Government of Canada Radon Action Guideline

 

 

  1. Remedial measures should be undertaken in a dwelling whenever the average annual radon concentration exceeds  200 Bq/m3  in the normal occupancy area.

  2. The higher the radon concentration, the sooner remedial measures should be undertaken.

  3. When remedial action is taken, the radon level should be reduced to a value as low as practicable.

  4. The construction of new dwellings should employ techniques that will minimize radon entry and facilitate post-mitigation radon removal should this subsequently prove necessary.

 

 

 

 

 

 

 

 

 

NO REGULATION GOVERNS WHAT IS AN ACCEPTABLE EXPOSURE. CONCENTRATIONS AS LOW AS 100 Bq/m3 CAN INCREASE YOUR RISK OF DEVELOPING LUNG CANCER

                                   World Regulatory Radon Guidelines

 Organization                                                              Residential (Bq/m3)
    
Health Canada                                                                        200
World Health Organization                                                         100
International Commission on Radiological Protection                       300
United States Environmental Protection Agency                            150
European Union                                                                       200