Table 5.
BOD loadings (t/y) to European Marine regions and major BOD sources estimated for the 2010s.
| Marine region | BOD loading |
Sources contribution to the total BOD loading to the sea |
Coastal areasa contribution to the total BOD loading |
||||
|---|---|---|---|---|---|---|---|
| Domestic |
Industrial |
Livestock |
Urban wash off |
Natural areas |
|||
| t/y | % | % | % | % | % | % | |
| Greater North Sea, incl. the Kattegat and the English Channel | 598,911 | 18 | 22 | 37 | 18 | 5 | 33 |
| North East Atlantic Ocean | 301,117 | 5 | 72 | 2 | 1 | 19 | 80 |
| Baltic Sea | 284,739 | 21 | 19 | 24 | 15 | 22 | 28 |
| Celtic Seas | 236,270 | 14 | 15 | 53 | 15 | 4 | 34 |
| Aegean-Levantine Sea | 203,625 | 66 | 0 | 16 | 9 | 8 | 30 |
| Bay of Biscay and the Iberian Coast | 187,796 | 26 | 9 | 37 | 21 | 7 | 26 |
| Western Mediterranean Sea | 171,146 | 44 | 3 | 21 | 23 | 9 | 31 |
| Black Sea | 151,217 | 69 | 1 | 18 | 7 | 6 | 18 |
| Adriatic Sea | 135,321 | 41 | 8 | 26 | 19 | 7 | 25 |
| Black Sea – sea of Marmara | 92,366 | 81 | 0 | 8 | 8 | 2 | 37 |
| Ionian Sea and the Central Mediterranean Sea | 40,071 | 41 | 3 | 23 | 22 | 12 | 25 |
| Total | 2,402,580 | 30 | 20 | 27 | 14 | 10 | 36 |
a
Coastal areas are defined as catchments that quickly discharge to the sea, i.e. Shreve order of 1.