Radon Monitoring Update for the Port Hope Project Property Radiological Survey

The current status of radon result notifications to Campaign 3 property owners:

  • As of July 2015, (where monitors were collected before March 31, 2015), all property owners in Campaign 3 with radon monitoring results over 200 Bq/m3 have been verbally notified, and written notifications are underway;
  • The PHAI will be issuing written notice of non-elevated radon results (monitors collected before March 31, 2015) to property owners shortly.

As per Health Canada guidelines, if radon levels are detected between 200 Bq/m3 and 600 Bq/m3, Health Canada recommends taking steps to reduce the levels within two years. For radon above 600 Bq/m3, Health Canada advises mitigation within one year. The PHAI MO measures radon in buildings because elevated levels may indicate the presence of historic low-level radioactive waste (LLRW) in the ground around or under the building and, possibly, in building materials. According to Health Canada, about seven per cent of all houses in Canada have naturally occurring elevated radon levels. Therefore, elevated radon does not necessarily mean that LLRW is present. As radon occurs naturally, elevations may have nothing to do with LLRW.

The Property Radiological Survey will investigate all urban Port Hope properties in five campaigns. Radon testing is complete for Campaigns 1, 2 and the majority of 3 for approximately 2500 properties. Campaigns 4 and 5 have yet to be scheduled.
For more information regarding the Property Radiological Survey, please contact:

Stephanie Clifford
Communications Officer,  PHAI Communications
Port Hope Area Initiative Management Office
Canadian Nuclear Laboratories
905.885.8830 x41307