| Environmental impact factor (F) | Activity A1 | Activity A2 | Activity A3 | Activity A4 |
| F1 Temperature | 0 | 1 | 0 | 0.73 |
| F2 Air | 1 | 1 | 0.73 | 0.73 |
| F3 Noise | 1 | 1 | 0.73 | 0.73 |
| F4 Geology | 1 | 1 | 0 | 0.73 |
| F5 Sandstones | 1 | 1 | 0.73 | 0.73 |
| F6 Rocks | 0 | 1 | 0 | 0 |
| F7 Lagoons | 0 | 0 | 0 | 0.73 |
| F8 Cumulative coastal plain | 1 | 0 | 0.73 | 0.73 |
| F9 Surface water | 0 | 1 | 0.73 | 0.73 |
| F10 Groundwater | 1 | 1 | 0.73 | 0.73 |
| F11 Surface drainage | 1 | 1 | 0.73 | 0.73 |
| F12 Landscape structure | 1 | 1 | 0.73 | 0.73 |
| F13 Coastalvegetation | 1 | 1 | 0.73 | 0.73 |
| F14 Xeromorphic scrub | 1 | 1 | 0.73 | 0.73 |
| F15 Forestmicrophyll | 1 | 1 | 0 | 0.73 |
| F16 Endemic fauna | 1 | 1 | 0.73 | 0.73 |
| F17 Population dynamics | 0 | 1 | 0.73 | 0.73 |
| F18 Temporary workforce | 1 | 1 | 0.73 | 0.73 |
| F19 Urban infrastructure | 1 | 1 | 0.73 | 0.73 |
| Total | 14 | 17 | 10.22 | 13.14 |