Reporting on dredging and depositing activity in the Baltic Sea Dmitry Frank-Kamenetsky PRESSURE 3-2015, Copenhagen 7-9 October 2015
Reported dredged material • Reported data 2006-2014: Number of permits – Yellow: Revision of reported data (coordinates / analyses) 2006 2007 2008 2009 2010 2011 2012 2013 2014 Total Denmark 23 102 69 88 105 387 Estonia 14 4 2 7 7 10 0 5 49 Finland 7 7 7 14 9 7 7 6 8 72 Germany 9 7 12 7 6 7 3 6 57 Latvia 8 4 7 19 Lithuania 1 8 9 9 6 2 2 3 2 42 Poland 12 8 9 16 12 17 9 83 Russia 8 8 3 8 27 Sweden 20 21 17 13 17 11 16 115 Total 37 108 40 142 127 59 51 134 153 851
Dredged material spatial data reported by 2013 • Content: – Dredged material dump sites – Dredging sites • Different spatial data types – Points – Points: Circle areas – Lines – Polygons • Data quality – Accuracy (points vs. Areas) – Missing data from CPs
Dredged material spatial data processing • Are all locations equal or should there be weighting based on reported information? Weighting by total dumped (Mtonnes) No weighting (just locations)
Dredged material spatial data • Gridding approach: Weighting Index value – Multiple buffers to display immediate effect and adjacent effect: Example of 5 classes – Rules must be applied for the definition of adjacent effect: Based on reported attributes or fixed distances of the reported locations • Definition should be based on scientific research done related to ecotoxicity, drift etc.
Trends in amount of dredged material actually disposed at the Baltic Sea, 2007-2013 Russia 25 000 000 Denmark 20 000 000 Estonia tonnes 15 000 000 Sweden Poland 10 000 000 Lithuania 5 000 000 Latvia 0 Germany 2007 2008 2009 2010 2011 2012 2013 Finland
Total amounts of pollutants loads dumped with dredged material reported in 2013 Total CPs amount Load – primary list of substances (kg) (metric Cd Hg As Cr Cu Pb Ni Zn ∑PAH9 ∑PCB7 tonnes) EE 1 - - - - - - - - - - - FI 2 621 661 16 3 1789 5466 4732 1898 2895 13386 10125 148 DE 164 560 1,14 0,75 169,7 1431 434 302 582 2557 0,39 0,00002 DK 949 899 197 3785 3891 7556 5936 9864 5681 26955 149 0,34 LT 2 2 313 636 45 18 575 1336 1168 611 1567 5048 15 1,05 SE 4 834 694 4419 4051 85160 271403 238959 512611 150682 1002517 3340 27 Total 8 884 450 4678 7858 91585 287192 251229 525286 161407 1050463 13629 176
Main contaminants disposed at sea with dredged material (based on 2010-2013 data).
Reported dredging material • Reported data 2006-2014: Reporting format used – Red: No reporting, Yellow: old, Green: new 2006 2007 2008 2009 2010 2011 2012 2013 2014 Total Denmark 23 102 69 88 105 387 Estonia 14 4 2 7 7 10 0 5 49 Finland 7 7 7 14 9 7 7 6 8 72 Germany 9 7 12 7 6 7 3 6 57 Latvia 8 4 7 19 Lithuania 1 8 9 9 6 2 2 3 2 42 Poland 12 8 9 16 12 17 9 83 Russia 8 8 3 8 27 Sweden 20 21 17 13 17 11 16 115 Total 37 108 40 142 127 59 51 134 153 851
Reported dredging material • Reported data 2014: Completeness of reporting – Quick overview of reported information: coordinates and completeness of contaminant loads – Yellow: missing information on concentration of pollutants in the dredged material, Orange: Coordinates pending correction, Red: Data not reported yet 2014 Denmark 105 Estonia 5 Finland 8 Germany Latvia Lithuania 2 Poland 9 Russia 8 Sweden 16 Total 153
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