Microbeads, those tiny plastic pellets found in body washes, facial scrubs, toothpaste and other toiletries and even pharmaceuticals, go down your drain, through the filters at most wastewater treatment plants and out into the environment. Once in the water, microbeads easily absorb endocrine-disrupting and cancer-causing chemicals like polychlorinated biphenyls (PCBs). The chemical-laden beads, which resemble fish eggs, are then eaten …