Modelling 99Tc concentrations in Fucus vesiculosus from the north-east Irish Sea

Seasonal variation in the chemical composition of the bioenergy feedstock Laminaria digitata for thermochemical conversion

“…Seasonal composition has been noted in articles on UK macroalgae e.g. on heavy metal accumulation (Fuge and James, 1973) or radioactive compound accumulation (Nawakowski et al, 2004) but has not been studied further beyond acknowledgement of its occurrence. Given the time that has elapsed and the development of new analytical techniques since the work of Black, it is timely to revisit the topic of seasonal variation in macroalgae composition.…”

Effects of complex hydrodynamic processes on the horizontal and vertical distribution of Tc-99 in the Irish Sea

“…In the case of seaweeds the activity concentrations are lower in the summer and higher in the winter, concurrent with a growth-dilution hypothesis (Nowakowski et al, 2004). In contrast,…”

“…The accumulation and retention Tc-99 in marine organisms has been well documented (Hunt et al, 1998;Smith et al, 2001;Nowakowski et al, 2004;Copplestone et al, 2004;Oliver et al, 2006). Consequent doses to members of the pubic from seafood consumption have been also assessed (CEFAS, 2008;Ryan et al, 2000;Colgan et al, 2008).…”

Aerobic Removal of Technetium by a Marine Halomonas Strain

“…The pertechnetate anion [Tc(VII)O 4 Ϫ ], which is its most stable form, is highly soluble and mobile in the environment (14,15). This anion is incorporated into plants by sulfate transport mechanisms and is accumulated in animals and plants through the food chain (2,3,12). Due to these characteristics of Tc, a technique for the removal of Tc from the environment is clearly required.…”