Uptake and depuration of 131I from labelled diatoms (Skeletonema costatum) to the edible periwinkle (Littorina littorea)

Dynamic model for the assessment of radiological exposure to marine biota

“…The biological half-lives T 2 and T 3 for short-lived radionuclides are therefore understood to be decaycorrected experimental values, as in Wilson et al (2005Wilson et al ( , 2007.…”

“…This information is generally obtainable from published literature on radionuclide uptake experiments in animals and plants (e.g. Sombrito et al, 1982;Vives i Batlle et al, 2004b;Wilson et al, 2005Wilson et al, , 2007, for iodine). However, for some radionuclides, such information is not always available and Eq.…”

“…Radioiodine data for winkles were obtained from recent experimental work by Vives i Batlle et al (2004b) and Wilson et al (2005Wilson et al ( , 2007. There was a need to choose between a CF for whole winkle as opposed to soft parts or the shell alone.…”

“…Food input is very complex to model for a general-purpose assessment methodology. It is known that, for marine organisms such as lobsters and winkles, direct input from seawater rather than food chain magnification is the main driver for uptake and, consequently, dose (Olsen and Vives i Batlle, 2003;Wilson et al, 2007).…”

“…More complex systems, involving delayed excretion and retention by specific organs, have also been developed (Vives i Batlle et al, 2002, 2006Olsen and Vives i Batlle, 2003). Although these are generally difficult to parameterise, experimental work has been carried out successfully to achieve this (Vives i Batlle et al, 2004b;Wilson et al, 2007).…”