From the BBC:
Scientists have found levels of microplastic pollution on beaches around Scapa Flow in Orkney are similar to those in industrialised areas like the Forth and Clyde.
Researchers at Heriot-Watt University in Edinburgh took more than 100 sediment samples from 13 beaches on Hoy and the Orkney mainland.
Some plastic is believed to come from clothes which contain polymer fibres.
These are not caught by washing machine filters or at treatment works.
The micro-particles are thought to have been blown up the east coast.
Read the full article here.