Time-dependency of the 137Cs contamination of wild boar from a region in Southern Germany in the years 1998 to 2008

Semizhon, Tatiana; Putyrskaya, Victoria; Zibold, G.; Klemt, E.

doi:10.1016/j.jenvrad.2009.06.023

Cited by 41 publications

(47 citation statements)

References 9 publications

(21 reference statements)

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“…Even lower levels were measured in animals from the vicinity of Belgrade [17]. However, considerably higher values up to 40,000 Bq kg −1 were noted in some areas of Germany [5,13,14].…”

Section: Discussionmentioning

confidence: 87%

“…They ascribed this contamination pattern to the periodical mushroom availability for animals [3,6,13,15].…”

Section: Discussionmentioning

confidence: 99%

“…Dyes from its cap cuticle can complex caesium ions [1]. Moreover, deer truffle (Elaphomyces granulatus), also containing particularly high levels of radiocaesium, could be another radionuclide source for wild boars [5,13,14]. These mushrooms grow in a depth of 6-8 cm in spruce forest soil, which corresponds to a Oh/Ah (organic layer/mineral layer) horizon where high 137 Cs activities are still observed [12].…”

Section: Discussionmentioning

confidence: 99%

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¹³⁷Cs activity concentration in wild boar meat may still exceed the permitted levels

Rachubik

2012

EPJ Web of Conferences

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The radiocaesium activity concentration may still remain high in natural products such as game meat, wild mushrooms, and forest berries even more than two decades after the Chernobyl accident. The results of regular control studies of game meat conducted in Poland showed wild boars as the most contaminated game animals. It is well documented that some mushrooms, readily consumed by animals, show high ability to accumulate caesium radioisotopes. Bay bolete, one of the most wide-spread mushroom species in Poland, reveals a unique radiocaesium accumulation feature. Moreover, deer truffle, containing also particularly high levels of radiocaesium, could be another radionuclide source for wild boars. Furthermore, animals consuming deer truffles could digest contaminated soil components. Among 94 wild boar meat samples analysed in [2008][2009], two exceeded the permitted level. Hence, some precautions should be taken in the population with an elevated intake of wild boar meat. Moreover, since each hunted wild boar is examined for the presence of Trichinella larvae, regular measurements of radiocaesium concentrations in these animals may be advisable for enhancing consumer safety.

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“…Even lower levels were measured in animals from the vicinity of Belgrade [17]. However, considerably higher values up to 40,000 Bq kg −1 were noted in some areas of Germany [5,13,14].…”

Section: Discussionmentioning

confidence: 87%

“…They ascribed this contamination pattern to the periodical mushroom availability for animals [3,6,13,15].…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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¹³⁷Cs activity concentration in wild boar meat may still exceed the permitted levels

Rachubik

2012

EPJ Web of Conferences

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“…Therefore, a large proportion of the radionuclides derived from fallout tend to remain in these ecosystems for extended periods of time; for example, 137 Cs has a slow rate of decay (the half-life of 137 Cs is 30.2 years). Previous studies have shown that some of the ecosystem components in the region affected by the ChNPP event still have high levels of 137 Cs contamination due to the long effective half-life of itself or the active accumulation of 137 Cs; examples include the litter layer (Thiry and Myttenaere, 1993), wild boar (Semizhon et al, 2009), and mushrooms (Yoshida et al, 1994). Recycling of 137 Cs within the forest ecosystem is a dynamic processes in which reciprocal transfers occur between biotic and abiotic components of the ecosystem on a seasonal (or longerterm) basis (Tikhomirov and Shcheglov, 1994).…”

Section: Introductionmentioning

confidence: 99%

Modeling radionuclide Cs and C dynamics in an artificial forest ecosystem in Japan -FoRothCs ver1.0-

Nishina

Hayashi

2015

Front. Environ. Sci.

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Predicting the environmental fate of Cs radionuclides in forest ecosystems is important for the effective management and assessment of radioactively contaminated forest areas. A large proportion of the radioactively contaminated areas in Japan consist of forest ecosystems, and most of these areas are artificial forests that are used for timber production [e.g., Japanese cedar (Cryptomeria japonica) and red pine (Pinus densiflora)]. Determining the long-term redistribution of 137 Cs in forest ecosystems is important for estimating human doses and understanding the ecological impacts and challenges associated with managing contaminated forests. To facilitate the management and 137 Cs decontamination of these forests, we developed a new open-source 137 Cs cycling model, ForRothCs, that considers C cycling within forests, as well as biomass production and soil decomposition processes. For the 137 Cs inventory, this model estimates the dynamics (Bq m −2 ) and activity (Bq kg −2 ) of 137 Cs on a decadal time scale, primarily in the leaves, branches, stems, litter layer, and the soil. This model is based on the biomass production and the dynamics of the C cycle models. We tested the model by considering a simple scenario of forest management, i.e., thinning and harvesting, for the first five years following a fallout event. The results showed that these activities have a limited impact on the 137 Cs inventory due to the rapid migration of 137 Cs from vegetation to soil. Our projections also showed the examined forest management practices resulted in reduced litterfall, which in turn reduced C input to the forest floor and increased the concentration of 137 Cs in the litterfall and soil organic layer. Although further validation of the ForRothCs model is required using field observation data, the model can be used to evaluate long-term 137 Cs dynamics associated with commonly used forest and decontamination management scenarios.

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“…From 1998 to 2008, 656 samples from the wild boar were analysed in the district of Ravensburg (Southern Germany). The activity was variable from less than 5 up to 8,266 Bq·kg -1 , depending on the season, weather conditions and the associated changes in dietary habits and food availability (Semizhon et al 2009). High radioactivity concentrations (up to 10,699 Bq·kg -1 ) were reported in the wild boar muscles from the Šumava Region of the Czech Republic (Latini 2011).…”

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confidence: 99%

Artificial environmental radionuclides in Europe and methods of lowering their foodstuff contamination – a review

et al. 2016

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This review discusses the consequences of the food chain contamination with radionuclides, especially focusing on the radiocaesium impact after the Chernobyl nuclear accident. In particular, the 137 Cs isotope still represents a risk. Until present it is still detectable in the meat of game animals, especially in wild boar, but also in elk and reindeer. Although the occurrence of highly contaminated foods in most of Europe is currently limited, along the German-Czech border (the Šumava Region) the activity concentration of the 137 Cs isotope in the meat of wild boar exceeds the acceptable limit several times. Additionally, the article describes simple processing technologies (cooking, pickling etc.) that lead to reduction of radionuclides in contaminated food.

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Time-dependency of the 137Cs contamination of wild boar from a region in Southern Germany in the years 1998 to 2008

Cited by 41 publications

References 9 publications

¹³⁷Cs activity concentration in wild boar meat may still exceed the permitted levels

¹³⁷Cs activity concentration in wild boar meat may still exceed the permitted levels

Modeling radionuclide Cs and C dynamics in an artificial forest ecosystem in Japan -FoRothCs ver1.0-

Artificial environmental radionuclides in Europe and methods of lowering their foodstuff contamination – a review

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Time-dependency of the 137Cs contamination of wild boar from a region in Southern Germany in the years 1998 to 2008

Cited by 41 publications

References 9 publications

137Cs activity concentration in wild boar meat may still exceed the permitted levels

137Cs activity concentration in wild boar meat may still exceed the permitted levels

Modeling radionuclide Cs and C dynamics in an artificial forest ecosystem in Japan -FoRothCs ver1.0-

Artificial environmental radionuclides in Europe and methods of lowering their foodstuff contamination – a review

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¹³⁷Cs activity concentration in wild boar meat may still exceed the permitted levels

¹³⁷Cs activity concentration in wild boar meat may still exceed the permitted levels