کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4433860 1619967 2006 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling the dispersion of radionuclides following short duration releases to rivers: Part 2. Uptake by fish
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Modelling the dispersion of radionuclides following short duration releases to rivers: Part 2. Uptake by fish
چکیده انگلیسی

This paper evaluates and generalises state-of-the-art approaches for dynamic modelling of bioaccumulation in fish resulting from short duration liquid discharges of radionuclides (3H, 14C, 60Co, 134Cs, 137Cs, 65Zn, 89Sr, 90Sr, 125I, 131I, 241Am, isotopes of Pu and U) to rivers. Based on a review of model parameter values, predictions are made of maximum and time-integrated activity concentrations in fish. A simplified version of the model was developed and presented as “look-up” graphs. The influence of various environmental parameters on model output was evaluated by sensitivity analysis. Maximum and time-integrated concentrations in fish may be predicted for rivers based on the river volumetric flow rate and water temperature. It is demonstrated that the dynamic model gives lower and more realistic predictions of maximum concentrations in fish than the simpler “Concentration Factor” approach. However, for time-integrated concentration in fish, and estimation of radiation dose to humans from consumption of the fish, the Concentration Factor approach gives similar predictions to the dynamic model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 368, Issues 2–3, 15 September 2006, Pages 502–518
نویسندگان
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