By Alexis Thorbecke, Office of Response and Restoration Marine Debris Program
Marine debris comes in all shapes and size, from large abandoned vessels and nets weighing multiple tons, down to tiny fibers from a cigarette butt. Some of the tiniest debris may be causing some big problems. Microplastics, or plastic pieces less than 5mm in size, are persistent and pervasive. Clothing and fishing nets can shed microfibers, which can be a type a microplastic. Cosmetics can contain tiny plastic beads that get washed down our drains and into our waterways. Large pieces of plastic can be beaten by the sun and waves until they fragment into a collection of microplastics. But, what happens when these miniscule microplastics end up in our bodies?