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Les substances per- et polyfluoroalkylées (PFAS) sont au centre de nombreuses préoccupations toxicologiques et environnementales ainsi que de scandales réglementaires depuis deux décennies. Des recherches antérieures ont mis en évidence une longue histoire d’obstruction active, de diversion (« science bending ») et de manipulation réglementaire par les plus grandes entreprises du secteur de l’halogénation, en lien avec l’appauvrissement de la couche d’ozone et la toxicité de certains tensioactifs fluorés (PFOS et PFOA).

Révélations exclusives sur une contamination aux PFAS ignorée - En février 2024, une recherche conjointe du Réseau européen d'action sur les pesticides (PAN Europe) et de ses membres a révélé une forte augmentation de la contamination des fruits et légumes européens par des pesticides appartenant au groupe chimique problématique des PFAS, également connus sous le nom de "forever chemicals" (polluants éternels). Le présent rapport se concentre sur leur produit de dégradation final, l’acide trifluoroacétique (TFA), un produit chimique très persistant.

PFAS: Une contamination importante du sol, de l’air et de l’eau par des composés perfluorés

Per- and polyfluoroalkyl substances (PFAS) have been at the center of numerous toxicological and environmental concerns and regulatory scan- dals for two decades. Previous research has shown a long history of active obfuscation, misdirection (‘science bending’) and regulatory manipulation by the largest halogenation businesses, related to the depletion of the ozone layer and the toxicity of some fluorinated surfactants (PFOS and PFOA). We screened publications for potential evidence of other strategies of deception and obfuscated information regarding PFAS and fluoropolymers. A directed effort was identified to influence the scientific understanding of the environmental source and effects of ultrashort PFAS, especially trifluoroacetic acid (TFA). Critical issues in the current analytical approach to PFAS monitoring were identified, as well as evidence of a silently abandoned “total organofluoride” technique. The non-specific character of the production, incineration and degradation processes is discussed, inc

The fate, effects, and treatment of per- and polyfluoroalkyl substances (PFAS), an anthropogenic class of chemicals used in industrial and commercial production, are topics of great interest in recent research and news cycles. This interest stems from the ubiquity of PFAS in the global environment as well as their significant toxicological effects in humans and wildlife. Research on toxicity, sequestration, removal, and degradation of PFAS has grown rapidly, leading to a flood of valuable knowledge that can get swamped out in the perpetual rise in the number of publications. Selected papers from the Journal of Hazardous Materials between January 2018 and May 2022 on the toxicity, sequestration, and degradation of PFAS are reviewed in this article and made available as open-access publications for one year, in order to facilitate the distribution of critical knowledge surrounding PFAS. This review discusses routes of toxicity as observed in mammalian and cellular models, and the observed human health effects i