| Table 5.9 Dredged material licensed for disposal in Scottish waters, 1992-1996 |
| Licence | Licence | Dumped | | Contaminant levels (tonnes) dumped |
|
issued |
quantity | wet |
Cadmium |
Chromium |
Copper |
Mercury |
Nickel |
Lead |
Zinc |
| 1992 | 35 | 5,920,005 | 3,841,296 | 0.900 | 108.000 | 82.000 | 1.700 |
39.000 |
111.000 |
245.000 |
| 1993 | 26 | 3,174,050 | 2,025,525 | 2.400 | 50.000 | 44.000 | 0.800 |
21.000 |
63.000 |
132.000 |
| 1994 | 23 | 3,643,250 | 1,822,053 | 0.900 | 42.000 | 36.000 | 0.500 | 20.000 |
56.000 |
122.000 |
| 1995 | 32 | 6,186,600 | 4,782,421 | 1.120 | 155.000 | 120.000 | 3.450 | 65.500 |
153.000 |
348.000 |
| 1996 | 29 | 3,971,045 | 2,601,864 | 0.399 | 55.600 | 89.000 | 0.734 | 25.800 |
81.400 |
155.000 |
| Source: Marine Lab Aberdeen |
|
