It’s enough to make you cry over your moules frites. Scientists at Ghent University in Belgium recently calculated that shellfish lovers are eating up to 11,000 plastic fragments in their seafood each year. We absorb fewer than 1%, but they will still accumulate in the body over time. The findings affect all Europeans, but, as the most voracious consumers of mussels, the Belgians were deemed to be most exposed. Britons should sympathise – last August, the results of a study by Plymouth University caused a stir when it was reported that plastic was found in a third of UK-caught fish, including cod, haddock, mackerel and shellfish. Now, UK supermarkets are being lobbied to create plastic-free aisles by the campaign group A Plastic Planet, as a feature-length documentary, A Plastic Ocean, is released in Britain this week.....