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| Logon-sediment |
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| Geographic coordinates | S1: 11.98215˚N 15.02281˚E | S2: 12.05114˚N 15.05987˚E | Annual average |
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| Parameters | Mean S1 | Mean S2 | Back-ground | WHO (2009) µg/kg | |
| Pb (µg/kg) | 126 ± 16.52 | 10 ± 0.00 | 68 ± 58.77 | 20.00 | 15 - 50 |
| CrVI (mg/kg) | 0.17 ± 0.00 | 0.16 ± 0.001 | 0.16 ± 0.002 | 90.00 | 50 |
| MnII (mg/kg) | 0.3 ± 0.00 | 0.4 ± 0.00 | 0.35 ± 0.05 | 850.00 | 20 - 50 |
| Cd (mg/kg) | trace | nd | trace | 0.3 | 5 |
| Cu (mg/kg) | 3.23 ± 0.64 | 0.08 ± 0.02 | 1.65 ± 1.62 | 45.00 | 2000 |
| Fe (mg/kg) | 0.25 ± 0.00 | 5.79 ± 0.005 | 3.02 ± 2.77 | 46000 |
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