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Stepping up the fight against food contamination

They may sound exotic or obscure to most of us, but they are an integral part of our everyday lives, whether we know about them or not. Known as perfluoroalkyl substances (PFAS), they are chemical compounds which are used in a wide variety of industrial products, from food and drink packaging to fire-fighting foams, to dirt- or water-proofing treatments for carpets or clothing. The drawback is that these chemicals have now spread throughout the environment.

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