McGill University
Candidat Ph.D.
superviseur(e): Jessica Head
Doug Crump, Environment and Climate Change Canada
Début: 2023-01-01

Projet

Risk assessment of UV absorbents in avian embryos
UV Absorbents (UVAs) are industrial chemicals used in various plastics and cosmetics. They protect products from UV damage. These chemicals leached into water systems and are now ubiquitous in the environment (water, air, sediment, dust). They also bioaccumulate and biomagnify in various species. Recent studies show they have been toxic to mammalian and aquatic species, but their risk yet to be understood in birds, which are exposed to UVAs through their diet. Therefore, my research will assess the exposure and effect of environmentally prevalent UVAs on the embryos domestic and wild bird species. I will analyze partitioning and metabolism of UVAs, as well as their physical and molecular effects through morphological and differential gene expression analyses respectively. This study will clarify the risk of UVAs and supplement national and international conventions aiming to regulate ubiquitous emerging chemicals.

Mots-clés

UV Stabilizers and filters , Gene expression analysis, environmental risk assessment, avian toxicology, toxicokinetics