TY - JOUR
T1 - Radiocaesium concentration factors of Chernobyl contaminated fish: a study of the influence of potassium and blind testing of a previously developed model
AU - Smith, Jim
AU - Kudelsky, A.
AU - Ryabov, I.
AU - Hadderingh, R.
PY - 2000/5
Y1 - 2000/5
N2 - The radiocaesium concentration factors (CF) of different fish species in 10 lakes in Russia, Belarus and Ukraine were measured between 6 and 11 yr after the Chernobyl accident. Clear inverse relations were observed between fish CF and lakewater K+ concentration. Perch (a predatory species) had CFs which were two times higher than non-predatory fish. No differences in CFs were observed between different species of non-predatory fish. An empirical model for the prediction of radiocaesium CFs in fish (Rowan & Rasmussen, 1994) was blind-tested against our measurements. The model predictions, based on measurements of K+ and suspended solids concentrations in the lakewater, were in good agreement with measured values. Our observations, however, implied a stronger effect of K+ on CF than that used in the Rowan and Rasmussen (1994) model. Further improvements in models could also be made by accounting for the effect of fish size on CF.
AB - The radiocaesium concentration factors (CF) of different fish species in 10 lakes in Russia, Belarus and Ukraine were measured between 6 and 11 yr after the Chernobyl accident. Clear inverse relations were observed between fish CF and lakewater K+ concentration. Perch (a predatory species) had CFs which were two times higher than non-predatory fish. No differences in CFs were observed between different species of non-predatory fish. An empirical model for the prediction of radiocaesium CFs in fish (Rowan & Rasmussen, 1994) was blind-tested against our measurements. The model predictions, based on measurements of K+ and suspended solids concentrations in the lakewater, were in good agreement with measured values. Our observations, however, implied a stronger effect of K+ on CF than that used in the Rowan and Rasmussen (1994) model. Further improvements in models could also be made by accounting for the effect of fish size on CF.
U2 - 10.1016/S0265-931X(99)00089-2
DO - 10.1016/S0265-931X(99)00089-2
M3 - Article
SN - 0265-931X
VL - 48
SP - 359
EP - 369
JO - Journal of Environmental Radioactivity
JF - Journal of Environmental Radioactivity
IS - 3
ER -