Science & technology | Plastic and health

Microplastics have not yet earned their bad reputation

There are worrying signs. But more thorough studies of their health effects are coming

A plastic bag floats in the sea
Photograph: Fredrik Naumann/Panos Pictures
|7 min read

IN 2018 A TEAM of Austrian scientists discovered tiny fragments of plastic, known as microplastics, in stool samples from people in several countries. Since then, such particles have been found in human blood as well as organs, including the lungs, liver, kidneys, heart and even the brain. They have also turned up in the placenta and breast milk. And, according to some recent studies, the amount making its way into the body is increasing.

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This article appeared in the Science & technology section of the print edition under the headline “Mixed bag”

From the April 19th 2025 edition

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