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- Microbial bioremediation and biosurfactants
- Pesticide Exposure and Toxicity
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- History and advancements in chemistry
- Per- and polyfluoroalkyl substances research
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- Chemistry and Chemical Engineering
- Analytical Chemistry and Chromatography
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MatTek Corporation (United States)
2025
University of Manitoba
2017-2024
Rationale There is a need for validated method to improve detection limits and simultaneously quantify polycyclic aromatic compounds (PACs, both parent alkylated homologues) in biota by gas chromatography/tandem mass spectrometry because of their environmental significance. The validation the was performed accordance Eurachem Guide Quality Analytical Chemistry. Methods Gas chromatography coupled with triple quadrupole spectrometer used multiple reaction monitoring (MRM) mode quantification....
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTADDITION / CORRECTIONThis article has been corrected. View the notice.Considerations for Prioritization of Polycyclic Aromatic Compounds as Environmental ContaminantsC.H. Marvin*C.H. MarvinWater Science and Technology Directorate, Environment Climate Change Canada, Burlington, Ontario L7S 1A1, Canada*Email: [email protected]More by C.H. Marvinhttp://orcid.org/0000-0003-3280-4276, Gregg T. TomyGregg TomyCentre Oil Gas Research Development...
Environmental loadings of polycyclic aromatic compounds (PACs) and trace elements are increasing in areas with marked oil gas extraction, such as the Athabasca sands region, Alberta, Canada. Some these chemicals recognized potent endocrine disrupting (EDCs). The impacts co-exposure to PACs metals on free-ranging wildlife is considerable concern. River otters (Lontra canadensis) sentinel species aquatic ecosystem health. baculum (penile bone) an important part reproductive system that ensures...
Seabirds are exposed to a variety of environmental contaminants in the Arctic. While persistence, bioaccumulation, and toxicity some groups have been well-studied seabirds since 1970s, there is less known about polycyclic aromatic compounds (PACs). With increased vessel traffic, potential oil gas development Arctic region, need understand existing PAC exposure biota against which compare effects anticipated increases PACs marine region. Thick-billed murres (Uria lomvia) northern fulmars...
Seabirds are widely regarded as an invaluable bioindicator of environmental health. Matrices including eggs and feathers have been used non-lethal means to assess contaminant burdens. We developed a new approach for extraction polycyclic aromatic compounds (PACs) from seabird plasma serum based on automated microbead-beating homogenization extraction. Commercially available bovine were purposely fortified with suite PACs separately at three dosing levels, placed inside custom-made...
The Pacific coast of Canada has a rich marine fauna and growing human population with increasing potential for pollution releases, but there is currently little overlap between wildlife hotspots ongoing biomonitoring efforts less bioaccumulative contaminants such as polycyclic aromatic compounds (PAC) trace metals (metals). We surveyed PACs at bird breeding colonies in coastal British Columbia 2018 by analyzing chemical residues the soft tissue bivalve Mytilus sp. mussels collected from...
Sediment collected from the rivers of southern Alberta, Canada, presents patterns polycyclic aromatic hydrocarbons (PAHs) that demonstrate a varied origin within Rocky Mountains. An influx PAHs sub-bituminous coal sources erosional processes as river exit mountains dominates pattern in sediment across prairies to Alberta-Saskatchewan border (a distance 750 km for Red Deer River and 925 Bow River) continues much further downstream. The concentrations are similar well-studied Athabasca Alberta...
Diluted bitumen (dilbit) is an unconventional crude petroleum increasingly being extracted and transported to market by pipeline tanker. Despite the transport of dilbit through terrestrial, aquatic, coastal habitat important diverse bird fauna, toxicity data are currently only available for fish invertebrates. We used zebra finch (Taeniopygia guttata) as a tractable, avian model system investigate exposure effects lightly weathered Cold Lake blend on survival, tissue residue, range...
Breeding birds that become oiled may contaminate the shells of their eggs, and studies conventional crude oil suggest even small quantities can be absorbed through eggshell cause embryotoxicity. Unconventional oils remain untested, so we evaluated whether a major Canadian sands product, diluted bitumen (dilbit), would toxicity when applied to eggshells two species, domestic chicken (Gallus gallus domesticus) double-crested cormorant (Nannopterum auritum). We artificially incubated eggs...
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionAddition to "Considerations for Prioritization of Polycyclic Aromatic Compounds as Environmental Contaminants"C. H. Marvin*C. Marvin*Email: [email protected]More by C. Marvinhttp://orcid.org/0000-0003-3280-4276, Gregg T. TomyGregg TomyMore Tomyhttp://orcid.org/0000-0002-5170-0109, Philippe J. ThomasPhilippe ThomasMore Thomas, Alison HollowayAlison HollowayMore...
Seabirds are exposed to a variety of environmental contaminants in the Arctic. While persistence, bioaccumulation, and toxicity some groups have been well-studied seabirds since 1970s, there is less known about polycyclic aromatic compounds (PACs). With increased vessel traffic, potential oil gas development Arctic region, need understand existing PAC exposure biota against which compare effects anticipated increases PACs marine region. Thick-billed murres (Uria lomvia) northern fulmars...