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Figure 2.25 Proportion of different categories of marine litter found in the 100-metre surveys on Frenchbeaches in 2006Instead, in terms of numbers and volume, plastic is the most common item found in Belgium.2.3.1.3 The Celtic SeasIn the Celtic Seas over 70% of the marine litter surveyed in the 100-m surveys, during the OSPARmarine litter Monitoring project, was plastic and polystyrene (see figure 2.26) the next mostabundant category was sanitary waste at 12.68 percent with the other 9 cateogries of litter makingup the remaing 13%.Figure 2.26 Proportion of marine litter categories on Celtic Seas beaches2.2.1.4 Bay of Biscay and Iberian CoastOn the Iberian coast beaches again the most common marine litter items were plastic andpolystyrene, although in the lowest proportion (62.44%). However unlike other Regions sanitaryitems and paper and cardboard make up a much greater percentage of the total with a combinedtotal of 29% (see figure 2.27).26