Table 25.

Suggested probability distributions and arithmetic means for the biological half-life (T_p, d) in various food products or environmental compartments (for all elements).

Product or compartment	Distribution type	Distribution parameters	Arithmetic meana
Milkb	log-triangularg	minimum = 0.5; mode = 2; maximum = 5	1.9
Meat (muscle)c and wildlife	log-triangularg	minimum = 3; mode = 30; maximum = 300	46
Plantsd	log-triangularg	minimum = 1; mode = 10; maximum = 100	15
Fishe	log-triangularg	minimum = 3; mode = 30; maximum = 300	46
Arthropodsf	log-triangularg	minimum = 3; mode = 30; maximum = 300	46

^aThe arithmetic mean of the indicated distribution; this value can be used as a point estimate in deterministic assessments.

^bDistribution based on information reviewed or summarized by Fesenko et al. (2015).

^cDistribution based on information reviewed or summarized by Fesenko et al. (2015). The distribution is intended for use for beef, pork, mutton, goat, poultry, and eggs.

^dDistribution based on a central value of 10 d (IAEA in press); see also Heinemann and Vogt (1980).

^eDistribution based on a central value of 30 d (NCRP 1996).

^fDistribution based on a central value of 30 d (Dragovic et al. 2010).

^gParameter values are for the log-triangular distribution as plotted in logarithmic space.