Beer, Drinking Water And Fish: Tiny Plastic Is Everywhere

Plastic trash is littering the land and fouling rivers and oceans. But what we can see is only a small fraction of what’s out there.

Since modern plastic was first mass-produced, 8 billion tons have been manufactured. And when it’s thrown away, it doesn’t just disappear. Much of it crumbles into small pieces.

Scientists call the tiny pieces “microplastics” and define them as objects smaller than 5 millimeters — about the size of one of the letters on a computer keyboard. Researchers started to pay serious attention to microplastics in the environment about 15 years ago. They’re in oceans, rivers and lakes. They’re also in soil. Recent research in Germany found that fertilizer made from composted household waste contains microplastics.

And, even more concerning, microplastics are in drinking water. In beer. In sea salt. In fish and shellfish. How microplastics get into animals is something of a mystery, and Chelsea Rochman is trying to solve it.

Rochman is an ecologist at the University of Toronto. She studies how plastic works its way into the food chain, from tiny plankton to fish larvae to fish, including fish we eat.

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