Table 18.9 - Estimated world input of petroleum hydrocarbons to the sea
Source: Clark, 1989
| Source | Input (million t/year) |
|---|---|
| Transportation | |
| Tanker operations | 0.70 |
| Tanker accidents | 0.40 |
| Bilge and fuel oils | 0.30 |
| Dry docking | 0.03 |
| Non-tanker accidents | 0.02 |
| TOTAL | 1.45 |
| Fixed installations | |
| Coastal refineries | 0.10 |
| Offshore production | 0.05 |
| Marine terminals | 0.02 |
| TOTAL | 0.17 |
| Other sources | |
| Municipal wastes | 0.70 |
| Industrial waste | 0.20 |
| Urban runoff | 0.12 |
| River runoff | 0.04 |
| Atmospheric fall-out | 0.30 |
| Ocean dumping | 0.02 |
| TOTAL | 1.38 |
| Natural inputs | 0.25 |
| SUM TOTAL | 3.25 |