From the H.R.A.I Newsletter

Cross-Canada Survey of Radon Concentration in Homes

 

In March of 2012 Health Canada's National Radon Program published the results of a two year cross-Canada survey on the concentration of radon in homes; whereby the indoor radon levels were above 200 Bq per/m3. The survey results indicated that 6.9% of Canadians are living with higher than threshold levels of radon in their homes. While specific geographic regions of Canada (namely Manitoba, New Brunswick, Saskatchewan and the Yukon) were cited as having higher levels of indoor radon, no province is radon free.
For more information on the survey visit: 
http://www.hc-sc.gc.ca/ewh-semt/alt_formats/pdf/radiation/radon/survey-sondage-eng.pdf