No, it's a separate issue. It's microplastics. It's been an area of study in the oceans, where they're finding zones of concentrations of plastic. One of the sources is our plastic bags and all the plastics we use that get ground up and persist in the environment.
Interestingly, with microplastics, some are used in health and beauty products, so those nice skin scrubs that we all use contain actual plastics. Some companies are taking voluntary measures to stop using those now.