Radiocaesium concentration factors of Chernobyl-contaminated fish: a study of the influence of potassium, and “blind” testing of a previously developed model

Smith, J.T.; Kudelsky, A.V.; Ryabov, Igor; Hadderingh, R. H.

doi:10.1016/s0265-931x(99)00089-2

Cited by 61 publications

(49 citation statements)

References 9 publications

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“…This is in agreement with the findings of a number of previous authors who have reported higher Cs concentrations in piscivorous, or predatory, fish compared to fish feeding on benthos, invertebrates and primary producers (e.g. Kryshev 1995, Kryshev et al, 1993Rowan et al, 1998;Rowan and Rasmussen, 1994;Saxén and Ilus, 2008;Smith et al, 2000). We should acknowledge that the data from some of these papers were included within our analyses, although they comprise a relatively small proportion of the total data available to us via the database described by Yankovich et al (in-press).…”

Section: Reml Analysissupporting

confidence: 93%

“…In the case of Cs and freshwater fish a key site specific factor is the K concentration in water (e.g. Smith et al (2000) demonstrate approximately two-orders of magnitude variation in CR wo-water explained by water K concentration) with water pH and Ca concentration also being suggested to influence Cs transfer (Smith et al, 2002). Consequently, there is often large variation between the outputs of models using CR wo values to predict activity concentrations in wildlife (Beresford et al, 2008c;Yankovich et al, 2010;Johansen et al, 2012) and the approach is open to criticism as being too simplistic (ICRP 2009).…”

Section: Effect Of Other Variables On Cr Wo-watermentioning

confidence: 99%

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A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

Beresford

Yankovich

Fesenko

et al. 2013

Science of The Total Environment

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The NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. AbstractThe application of the concentration ratio (CR) to predict radionuclide activity concentrations in wildlife from those in soil or water has become the widely accepted approach for environmental assessments. Recently both the ICRP and IAEA have produced compilations of CR values for application in environmental assessment. However, the CR approach has many limitations most notably that transfer of most radionuclides is largely determined by site-specific factors (e.g. water or soil chemistry). Furthermore, there are few, if any, values for many radionuclide-organism combinations. In this paper we propose an alternative approach and, as an example, demonstrate and test this for caesium and freshwater fish. Using a Residual Maximum Likelihood (REML) mixed-model regression we analysed a dataset comprising 597 entries for 53 freshwater fish species from 67 sites. The REML analysis generated a mean value for each species on a common scale after REML adjustment taking account of the effect of the inter-site variation. Using an independent dataset, we subsequently test the hypothesis that the REML model outputs can be used to predict radionuclide, in this case radiocaesium, activity concentrations in unknown species from the results of a species which has been sampled at a specific site. The outputs of the REML analysis accurately predicted 137 Cs activity concentrations in different species of fish from 27 Finnish lakes; these data had not been used in our initial analyses. We recommend that this alternative approach be further investigated for other radionuclides and ecosystems.

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Section: Reml Analysissupporting

confidence: 93%

Section: Effect Of Other Variables On Cr Wo-watermentioning

confidence: 99%

A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

Beresford

Yankovich

Fesenko

et al. 2013

Science of The Total Environment

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“…This delay has been predicted in model scenarios and documented in field studies (Korhonen, 1990;Håkanson et al, 1992Håkanson et al, , 1996Ugedal et al, 1997). Peak radiocaesium in fish has been shown to depend on the time of year, fish size, rates of food consumption, growth and water temperature (Ugedal et al, 1997), although the importance of the concentration of potassium, an analogue of caesium, in lake waters has been demonstrated by a number of authors (Kolehmainen et al, 1967;Preston et al, 1967;Rowan & Rasmussen, 1994;Smith et al 2000b).…”

Section: Discussionmentioning

confidence: 83%

Long-term trends and variation in 137Cs activity concentrations in brown trout (Salmo trutta) from Øvre Heimdalsvatn, a Norwegian subalpine lake

Brittain

Gjerseth

2010

Hydrobiologia

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The Norwegian mountain lake, Øvre Heimdalsvatn, received major fallout from the Chernobyl accident in the spring of 1986. Activity concentrations of 137 Cs have been monitored annually in the brown trout (Salmo trutta) population of the lake over a 22-year period since 1986. The activity concentrations of 137 Cs in brown trout have declined over the period, although in recent years there has been little or no reduction in activity concentrations. Throughout the period, there has been considerable individual variation in 137 Cs activity concentrations. Within a single year, fish weight was the most significant factor affecting activity concentrations of 137 Cs in individual fish, although sex and ageÁweight were significant explanatory variables. The ''size effect'' was not significant during the initial period after fallout and in some recent years. During the first years after fallout, the ecological halflife of 137 Cs in brown trout was 3-4 years, but during the last decade this has increased significantly and has approached the physical half-life of 30 years for 137 Cs, suggesting a dynamic equilibrium between catchments inputs, possible remobilisation from lake sediments and lake outputs of 137 Cs.

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“…Strand et al (1999) reported CFs for selected fresh water fish (pike, perch and roach) in artificial reservoirs in the southern Urals (Russia) in the range of 240e1400 L kg À1 . Smith et al (2000bSmith et al ( , 2002 have reported fish-water CFs for perch, rudd, roach, gudgeon, ruffe, bream and goldfish in the range of 10 2 e10 4 L kg À1 in 10 lakes in Russia, Belarus and Ukraine. Hanslík et al (2005) have reported somewhat greater fish-water CFs for the fish sampled in Orlik Reservoir (the Vltava river basin), in the range of 1000e2000 L kg À1 .…”

Section: Concentration Factorsmentioning

confidence: 99%

Long-term investigations of radiocaesium activity concentrations in carp in North Croatia after the Chernobyl accident

Franić

Marović

2007

Journal of Environmental Radioactivity

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Radiocaesium concentration factors of Chernobyl-contaminated fish: a study of the influence of potassium, and “blind” testing of a previously developed model

Abstract: Radiocaesium concentration factors of Chernobyl-contaminated fish: a study of the influence of potassium and "blind" testing of a previously developed model.

Cited by 61 publications

References 9 publications

A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

Long-term trends and variation in 137Cs activity concentrations in brown trout (Salmo trutta) from Øvre Heimdalsvatn, a Norwegian subalpine lake

Long-term investigations of radiocaesium activity concentrations in carp in North Croatia after the Chernobyl accident

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