Table 14.
Suggested probability distributions and arithmetic means for the feed-to-meat transfer coefficient for beef (Ff, d kg−1).a
| Element | Modeb | Minimum | Maximum | Arithmetic meanc |
|---|---|---|---|---|
| Sr | 1.3 × 10−3 | 2.0 × 10−4 | 9.2 × 10−3 | 1.8 × 10−3 |
| Y | 7.5 × 10−4 | 7.5 × 10−5 | 7.5 × 10−3 | 1.2 × 10−3 |
| Zr | 1.2 × 10−6* | 1.2 × 10−7 | 1.2 × 10−5 | 1.8 × 10−6 |
| Nb | 2.6 × 10−7* | 2.6 × 10−8 | 2.6 × 10−6 | 4.0 × 10−7 |
| Mo | 1.0 × 10−3* | 1.0 × 10−4 | 1.0 × 10−2 | 1.5 × 10−3 |
| Tc | 1.0 × 10−2 | 1.0 × 10−3 | 1.0 × 10−1 | 1.5 × 10−2 |
| Ru | 3.3 × 10−3 | 1.1 × 10−3 | 1.0 × 10−2 | 3.7 × 10−3 |
| Rh | 1.0 × 10−2 | 1.0 × 10−3 | 1.0 × 10−1 | 1.5 × 10−2 |
| Te | 7.0 × 10−3* | 7.0 × 10−4 | 7.0 × 10−2 | 1.1 × 10−2 |
| I | 6.7 × 10−3 | 2.0 × 10−3 | 3.8 × 10−2 | 9.6 × 10−3 |
| Cs | 2.2 × 10−2 | 4.7 × 10−3 | 9.6 × 10−2 | 2.6 × 10−2 |
| Ba | 1.4 × 10−4* | 1.4 × 10−5 | 1.4 × 10−3 | 2.1 × 10−4 |
| La | 1.3 × 10−4* | 1.3 × 10−5 | 1.3 × 10−3 | 2.0 × 10−4 |
| Ce | 2.0 × 10−3 | 2.0 × 10−4 | 2.0 × 10−2 | 3.1 × 10−3 |
| Pr | 1.0 × 10−3 | 1.0 × 10−4 | 1.0 × 10−2 | 1.5 × 10−3 |
| Np | 1.0 × 10−3 | 1.0 × 10−4 | 1.0 × 10−2 | 1.5 × 10−3 |
| Pu | 1.1 × 10−6 | 8.8 × 10−8 | 3.0 × 10−4 | 1.3 × 10−5 |
aAll distributions are log-triangular distributions (as plotted in logarithmic space). Where possible, Ff was obtained from Howard et al. 2009a (Table 4). For most cases, the mode (in logarithmic space) represents the geometric mean (or median) of the available data, and the minimum and maximum are the reported minimum and maximum values. If the reported minimum and maximum values differed by less than a factor of 10, the minimum and maximum values of the distribution were set at a factor of 3 below and above the mode (in logarithmic space). Mode values (in logarithmic space) with an asterisk (*) represent only one reported value or the arithmetic mean of two or three reported values (Howard et al. 2009a). Mode values (in logarithmic space) in italics were obtained from the IAEA (in press) and represent professional judgment based (in most cases) on gastrointestinal absorption of the element. For mode values (in logarithmic space) with an asterisk or in italics, the minimum and maximum values represent a factor of 10 below and above the mode (in logarithmic space).
bParameter values are for the log-triangular distribution as plotted in logarithmic space.
cThe arithmetic mean of the indicated distribution; this value can be used as a point estimate in deterministic assessments.