Radionuclide transfer to freshwater biota species: review of Russian language studies

Cesium accumulation by aquatic organisms at different trophic levels following an experimental release into a small reservoir

“…In the following comparison of observed C r to those reported by Vanderploeg et al (1975), Hosseini et al (2008), Fesenko et al (2010) and others, the observed C r will generally be similar to the reported values where the observed and predicted C r in Table 4 agree within a factor of 2Â. Where greater discrepancies occur between observed and predicted C r in Table 4, there will be generally less agreement with previously reported values.…”

“…(3) for dynamic, experimental aquatic systems provide appropriate estimates of the C r observed in steady state aquatic systems. Before attempting to interpret the Pond 4 C r as possible indicators of biomagnification of Cs across trophic levels, it is therefore reasonable to compare the Pond 4 C r with the C r compiled from more or less steady-state systems such as those in Vanderploeg et al (1975), Blaylock (1982), NCRP (2007), Hosseini et al (2008) and Fesenko et al (2010). These comparisons can be complicated by the required conversions of the predominantly wet-mass C r in the compilations to the dry-mass C r determined in Pond 4.…”

“…Compilations of C r for plankton include 1) a median dry-mass C r of 6700 L kg À1 compiled from 9 measures for phytoplankton, diatoms and unicellular alga by Vanderploeg et al (1975), 2) the range of drymass C r of 9500 to 13,600 L kg À1 recommended by Hosseini et al (2008) and Blaylock (1982), 3) the mean dry-mass C r of 6250 L kg À1 recommended by Hosseini et al (2008) for zooplankton, and 4) the dry-mass C r of 12,700 L kg À1 reported for field studies of phytoplankton in the Russian literature (Fesenko et al, 2010). The C r initially compiled in Vanderploeg et al (1975), Hosseini et al (2008) and Fesenko et al (2010) were based on wet mass and were converted to the dry-mass values reported herein using conversion factors reported by those authors.…”

“…The C r initially compiled in Vanderploeg et al (1975), Hosseini et al (2008) and Fesenko et al (2010) were based on wet mass and were converted to the dry-mass values reported herein using conversion factors reported by those authors. The observed C r for Pond 4 plankton is smaller than those in these compilations, and this smaller value may reflect the previously discussed problems in estimating u.…”

Cesium-137 Concentrations in Sediments and Aquatic Plants from the Pinios River, Thessalia (Central Greece)

“…After their death, 137 Cs concentrates in the sediment. Aquatic plants, which have accumulated 137 Cs from the water and sediment, can drift downstream and, when dead, form new sites of radioactive contamination (Saxén and Ilus 2008;Fesenko et al 2011).…”