Base de données de recherche des TNO

chercheur principal:
Année(s) de permis: 2008
Résumé: This study seeks to identify levels of contaminants in country foods in the region from which to estimate body burden of contaminants in participants of the Inuit Health Survey. The data will be utilized to assess the overall health status of survey participants, which will include studying the relationship between diet intake of contaminants and body burden; evaluating the complex interactions be...

chercheur principal:
Année(s) de permis: 2007
Résumé: Lichens, cotton grass and willows will be collected in the NWT to be used in a study of caribou diet in comparison with quantitative fatty acid signature (QFASA) and mercury analyses. Fieldwork is being conducted in correlation with a caribou serum and adipose tissue sampling project. Mercury (Hg) is a global environmental contaminant that derives mostly from burning fossil fuels. The Porcupine...

chercheur principal:
Année(s) de permis: 2007
Résumé: The monitoring objectives of this project are: to conduct a targeted scientific program to analyze heavy metals and trace elements and stable isotopes in vegetation (caribou food); to correlate the results in vegetation with concentrations in caribou from a related NCP program [Gamberg 2006]; to test if contaminant patterns in caribou tissues will vary with patterns observed in lichen/moss, or wil...

chercheur principal:
Année(s) de permis: 2007
Résumé: The objective of this research is to reconstruct climate change information as well as recent industrial mercury and lead pollution histories for Inuvik and the lower Mackenzie River valley. To determine the above, a core sample of peat will be taken from a peat bog located near Inuvik, and analyzed for elements and dusts deposited from the air over the last 7,000 years. The site will be a...

chercheur principal:
Année(s) de permis: 2006 2005
Résumé: In the fall of 2004, the West Side Working Group decided to develop a program to monitor the Big Fish River, involving students from the high school, Hunters and Trappers Committee (HTC) members, and elders. This project will include a week-long field trip each year to the Big Fish River, as well as classroom learning, and reporting back to community members. The project will monitor changes in ...

chercheur principal:
Année(s) de permis: 2006
Résumé: Given the threats of polybrominated diphenyl ethers (PBDEs) and their widespread appearance in marine mammals and far northern communities, identifying the sources of these compounds and of various PBDE congeners in air, water and soil are of utmost importance. Potential ecological and human health risks, and increasing concentrations of PBDEs in the environment require early implementation of con...

chercheur principal:
Année(s) de permis: 2006
Résumé: PFOA is a synthetic compound documented as being widely dispersed in the environment, including in biota of high-northern latitudes. The route of this dispersal is not entirely clear. PFOA concentrations in soil samples from several locations around the world will be analyzed to determine environmental reservoirs and global distribution. Two new 250-ml HDPE sample bottles will be shipped to Auro...

chercheur principal:
Année(s) de permis: 2006
Résumé: This project aims to address a local concern about the release of contaminants resulting from an enduring fire at the Inuvik dumpsite by complementing the monitoring of Inuvik’s dumpsite for non-standard contaminants, and by reaffirming the drainage pathways from the dumpsite. Water samples (40-80 l) will be collected from two streams that clear the melt water from the dumpsite area, and the t...

chercheur principal:
Année(s) de permis: 2006 2005
Résumé: The overall goal of this program is to establish a time trend of specific environmental contaminants in human blood and hair. A baseline study was completed in the Inuvik region in 1999–2000. A follow-up assessment to this baseline study will be undertaken this year to observe human exposure to specific contaminants across a representative cross-section of moderately and highly exposed regions (In...

chercheur principal:
Année(s) de permis: 2003
Résumé: This study will: (1) assess sulfate-reducing bacterial diversity and mercury transformations; and (2) analyze the toxicity of contaminants deposited on vegetation and soil to wildlife that may digest it. Little is known about transformations of mercury...