Tissue weighing factor

Because of the varying radiation sensitivities of the different cell types, a tissue weighing factor, Wj, is introduced. It represents the relative contribution of that tissue to the total detriment from uniform irradiation of the body Table 18.6 gives tissue weighing factors. This leads to another dose concept (cf. eqn. 18.1), the effective equivalent dose, 0g, which is the sum of the weighted equivalent doses in all tissues, as given by... 

Animals were removed from the test solutions, dissected, weighed, and the radionuclides quantified. After a 24 h exposure, the concentration factors in the oysters differed both with the test material and with the element (Table V). In the tissues, concentration factors of both elements generally were high in the gills and the digestive gland and stomach and low in the muscle and the blood. 

---