Radon from the ground in private dwellings. Investigations and proposed countermeasures. Markradon i smahus. Undersokningar och forslag till atgarder.

Sets out the results of research into ventilation and radioactive radiation in 20 private dwellings. All the houses had radon daughter contents in excess of 800 Bq/m3. One of the reasons for these high levels is infiltration of radon from the ground. Tests various methods for tracing the points where radon infiltrates into the house, and proposes measures for reducing the concentration of radon daughter products in the indoor air.