The Cowichan River delta on Vancouver Island, B.C. Researchers found fibreglass particles in more than 96 per cent of sediment samples collected across the Cowichan-Koksilah Estuary. (Gerry Thomasen/Flickr), CC BY Walk along British Columbia’s shorelines and you quickly notice the signs of human-made activities and marine industry: boats anchored and hauled out for repair in marinas, abandoned vessels, the smell of fresh paint, workers sanding hulls and stacks of fibreglass materials waiting to