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Linear regression of distances from Bogoso gold mine and mercury levels in the surface soil and cassava crop
| Sample | Linear regression equation | Correlation coefficient |
|---|---|---|
| Soil | ||
| 0–5 cm | Y = 136.90 + 11.13X | 0.69 |
| 5–15 cm | Y = 205.99 + 66.12X | 0.72 |
| 15–30 cm | Y = 168.54 + 8.27X | 0.40 |
| Cassava | ||
| Leaves | Y = 154.60–2.76X | -0.98 |
| Flesh | Y = 134.89 + 1.01X | 0.25 |
| Peel-A | Y = 63.44 + 4.39X | 0.98 |
| Peel-B | Y = 44.83 + 9.14X | 0.85 |
Y concentration of mercury, X distance from the mine
