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Ökotoxikologische Risikobewertung von Nano- und Mikroplastik (NanoTrust-Dossier Nr. 066 - Dezember 2024)
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This ecotoxicological risk assessment from the Austrian NanoTrust program evaluates nano- and microplastics as persistent global pollutants, highlighting the challenge of general risk assessment due to diverse polymer types, and emphasizing the role of plastic additives such as UV stabilizers and plasticizers as endocrine disruptors that can leach and bind to particle surfaces.
Nano- und Mikroplastik (NMP) sind allgegenwärtig, persistent und, wie mittlerweile weit bekannt, ein globales Problem für Mensch und Umwelt. Aufgrund der sehr unterschiedlichen Kunststoffarten aus denen NMP entstehen, erweist sich eine allgemeine Risikobewertung als herausfordernd. Hinzu kommt, dass viele Kunststoffe Additive wie z. B. UV-Stabilisatoren oder Weichmacher enthalten, die hormonell wirksam sind – sogenannte endokrine Disruptoren (EDs) – und sich leicht aus den Kunststoffen lösen können. Außerdem können manche hormonaktive Stoffe sehr gut an die Oberfläche von NMP-Partikeln binden und mit diesen in der Umwelt verbreitet werden.
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