I spent 5 days at the Shetlands to cycle, some birdwatching and looking for nurdles. I reached the most Northern house of the UK, which is also my most Nothern destination. I was so glad that I did not found them in either of the locations facing the North Sea and also not in the Holm of Skaw, where the North Sea is embraced by the Atlantic Ocean. However, one day later I reached Mavis Grind, where the geological ridge separate both Seas at limited distance. At the Atlantic beach, there were loads of high tide debris, filled with plastic litter and also lots of nurdles. Thus also the Shetland beaches are not clean and their sheep are feeding on it. Removing nurdles from the system is not really possible.
But I noticed another problem namely besides the highway there were cans and plastic bottles all over. That is an issue which could be solved easily I would think.