
Tracing Contaminant Fate from Exposure to Biological Impact
Our Group

Todd Harris
Research Associate
My research into dietary lipids, nutrition and health began with an interest in an enzyme that metabolizes oxidized lipids, soluble epoxide hydrolase (PhD with Bruce Hammock, UC). My research in Amy's lab continues to explore the impact of diet-derived lipids on cellular processes.

Jillian Rohonczy
Postdoctoral Fellow
Jillian completed her PhD in Chemical and Environmental Toxicology at Carleton University. Her research examined how environmental contaminants affect fish and amphibians, focusing on per- and polyfluoroalkyl substances (PFAS). Building on her expertise in PFAS effects in aquatic organisms, Jillian is exploring PFAS transformation by gut microbiota. Outside the lab, Jillian enjoys riding horses, scuba diving, reading, and crafting.

Yuki Liang
PhD Student
I did my BScH in Chemistry with a minor in Food Science at the University of British Columbia.My research focuses on understanding human exposure to PFAS by analyzing biosolids and other environmental matrices. I am particularly interested in PFAS precursors and other organofluorine compounds that conventional targeted analytical methods may not capture well. To investigate these compounds, I use complementary analytical techniques: LC-MS/MS and 19F NMR spectroscopy. Outside of lab, I enjoy playing volleyball, skiing, hiking, and going on road trips.

Amanda Sakyi
PhD Student
Amanda completed her BScH in Biochemistry at Carleton and began her PhD specializing in Chemical and Environmental Toxicology. She aspires to become a forensic toxicologist. Amanda is exploring how toxicants are bioactivated and how C. elegans responds to oxidative stress. Outside of the lab, Amanda spends her free time dancing or playing her clarinet, cooking, and hiking.

Genevieve Hache
PhD Student
Geneviève completed her BScH in Biochemistry at the University of Ottawa. Motivated by her interdisciplinary interest in toxicology and microbiology, she’s currently studying the effects of PFAS microbial cycling in model systems. Geneviève enjoys nerding out through tabletop games or video games, working out at a rock climbing gym or a squash court, and jamming out with the National Capital Concert Band.

Caitlyn Hsiung
MSc Student
Caitlyn completed her BScH in Biomedical Toxicology (co-op) at the University of Guelph. Inspired by her previous co-op work term placements, she is currently pursuing an MSc, studying the effects and bioaccumulation of PFAS during the early development of fish. Outside of the lab, Caitlyn enjoys travelling, photography, painting, and discovering new restaurants to try in Ottawa.

Emily Blokland
MSc Student
Emily completed her BScH in Environmental Science with a concentration in chemistry at Carleton University. She is currently working on her MSc in Chemistry with a specialization in Chemical and Environmental Toxicology, studying PFAS on indoor particulate matter. Outside the lab, Emily enjoys reading, hiking, and baking.

Nathaniel Chan
BScH Student
Nathaniel is finishing their honours degree in Chemistry and Earth Sciences at Carleton University. Passionate about analytical chemistry and safety standards, their research project investigates the bioreactions of PFAS used in cosmetics when exposed to wastewater-treatment bacteria. Outside the lab, Nat can be found playing games/watching movies with friends, learning SCA historical fencing, and caring for their small menagerie of pets (including two snakes, a gecko, and their very fluffy cat).