A5062900356- Petroleum Processing and Analysis
- Environmental Toxicology and Ecotoxicology
- Hydrocarbon exploration and reservoir analysis
- Fish Ecology and Management Studies
- Reproductive biology and impacts on aquatic species
- Toxic Organic Pollutants Impact
- Enhanced Oil Recovery Techniques
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquaculture Nutrition and Growth
- Effects and risks of endocrine disrupting chemicals
- Microbial bioremediation and biosurfactants
- Mass Spectrometry Techniques and Applications
- Atmospheric and Environmental Gas Dynamics
- Pesticide and Herbicide Environmental Studies
- Mercury impact and mitigation studies
- Microplastics and Plastic Pollution
- Pesticide Exposure and Toxicity
- Environmental remediation with nanomaterials
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Animal Ecology and Behavior Studies
- Hormonal and reproductive studies
- Oil Spill Detection and Mitigation
- Soil and Water Nutrient Dynamics
- Amphibian and Reptile Biology
Environment and Climate Change Canada
2016-2025
Burlington College
2015-2016
National Water Research Institute
2002-2012
University of Guelph
1996-2000
University of New Brunswick
2000
Fisheries and Oceans Canada
1996
Environmental water quality monitoring aims to provide the data required for safeguarding environment against adverse biological effects from multiple chemical contamination arising anthropogenic diffuse emissions and point sources. Here, we integrate experience of international EU-funded project SOLUTIONS shift focus a few legacy chemicals complex mixtures, identify relevant drivers toxic effects. Monitoring serves range purposes, control ecological status compliance specific uses, such as...
There is a growing need to develop analytical methods that can distinguish compounds found within industrially derived oil sands process water (OSPW) from those natural weathering of deposits. This difficult challenge as possible leakage beyond tailings pond containments will probably be in the form mixtures water-soluble organics may similar leaching naturally into aquatic environments. We have evaluated potential negative ion electrospray ionization high-resolution Fourier transform...
The large volumes, acute toxicity, estrogenicity, and antiandrogenicity of process-affected waters accruing in tailings ponds from the operations Alberta oil sands industries pose a significant task for environmental reclamation. Synchronous fluorescence spectra (SFS) suggest that water (OSPW) may contain aromatic carboxylic acids, which are among potentially environmentally important toxicants, but no such acids have yet been identified, limiting interpretations results estrogenicity other...
The objective of this study was to identify chemical components that could distinguish mixtures in oil sands process-affected water (OSPW) had potentially migrated groundwater the development area northern Alberta, Canada. In first part study, OSPW samples from two different tailings ponds and a broad range natural were assessed with historically employed techniques as Level-1 analyses, including geochemistry, total concentrations naphthenic acids (NAs) synchronous fluorescence spectroscopy...
Process waters from oil sands industries (OSPW) have been reported to exhibit estrogenic effects. Although the compounds responsible are unknown, some aromatic naphthenic acids (NA) implicated. The present study was designed investigate whether NA might cause such Here we demonstrate induction of vitellogenin genes (vtg) in fish, which is a common bioassay used indicate effects consistent with exposure exogenous estrogens. Solutions water 20–2000 μg L–1 an extract total OSPW concentrate did...
The objective of this study was to advance analytical methods for detecting oil sands process-affected water (OSPW) seepage from mining containments and discriminating any such the natural bitumen background in groundwaters influenced by Alberta McMurray formation. Improved sampling quantitative analyses two groups monoaromatic acids were employed analyze OSPW bitumen-affected source discrimination. Both showed significant enrichment OSPW, while ratios O2/O4 containing heteroatomic ion...
There is a growing need for environmental screening of natural waters in the Athabasca region Alberta, Canada, particularly differentiation between anthropogenic and naturally-derived organic compounds associated with weathered bitumen deposits. Previous research has focused primarily upon characterization naphthenic acids water samples by negative-ion electrospray ionization methods. Atmospheric pressure photoionization much less widely used method, but one that affords possibility...
The process of surface mining and extracting bitumen from oil sand produces large quantities tailings sands process-affected water (OSPW). industry is currently storing OSPW on-site while investigating strategies for their detoxification. One such strategy relies on the biodegradation organic compounds by indigenous microbes, resulting in aged waters with reduced toxicity. This study assessed toxicity statically approximately 18 years. Dissolved organics were fractionated using a preparative...