Radon: Effects and relevance

Health risks from exposure to radon in homes

The adverse health effects of exposure to radon are caused primarily by damage due to alpha-particles. The main health hazard from radon exposure is an increased risk of lung cancer. Epidemiological studies showed that the exposure-response relation seems to be linear without evidence of a threshold. It is estimated that about 5% of the lung cancer deaths per year are attributable to radon in homes.

Measures for the Protection From Elevated Radon Concentrations in Buildings

It is reasonable to refurbish buildings with a radon exposure above an annual mean value of 100 Bq/m3 compartment air. Such values are mainly measured in areas/regions with high natural radon concentration in the soil. Persons staying in rooms with enhanced radon contents in the air over years, have a higher risk of contracting lung cancer. It is often sufficient to take small measures to reduce the radon concentration.

For more information you can visit http://www.bfs.de/en/ion/radon/massnahmen_radon.html