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| 577.6270968222 (1) |
| Acid mine drainage (1) |
| Biological characteristics (1) |
| Cumulative pollution (1) |
| Gold mining (1) |
| Klip River catchment (1) |
| Monitoring (1) |
| Nature -- Effect of human beings on -- South Africa -- Roodepoort (1) |
| Physicochemical parameters (1) |
| Tailings (1) |
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