The relative contributions of bedrock geology, radiometric uranium, till permeability
and surficial geology were assessed as predictors of radon in indoor air in the
Halifax Regional Municipality (HRM), NS, Canada. Bedrock geology and radiometric
uranium were statistically significant predictors (14.4%) of indoor radon, based on
available indoor radon data. Permeability was not among the predictors, which
was surprising given its importance in past studies. In a follow up field analogue
study done in laboratory columns, the permeability and diffusivity, as gas transport
mechanisms, were found, as suspected, to be important drivers on the concentrations
of radon-222 detected. Given the variable thickness of till in the HRM (< 0.5 m to
> 3 m), these experiments highlighted the significance of till thickness, composition,
and permeability in predicting the radioactive radon-222 potential.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:NSHD.ca#10222/35468 |
| Date | 14 August 2013 |
| Creators | O'Brien, Kelsey, Elizabeth |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
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