Gradient
Colleen Clarke is a skilled Medical Device Toxicologist and Environmental Scientist currently employed at Gradient since May 2022. Colleen possesses a Master's degree in Chemistry with a specialization in Chemical and Environmental Toxicology, as well as a Bachelor's degree in Biochemistry, both from Carleton University. Prior experience includes serving as a Research Assistant in the Molecular Toxicology Lab at Carleton University, where Colleen developed a high-throughput oxidative stress assay and maintained C. elegans strains. Additional roles include Technical Writer and Chemist at Health Canada's Radiation Protection Bureau, where Colleen contributed to nuclear forensic investigations and assessed radiation levels in well water. Earlier work experience encompasses positions in customer service and film, highlighting versatility and teamwork skills.
Gradient
Gradient is an environmental and risk science consulting firm renowned for our specialties in Toxicology, Epidemiology, Risk Assessment, Product Safety, Contaminant Fate and Transport, Industrial Hygiene, Geographic Information Systems, and Environmental/ Forensic Chemistry. Since 1985, Gradient has employed sound science to assist national and global clients with resolving their complex environmental and human health challenges. Our scientists apply skills and expertise to challenging issues relating to chemicals in the environment, workplace and products. We work in a variety of fields affecting environmental and human health, including: Toxicology & Risk Sciences Exposure & Risk Assessment Epidemiology Ecological Risk Occupational Health & Safety Gene-Environment Interactions Chemistry/Forensics Chemical Fate & Transport Data Quality Management Remedial Strategies Air Quality Geographic Information System (GIS) Climate Impacts Water Resources Cost Recovery/Allocation Environmental Cost Estimation Global Chemical Registration & Notifications GHS Hazard Assessment Safety Data Sheet (SDS) Support Pharmaceuticals/ Biopharmaceuticals Medical Devices Predictive Toxicology Biocompatibility Nanotechnology Food Safety Green Chemistry & Alternatives Assessment