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The number of commercial per- and polyfluoroalkyl substances (PFAS) that need screening for possible regulation number in the hundreds, not thousands, industrial chemists say (Integr. Environ. Assess. Manage. 2021, DOI: 10.1002/ieam.4450).
Their analysis counters a policy proposal in the European Union that would restrict production and use of most PFAS—persistent synthetic chemicals designed to resist degradation—as a single class. Exposure to PFAS that are metabolically active is linked to cancer, immune system problems, developmental problems, and other health effects.