Summary

One reason plastics are used so often is that they’re chemically inert, meaning bags, food containers, and cups don’t react with what we put in them. Yet they can still break down into microplastics, which turn up in drinking water, human blood, arteries, and brains. The consequences of that are uncertain. “Whether microplastics can directly cause human disease is still being researched,” said Wei Min, a chemist at Columbia University.

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