“microplastic” pollution in the Great Lakes

Also, while it’s unknown where the ocean plastic came from, microscopic examination of Great Lakes samples has produced a smoking gun: many particles are perfectly round pellets. The scientists suspect they are abrasive “micro beads” used in personal care products such as facial and body washes and toothpaste. They’re so minuscule that they flow through screens at waste treatment plants and wind up in the lakes,, [email protected]

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