found: Work cat: Kowalski, M. Mitigating Microplastics : Development and Evaluation of a Middle School Curriculum, 2016:abstract (Microplastics, plastic marine debris less than 5 mm in size, is a threat to the health of our oceans)
found: Wesch, C. Microplastics in freshwater environments : a need for scientific research and legal regulation in the context of the European Water Framework Directive, 2014.
found: Microplastics in freshwater ecosystems: what we know and what we need to know, 2014.
found: Urgert, W. Microplastics in the rivers Meuse and Rhine : developing guidance for a possible future monitoring program, 2015.
found: NOAA. Microplastic Marine Debris, accessed June 16, 2016 :(Primary microplastics are manufactured as microbeads, capsules, fibers or pellets ... Secondary microplastics are the result of larger pieces of plastic breaking down into smaller pieces. This occurs when plastic debris is exposed to sunlight and the plastic begins to weather and fragment)
found: UNEP Microplastics, accessed June 16, 2016:(Microplastics are tiny plastic particles up to 5 mm in diameter. In the last four decades, concentrations of these particles appear to have increased significantly in the surface waters of the ocean)
