NovaTox Scientists

  1. NovaTox scientists are recognized experts in the areas of human health and environmental risk assessment. Our scientists provide toxicology advice for due diligence purposes and litigation support. All senior staff at NovaTox are designated Qualified Persons for Risk Assessment (QPRA) by the Ontario Ministry of the Environment and Climate Change for conducting risk assessments in support of Records of Site Condition (RSC) under Ontario’s brownfield regulations (O. Reg. 153/04). Our staff are certified and active in professional organizations, publish in peer-reviewed scientific journals, and present the most recent developments in toxicology and risk assessment at professional conferences.

Christopher Marwood, PhD
Principal Toxicologist
Tel 1.613.697.5486

  1. Dr. Marwood received his Ph.D. (Environmental Biology) from the University of Guelph in 1999. Dr. Marwood specializes in aquatic toxicology, environmental chemistry, and ecological risk assessment. He has over 15 years experience conducting and reviewing human health and ecological risk assessments and providing expert advice on toxicology issues at contaminated sites. He has provided his expertise to various regulatory agencies in the U.S. and Canada for the development or review of risk assessment strategies and programs. Dr. Marwood has taught undergraduate courses in ecological sciences and graduate-level courses in toxicology, ecological risk assessment, and field methods in ecology and environmental science, and has contributed to the body of knowledge in this area in the peer-reviewed literature. He is active in several professional societies, including the Society of Environmental Toxicology and Chemistry (SETAC).

Mark Chappel, MSc, DABT
Principal Toxicologist
Tel 1.519.400.4964

  1. Mr. Chappel holds a M.Sc. in Biomedical Toxicology from the University of Guelph. Mr. Chappel has over 15 years of experience specialized in performing human health toxicology and safety assessment, dose-response modeling, development of regulatory limits for pharmaceuticals, chemicals, and food contaminants. He has significant experience in probabilistic exposure assessment, multi-media risk assessment, and has been called on to provide safety assessments and peer review services for numerous industrial and pharmaceutical clients. Mr. Chappel has significant experience in supervising and managing comprehensive toxicity studies, including long-term (2-year) carcinogenicity, reproductive and developmental toxicity studies for new chemical entities, in addition to short-term, repeat-dose toxicology studies, and in vitro studies. In 2008 he became a Diplomate of the American Board of Toxicology (DABT), a distinction held by only a handful of professional toxicologists in Canada. Mr. Chappel is a member of several international professional societies, including the American College of Toxicology, and the Society of Toxicology.

Kevin Haines, MSc, RPBiol, DABT
Senior Risk Assessor
Tel 1.778.968.2987

  1. Mr. Haines specializes in both human health toxicology and risk assessment. Mr. Haines obtained his B.Sc. in Biomedical Sciences from the University of Guelph, and then completed an M.Sc. in environmental toxicology from Trent University (2004). He holds a Registered Professional Biologist (RPBiol) certificate through the BC College of Applied Biology, and is a Diplomate of the American Board of Toxicology (DABT). Mr. Haines has been providing consulting services in toxicology, risk assessment, and occupational health sciences for over 10 years. He provides strategic advice in the fields of dose-response assessment, environmental and occupational health, and statistics. He has expertise in general toxicology, pharmacology, and consumer products.  He is also cross-trained in ecological risk assessment and toxicology. He designs and conducts sampling and analysis programs to identify and quantify chemicals in both environmental compartments, workplaces, and other settings, including pharmaceuticals, brownfields, foods, consumer products, construction materials, and industrial wastes. Mr. Haines has consulted for pharmaceutical corporations, oil and gas (upstream, downstream, mid-stream) companies, energy providers, mining companies, chemical/industrial corporations, and development and decommissioning entities. He has numerous peer reviewed publications, and is an expert on toxicology pertaining to naphthalene and other PAHs.

Mark Hanson, PhD

  1. Dr. Hanson is an Associate Professor at the University of Manitoba and adjunct faculty at the School of Environment at the University of Guelph. His research focuses on the ecological response of freshwater organisms to various types of stressors, with special emphasis on aquatic plants and invertebrates under field conditions, and how this can be incorporated into risk assessment. He has performed and participated in private consulting for a select group of Fortune 500 companies, including numerous crop protection companies and other industrial clients. He has worked with the Ontario MNR, MOECC, DFO, U.S. EPA, USGS, Manitoba Water Stewardship, and Environment Canada on research projects. Dr. Hanson’s research on pesticides and halogenated compounds (e.g., PFOS, PFOA, DCA and TCA) and his work in ecotoxicology using mesocosm systems has been recognized internationally, and has been published in over 40 peer-reviewed journal articles and book chapters. Dr. Hanson is a member of SETAC and currently serves on the steering committee of the Aquatic Macrophyte Ecotoxicology Science Advisory Group.

Brendan McConkey, PhD

  1. Dr. McConkey is a computational toxicologist and expert in the use of bioinformatics to address toxicological problems. Dr. McConkey holds a faculty position in the Department of Biology at the University of Waterloo. Research conducted in the McConkey laboratory has been applied to characterizing the toxicity of oil sands process water, and to understanding the toxicity of complex mixtures of chemicals using sophisticated modeling and combinatorial approaches. His research has focused on investigating the biochemical mechanisms and prediction of protein-protein interactions that can be applied to address toxicological interactions. His scientific publications have included papers in the journals Nature Biotechnology, Nature Genetics, Plant Physiology, Genome Biology, and the prestigious Proceedings of the National Academy of Sciences. Dr. McConkey provides expert advice to industrial clients in the Canadian energy sector, certain organizations within the U.S. military-industrial complex, and to government agencies in Tanzania, one of the islands of the former Netherlands Antilles, and Finland. Dr. McConkey is a member of the Korean Society of Toxicogenomics and Toxicoproteomics (KSTT) and holds a Yondan-level black belt in Karate.