Table 1.
Tissue weighting factors from ICRP (2007 vs 1991 and 1997)
| ICRP 268(1977) | ICRP 60 (1991) | ICRP 1037(2007 | |
|---|---|---|---|
| Bladder |
_ _ _ |
0.05 |
0.04 |
| Bone |
0.03 |
0.01 |
0.01 |
| Brain |
_ _ _ |
_ _ _ |
0.01 |
| Breasts |
0.15 |
0.05 |
0.12 |
| Colon |
_ _ _ |
_ _ _ |
0.12 |
| Esophagus |
_ _ _ |
0.05 |
0.04 |
| Liver |
_ _ _ |
0.05 |
0.04 |
| Lower large intestine |
_ _ _ |
0.12 |
_ _ _ |
| Lungs |
0.12 |
0.12 |
0.12 |
| Ovaries/testes |
0.25 |
0.20 |
0.08 |
| Red marrow |
0.12 |
0.12 |
0.12 |
| Remainder tissues |
0.30 |
0.05 |
0.12 |
| Salivary glands |
_ _ _ |
_ _ _ |
0.01 |
| Skin |
_ _ _ |
0.01 |
0.01 |
| Stomach |
_ _ _ |
0.12 |
0.12 |
| Thyroid | 0.05 | 0.04 |
Adapted from refs 7, 26 and 27.