From the presence of microplastics recorded on CPR samples it is clear that microplastics are widely distributed in the North-East Atlantic with their frequency increasing towards the coasts (particularly in the southern North Sea). From retrospective analysis of some CPR samples spannincg three decades it appears that microplastics are increasing in frequency through time (Science (2004) 308:834). The incidence of monofilament netting snagged by the CPR towed body also seems to be increasing, particularly in the southern North Sea.
Read more: Thompson, R.C., Olsen, Y., Mitchell, R.P., Davis, A., Rowland, S.J., John, A.W.G., McGonigle, D. and Russell, A.E., 2004. Lost at sea: where is all the plastic? Science, 304: 838.