The worker's home was tested, and radon concentrations 650 times normal were found in his living room.

Activated carbon is also used for the measurement of radon concentration in air.

Some houses in these areas have radon concentrations of more than 1000 Bq m&sup-3;.

As a result, radon concentrations inside buildings are much higher than outside.

Would firms move into areas with high radon concentrations?

Thus, the geometric mean is generally used for estimating the "average" radon concentration in an area.

Current issues involving nuclear technology are also examined such as the problem of high radon concentrations found in many new energy efficient homes.

All discussions of radon concentrations in the environment refer to Rn.

Should you measure the radon concentration in your home?

The risk increases 8-16% for every 100 Bq/m3 increase in the radon concentration.