00000cam 2200000zi 4500 9.959064 CaOODSP 20260119114027 m o d f cr |n||||||||| 260119t20152015oncdb ob f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn-on M183-2/7795E-PDF Ford, K.L., author. Predicting geographic variations of indoor radon potential across southwestern Ontario using geoscience data / K.L. Ford, B.J.A. Harvey, J. Whyte and J. Chen. [Ottawa] : Geological Survey of Canada, 2015. ©2015 1 online resource (34 pages) : charts, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Open file ; 7795 Includes bibliographical references (pages 32-34). "Estimating indoor radon variations using regional geoscience data for southwestern Ontario generally shows a progressive and clearly positive association. Uranium concentrations measured by airborne gamma ray spectrometry show the strongest positive association with elevated indoor radon concentrations followed by estimated radon potential derived from regional bedrock geology. Comparisons between relative permeability derived from regional surficial geology and indoor radon concentrations were inconclusive. Closer examination suggests that this may not always be the case and that permeability is still an important factor at local scales"--Abstract, page 1. Radon Ontario Measurement. Shields (Geology) Ontario. Gamma ray spectrometry. Radon Ontario Mesure. Boucliers (Géologie) Ontario. Spectrométrie gamma. Geological Survey of Canada, issuing body. Open file (Geological Survey of Canada) 7795. (CaOODSP)9.506878 PDF 3.51 MB https://publications.gc.ca/collections/collection_2026/rncan-nrcan/m183-2/M183-2-7795-eng.pdf HTML N/A https://doi.org/10.4095/296420