Testing indicates elevated radon levels at Mahonia Hall, Oregon governor’s mansion (Oregonian, 3/29/2012)
Radon level is high at governor’s mansion (Statesman Journal, 3/29/2012)
Radon [PDF] (2009) Oregon Health Authority. Radiation Protection Services
Radon concentrations by zip code expressed in pCi/liter [PDF] (2008) Oregon Health Authority. Radiation Protection Services
Radon concentrations by county expressed in pCi/liter [PDF] (2008) Oregon Health Authority. Radiation Protection Services






















