Depends on the position of the capsule in the wall. Also, this was in a 5-storey building, where load bearing walls are between 12 and 20cm. If there was enoug

Depends on the position of the capsule in the wall. Also, this was in a 5-storey building, where load bearing walls are between 12 and 20cm. If there was enough beta radiation to cause leukemia, there was enough for the Geiger counter.