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As a former professor at the University of California Santa Barbara, Dr. Marwood developed novel methods for assessing exposure to contaminants in aquatic systems, and evaluated the performance of biomarkers in mesocosm and field studies with aquatic organisms. Since leaving academia, he has focused on conducting and reviewing site-specific human health and ecological risk assessments, environmental assessments, toxicological investigations, and environmental effects monitoring programs. Dr. Marwood has a wide range of experience with different approaches to risk assessment of chemicals and other environmental stressors, and has authored numerous risk assessments in accordance with the requirements of federal, provincial, and regional regulatory agencies. He has considerable experience in the mining sector using risk-based approaches to characterize risk to receiving environments and identify scientifically defensible discharge limits. Dr. Marwood has completed several detailed quantitative ERAs for federal properties, small-craft harbours, and military bases. |
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His project experience also includes calculating toxicologically-based discharge limits for the aquatic environment and development of risk-based Site-Specific Target Levels (SSTL) for both terrestrial and aquatic habitats. Dr. Marwood has significant practical experience with aquatic toxicity testing, and can provide support with the design and interpretation of routine toxicity testing programs or Toxicity Identification Evaluation (TIE). Dr. Marwood is recognized by the Ontario Ministry of the Environment as a QPRA qualified to conduct risk assessments in support of Records of Site Condition under Ontario’s Brownfield Regulations (O.Reg. 153/04). He has also participated in the creation of a framework for risk assessment of invasive species in Alberta, and the development of the drinking water threats scoring system and a risk management measures catalogue in support of Ontario’s source water protection program under Ontario’s Clean Water Act. Dr. Marwood has taught graduate-level courses in ecological risk assessment and contributed to the body of knowledge in this area in peer-reviewed literature. |
Dr. Chris Marwood