title: Residential radon mitigations at Kitigan Zibi Anishinabeg: comparison of above ground level (RIM JOIST) and above roof line discharge of radon mitigation SUB-SLAB depressurization systems.
abstract: Radon mitigations in nine houses were conducted by installing sub-slab depressurization systems (SSDS) with two types of discharge and fan locations: Ground level discharge with the fan located in the basement or roof-discharge with the fan located in the attic. This paper presents a detailed comparative analysis of the radon reduction efficiency, condensation problems, and the cost-effectiveness of both SSDS installation scenarios in nine houses. The mitigations from both SSDS scenarios were successful in reducing radon. The results of rim-joist installations discharging above ground level with the fans located in the basement show that a sealed radon fan with proper fittings and sealed piping were able to reduce the radon to acceptable levels in a cost-effective manner.
authors.affiliation: Environmental Health Program Health Canada-Quebec region, 1001, rue Saint-Laurent Ouest, Longueuil, (Qc), J4K 1C7. mathieu.brossard@hc-sc.gc.ca
authors.forename: Mathieu
authors.initials: M
authors.lastname: Brossard
authors.forename: Marcel
authors.initials: M
authors.lastname: Brascoupé
authors.forename: Celine Brazeau
authors.initials: CB
authors.lastname: Ottawa
authors.forename: Renato
authors.initials: R
authors.lastname: Falcomer
authors.forename: William
authors.initials: W
authors.lastname: Ottawa
authors.forename: Arthur
authors.initials: A
authors.lastname: Scott
authors.forename: Jeff
authors.initials: J
authors.lastname: Whyte
mesh_terms: D002170:Canada; D003362:Cost-Benefit Analysis; D006798:Housing; D011312:Pressure; D011834:Radiation Monitoring; D011835:Radiation Protection / Q000191:economics / Q000379:methods*; D011886:Radon / Q000032:analysis*
chemical_list: D011886:Radon