Wed, Jan 29
|Mike's Place Pub
Ottawa Pub Night - Dr. Jillian Rohonczy
Ottawa Pub Nights are back!
Time and Location
Jan 29, 2025, 5:00 p.m. – 7:00 p.m.
Mike's Place Pub, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
About the event
We are hosting our first Ottawa Pub Night since 2019. Join us on January 29th!
Title:Â Effects of short-chain per-and polyfluoroalkyl substances (PFAS) on northern leopard frog (Rana pipiens) developmental, physiological, and immunological responses
Speaker:Â Dr. Jillian Rohonczy, Carleton University
When: Wednesday, January 29, 2025 | 5:00 pm - 7:00 pm
Where: Mike's Place Pub, 209 Nideyinà n (Formerly UC) at Carleton University – 1125 Colonel By Drive, Ottawa
Cost: Pay what you can – help support our AGM student awards!
Make a donation here: https://www.laurentiansetac.ca/support-pubnights
Abstract: The chronic toxicity of short-chain (≤ 7 perfluorinated carbons) per- and polyfluoroalkyl substances (PFAS) is relatively understudied despite their prevalence and persistence in the environment. We conducted two exposure studies to examine the chronic toxicity and bioconcentration of short-chain PFAS using northern leopard frog (Rana pipiens) tadpoles. The first exposure study examined the effects of two short-chain perfluoroalkyl carboxylic acids (PFCAs), perfluorobutanoic acid (PFBA) and perfluorohexanoic acid (PFHxA), on northern leopard frog tadpole growth and development endpoints. The second study investigated the effects of two short-chain perfluoroalkyl sulfonic acids (PFSAs), perfluorobutanesulfonic acid (PFBS) and perfluorohexanesulfonic acid (PFHxS), on northern leopard frog tadpole growth, development, stress, and immune metrics. We found that that some short-chain PFAS influence tadpole growth, hepatic health, and lipid metabolism, and can exert endocrine-disrupting effects on tadpoles during early development. These studies furthered our understanding of the effects of short-chain PFAS exposure on aquatic organisms and provided essential information for ecological risk assessments of these compounds.
Biography: Jillian completed her PhD at Carleton University and is currently a postdoctoral fellow in the Rand and Environmental Biogeochemistry and Biotechnology Labs at Carleton University. Her research focuses on microbial transformation of PFAS.
