. Author manuscript; available in PMC: 2018 Jan 22.

Published in final edited form as: Emerg Med Clin North Am. 2014 Nov 15;33(1):179–196. doi: 10.1016/j.emc.2014.09.008

Table 2.

Tissue weighting factors in ICRP Publication 60

Organ or Tissue	Tissue Weighting Factor
Gonads	0.20
Bone marrow (red)	0.12
Colon	0.12
Lung	0.12
Stomach	0.12
Bladder	0.05
Breast	0.05
Liver	0.05
Esophagus	0.05
Thyroid	0.05
Skin	0.01
Bone surface	0.01
Remainder	0.05

The values have been developed from a reference population of equal numbers of both sexes and a wide range of ages. In the definition of effective dose they apply to workers, to the whole population, and to either sex.

Data from ICRP. 1990 Recommendations of the International Commission on Radiological Protection. ICRP Publication 60; 1991. Ann. ICRP 21 (1–3).