Ecotoxicogical assessment of banned and novel PFAS as individuals or in mixture
The group of per- and polyfluoroalkyl substances (PFAS) are thermally and chemically stable with strong hydrophobic and lipophobic properties, making them highly suitable for many applications. However, they are part of the emergi...
The group of per- and polyfluoroalkyl substances (PFAS) are thermally and chemically stable with strong hydrophobic and lipophobic properties, making them highly suitable for many applications. However, they are part of the emerging chemicals identified to be persistent and bioaccumulative. They are very stable, non-degradable, and present all around the world. More than 9000 distinct individual compounds make up the PFAS group, with a carbon chain backbone between 4 and 14 C atoms in length, and a charged functional moiety: sulfonate or carboxylate. The two principal representatives and studied PFAS (perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS)) are banned in many countries, leading the major global manufacturers to find alternatives having shorter carbon chains (< C8) or with replacement chemistry with multiple ether-oxygens inserted between the perfluorinated carbon backbones, allowing the formation of non-covalent hydrogen bonds with a water molecule, which makes them more labile to degradation. However, those new chemicals have been identified in various environmental matrices are now becoming global contaminants. But our understanding of the PFAS alternatives toxicity is lacking in aquatic organisms and, in the case of emerging replacements and by-products, even not unexplored. Studies assessing their potential genetic, developmental, cellular, and systemic toxicities have not yet been conducted in aquatic organisms. To that purpose, the ECOPFAS project will investigate the acute toxicity, developmental toxicity, genotoxicity and toxicity pathways for PFAS alternatives in three freshwater species. ECOPFAS project will build on the expertise of the researchers involved together with the acquired data to provide a basis for a better understanding of the influence of the effects on individual and population fitness to support a broader integration of these data into risk assessment frameworks.ver más
15-11-2024:
PERTE CHIP IPCEI ME/...
Se ha cerrado la línea de ayuda pública: Ayudas para el impulso de la cadena de valor de la microelectrónica y de los semiconductores (ICV/ME)
15-11-2024:
REDES
En las últimas 48 horas el Organismo REDES ha otorgado 1579 concesiones
15-11-2024:
DGIPYME
En las últimas 48 horas el Organismo DGIPYME ha otorgado 3 concesiones
Seleccionando "Aceptar todas las cookies" acepta el uso de cookies para ayudarnos a brindarle una mejor experiencia de usuario y para analizar el uso del sitio web. Al hacer clic en "Ajustar tus preferencias" puede elegir qué cookies permitir. Solo las cookies esenciales son necesarias para el correcto funcionamiento de nuestro sitio web y no se pueden rechazar.
Cookie settings
Nuestro sitio web almacena cuatro tipos de cookies. En cualquier momento puede elegir qué cookies acepta y cuáles rechaza. Puede obtener más información sobre qué son las cookies y qué tipos de cookies almacenamos en nuestra Política de cookies.
Son necesarias por razones técnicas. Sin ellas, este sitio web podría no funcionar correctamente.
Son necesarias para una funcionalidad específica en el sitio web. Sin ellos, algunas características pueden estar deshabilitadas.
Nos permite analizar el uso del sitio web y mejorar la experiencia del visitante.
Nos permite personalizar su experiencia y enviarle contenido y ofertas relevantes, en este sitio web y en otros sitios web.