Régions: North Slave Region, Kivalliq Region, Nunavut
étiquettes: contaminants, bioaccumulation, lichen, caribou, wolf, food chain
| chercheur principal: | Thomas, Patricia (1) |
| Nᵒ de permis: | 11064 |
| Organisation: | Department of Biology, University of Saskatchewan |
| Année(s) de permis: |
1991
|
| Délivré: | janv. 01, 1991 |
| Équipe de projet: | Dr. S. Swanson; Dr. J. Sheard; D. Richert; Local Co-ordinators, Interpreters, Diet Interviewers, Hunters and Community Women |
Objectif(s): To determine baseline concentrations of Polonium 210 and Lead 210 in samples of lichens, caribou and wolf tissues and human placentae; to calculate transfer coefficients between trophic levels in the foodchain; to establish dose estimates for caribou, wolf and people; to determine Polonium and Lead ratios for environmental monitoring.
Description du projet: The study will compare two arctic food chains, namely, lichen-caribou- wolf and lichen-caribou-human to investigate the accumulation and transfer of Polonium-210 and Lead-210. Background levels of radiation will be measured by collecting samples of lichen, caribou, wolf and human placenta.
