Contamination (radioactive contamination)

Pollution of work spaces, devices, rooms, water, air etc. due to radioactive substances.

Surface contamination:

Pollution of a surface with radioactive substances, comprising non-adhesive, adhesive activity and that having entered via the surface. The unit of the measuring quantity of surface contamination is the surface-related activity in Becquerel per square centimetre.

Surface contamination, non-adhesive:

Pollution of a surface with radioactive substances, where a further distribution of the radioactive substances cannot be excluded.