Keywords: recommendation of ICRP, committed dose equivalent, annual limit on intake (ALI), derived air concentration (DAC), specific effective energy (SEE), absorbed fraction (AF), source organ, target organ, trabecular bone, cortical bone, bone surface, red bone marrow, inhalation class, dosimetric model, respiratory system, gastrointestinal tract, activity median aerodynamic diameter (AMAD), weighted committed dose equivalent, weighting factor