The evaluation index system of oil spills on an offshore oil platform is shown in Table 2.
The index system of risk assessment about offshore oil platform oil spill
| First-grade . | Second-grade . |
|---|---|
| Oil overflow | |
| Oil characteristics | Toxicity |
| Persistence | |
| Flammability | |
| Viscosity | |
| Oil spill location | Sea-sensitive resources |
| Offshore distance | |
| Coastal area category | |
| Meteorological elements | Wind speed |
| Visibility | |
| Hydrological elements | Surface velocity |
| Surface flow direction | |
| Surface water temperature | |
| Wave height |
| First-grade . | Second-grade . |
|---|---|
| Oil overflow | |
| Oil characteristics | Toxicity |
| Persistence | |
| Flammability | |
| Viscosity | |
| Oil spill location | Sea-sensitive resources |
| Offshore distance | |
| Coastal area category | |
| Meteorological elements | Wind speed |
| Visibility | |
| Hydrological elements | Surface velocity |
| Surface flow direction | |
| Surface water temperature | |
| Wave height |