Doing something as simple as washing your hair may raise a new threat to aquatic health. Many personal-care products have been formulated with plastic beads the size of a sand grain — known as microbeads — which add a gritty texture. Microbeads are designed to be flushed down the drain.
![microbeads](https://osu-wams-blogs-uploads.s3.amazonaws.com/blogs.dir/2648/files/2016/05/microbeads-1-1-e1487629463809.jpg)