (µg/kg) | 55.66 ± 1.15 | 10 ± 0.00 | 32.83 ± 22.84 | 20.00 | 15 - 50 |
| CrVI (mg/kg) | 0.14 ± 0.00 | 0.19 ± 0.01 | 0.16 ± 0.02 | 90.00 | 50 |
| MnII (mg/kg) | 0.2 ± 0.00 | 0.8 ± 0.00 | 0.5 ± 0.3 | 850.00 | 20 - 50 |
| Cd (mg/kg) | trace | Nd | trace | 0.3 | 5 |
| Cu (mg/kg) | 55.66 ± 1.15 | 10 ± 0.00 | 32.83 ± 22.84 | 45.00 | 2000 |
| Fe (mg/kg) | 0.14 ± 0.00 | 0.19 ± 0.01 | 0.16 ± 0.02 | 46000 |
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