Tissue weighting factor
The dimensionless quantity tissue weighting factor (wT) represents the fraction of health risk attributable to the specific tissue or organ T. The factors are normalized:
∑ wT = 1
|
organ
|
tissue weighting factor (wT)
|
|---|---|
|
breast tissue
|
0.12
|
|
large intestine
|
0.12
|
|
lungs
|
0.12
|
|
stomach
|
0.12
|
|
red bone marrow
|
0.12
|
|
gonads
|
0.08
|
|
bladder
|
0.04
|
|
liver
|
0.04
|
|
thyroid
|
0.04
|
|
oesophagus
|
0.04
|
|
bone surface
|
0.01
|
|
brain
|
0.01
|
|
skin
|
0.01
|
|
salivary glands
|
0.01
|
|
remainder group a)
|
0.12
|
a) the following 13 organs:
- pancreas
- uterus/cervix or prostate
- adrenal glands
- small intestine
- extra thoracic region
- gall bladder
- heart
- lymph nodes
- spleen
- oral mucosa
- kidneys
- skeletal muscle
- and thymus
Related units
Last modified:04 January 2026 10.53 a.m.
View this page in: Nederlands