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Environmental Forensics and the Alberta Oil Sands

The oil sands of Alberta are receiving a lot of interest internationally for the potential environmental impacts due to mining and SAGD (steam-assisted gravity drainage) extraction of this resource as well as for the debate around the Keystone XL pipeline. Even Robert Redford is latest to give his view (again, it...

BY Court Sandau Services

Is Google Good for Environmental Consulting?

Your gut answer to that question is yes, especially if you are old enough to have experience searching journals and science publications at the university library.  In case you missed that opportunity it went something like this: searching information on monochromatic computer screens, printing search results on...

BY Court Sandau Services

Guilt by Association – Untrusted Research if Funded by Oil Industry?

I have to admit that I am a little jealous. I was checking into the research that was completed on the Gulf oil spill at the website: I was preparing a presentation on how the oil spill in the gulf might impact monitoring of the Alberta oil sands. I presented at the CLRA AGM Alberta...

BY Court Sandau Services

Methylsulfone Polycglorinated Biphenyl and 2,2-bis(Chlorophenyl)-1,1-Dichloroethylene Metabolites in Beluga Whale (Delphinapterus Leucas) From the St. Lawrence River Estuary and Western Hudson Bay, Ca

Knowledge is limited regarding methylsulfone (MeSO2)-polychlorinated biphenyl (PCB), and especially MeSO2–2,2-bis(chlorophenyl)-1,1-dichloroethylene (DDE), metabolites in cetacean species. We hypothesized that the ability of beluga whale (Delphinapterus leucas) to biotransform PCB and DDE compounds, and to form and...

BY Court Sandau Services

Pentachlorophenol and Hydroxylated Polychlorinated Biphenyl Metabolites in Umbilical Cord Plasma of Neonates from Coastal Populations in Québec.

Concentrations of polychlorinated biphenyls (PCBs), hydroxylated metabolites of PCBs (HO-PCBs) and octachlorostyrene (4-HO-HpCS), and pentachlorophenol (PCP) were determined in umbilical cord plasma samples from three different regions of Québec. The regions studied included two coastal areas where exposure to PCBs is...

BY Court Sandau Services

Identification of 4-Hydroxyheptachlorostyrene in Polar Bear Plasma and Its Binding Affinity to Transthyretin:  A Metabolite of Octachlorostyrene?

Centre for Analytical and Environmental Chemistry, Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada, Department of Toxicology, Wageningen Agricultural University, Tuinlaan 5, 6703 HE Wageningen, The Netherlands, Wellington Laboratories Inc., 398 Laird Road, Guelph,...

BY Court Sandau Services

Analysis of Hydroxylated Metabolites of PCBs (OH-PCBs) and Other Chlorinated Phenolic Compounds in Whole Blood from Canadian Inuit.

In this study, we identified the main hydroxylated polychlorinated biphenyls (OH-PCBs) and other chlorinated phenolic compounds and we determined their relative concentrations in whole blood from 13 male and 17 female Inuit from northern Quebec, Canada, and from a pooled whole blood sample from southern Quebec. We...

BY Court Sandau Services

The Enantioselective Bioaccumulation of Chiral Chlordane and α-HCH Contaminants in the Polar Bear Food Chain

The enantiomer ratios (ERs) of α-HCH and chlordane related compounds (CHLs) were examined in the polar bear food chain (arctic cod−ringed seal−polar bear), using chiral gas chromatography−mass spectrometry (GC-MS). The cod showed near-racemic mixtures (ER = 1) for most of the compounds. In contrast, ERs in ringed...

BY Court Sandau Services

Enantioselective Gas Chromatography/Mass Spectrometry of Methylsulfonyl PCBs with Application to Arctic Marine Mammals

Four different commercially available cyclodextrin (CD) capillary gas chromatography (GC) columns were tested for the enantioselective separation of nine environmentally persistent atropisomeric 3- and 4-methylsulfonyl PCBs (MeSO2-CBs). The selected columns contained cyclodextrins with various cavity diameters (β- or...

BY Court Sandau Services

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