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Toxic ‘forever’ chemicals found in excessive levels in global groundwater, study says

Potentially toxic chemicals called PFAS (perfluoroalkyl and polyfluoroalkyl substances) are found in surface and groundwaters around the world at levels much higher than many international regulators allow, a new study found. Called “forever chemicals” because they fail to break down fully in the environment, PFAS have been used since the 1950s to make consumer products non-stick, oil- and water-repellent and resistant to temperature change.

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