Aleicia Holland

de l'université de La Trobe (Australie)

viendra présenter ses travaux de recherche au LEMAR

le vendredi 19 octobre à 10h en A215.

Title: Dissolved organic carbon quality and its effect on metal toxicity in freshwaters

Abstract: Dissolved organic carbon (DOC), ubiquitous to natural waters, plays a key role in influencing metal speciation and bioavailability. The ability of DOC to alter the toxicity of metals depends on its concentration, source and composition. Each aquatic system is distinct, with a unique combination of organic matter sources, resulting in DOC with complex and heterogeneous chemical compositions.  Currently, there is limited research comparing the ameliorative effects of different DOCs, on metal toxicity. This information is required if we are to improve bioavailability‑based models for derivation and application of water quality criteria for metals. This seminar will explore how dissolved organic carbon differs between freshwaters in Australia and Brazil and how this influences metal toxicity to freshwater organisms.

 Venez nombreux !