Tiny pieces of plastic (microplastics), have been found at the highest camp on Mt. Everest (26,000 ft up) and the bottom of the Mariana Trench (36,000 ft down) [1-2]. Because microplastics are everywhere, it is important to start understanding the health impacts of this environmental contaminant. We will investigate sources of microplastics, the health impacts on inshore fish, and the biomagnification potential of plastic additives up the food chain in patch reef ecosystems in the Florida Keys.