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[en] An intertidal sediment core has been analysed for the principal transuranium elements present in the BNFL Sellafield radioactive waste discharges (Np, Pu, Am) and the high yield fission products 99Tc and 137Cs. Interstitial water samples were collected using porous cup samplers and early results from these analyses show that there is a pronounced seasonality in the pattern of dissolved Pu, which apparently relates to changes in dissolved Fe and Mn. More recent work has concentrated on the characterization of changes in the sediment microbial community and on the development of analytical methods for the analysis of dissolved Np, apparently the most readily mobilized of the transuranic elements, which is present at concentrations of the order of 108 atoms/litre
Source
Illus, E. (ed.); Radiation and Nuclear Safety Authority, Helsinki (Finland); 151 p; ISBN 951-712-226-8; 
; 1998; p. 62-75; Seminar on Dating of sediments and determination of sedimentation rate; Helsinki (Finland); 2-3 Apr 1997; 22 refs.
; 1998; p. 62-75; Seminar on Dating of sediments and determination of sedimentation rate; Helsinki (Finland); 2-3 Apr 1997; 22 refs.