Estimating future radiocaesium contamination of fungi on the basis of behaviour patterns derived from past instances of contamination

Rühm, W.; Steiner, M.; Kammerer, L.; Hiersche, L.; Wirth, E.

doi:10.1016/s0265-931x(97)00055-6

Cited by 34 publications

(9 citation statements)

References 17 publications

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“…It was found that fungal species whose mycelium takes part in such processes show generally high transfer factors of 137 Cs whereas nonmycorrhizal ones accumulate radiocesium less intensively. Some authors pointed to the relationship between radiocesium accumulation properties and the depth of location of mycelium as the most important factor (Guillitte et al, 1987(Guillitte et al, , 1991Oolbekkink and Kuyper, 1989;Rühm et al, 1998). The observation of the depth of mycelium localization was possible for several years after the Chernobyl accident due to the presence of 134 Cs along with 137 Cs in this fallout.…”

Section: Introductionmentioning

confidence: 93%

“…the depth of the mycelium localization. This approach gave some predictive results Rühm et al, 1998). For example, the activities observed for X. badius from given locations should decrease and those for Boletus edulis, will relatively increase, which will change the ranking of the accumulation properties between fruiting bodies belonging to different species.…”

Section: Introductionmentioning

confidence: 99%

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137Cs and 40K in fruiting bodies of different fungal species collected in a single forest in southern Poland

Mietelski

Dubchak

Błażej

et al. 2010

Journal of Environmental Radioactivity

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

137Cs and 40K in fruiting bodies of different fungal species collected in a single forest in southern Poland

Mietelski

Dubchak

Błażej

et al. 2010

Journal of Environmental Radioactivity

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“…High concentrations of radioactivity incorporation may be induced by widespread distribution of mycelia near the litter surface. Because radiocesium activity at each soil depth changes with time, radiocesium activity in different fungal species at different mycelial depths are also expected to vary with time (Rühm et al 1998 ; Cs migrates very slowly into the A horizon (Kammerer et al 1994 ;Pietrzak-Flis et al 1996 ;Rühm et al 1998 ). Thus, the changes are expected to be different between P. lubrica and other fungal species.…”

Section: Relationship Between Mushroom Contamination and Radiocesium mentioning

confidence: 99%

Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

Yamada

2013

Agricultural Implications of the Fukushima Nuclear Accident

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High concentrations of radionuclide contamination of wild mushrooms occurred near the Fukushima Daiichi nuclear power plant and along the path of radioactive plumes. This is a serious problem for the forest ecosystem and commercial wild mushroom production. Radioactivity in wild mushrooms collected from low-level contamination forest areas throughout Japan was measured approximately 6 months after the accident. In general, the radioactivity in mushrooms did not exceed those in the neighboring forest litter. However, further accumulation of 137 Cs is expected in mushrooms; therefore, continuous monitoring is necessary even in low-contamination areas. We also found that residual 137 Cs radioactivity due to nuclear weapons tests, mainly in 1950s, besides fallout from the Fukushima nuclear accident still remained in soil and was accumulated by mushrooms.

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“…In mycorrhizal fungi, which has mycelia in a relatively deep layer, the 137 Cs concentration increased with time after deposition because of the migration of 137 Cs from surface soil to deeper layers. 39,40) In consideration of our results and others, the half-life of 137 Cs concentration in mushrooms should be related to the sites of growth and to 137 Cs concentrations in places (or medium) where mycelia are growing.…”

Section: The Variation Of 137 Cs Concentrations In L Edodes Collectementioning

confidence: 64%

Concentrations of 137Cs and 40K in Mushrooms Consumed in Japan and Radiation Dose as a Result of Their Dietary Intake

Ban-Nai¹,

Muramatsu

Yoshida³

2004

JRR

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Mushrooms are known to accumulate radiocesium. To estimate the intake of radiocesium through the eating of mushrooms, about 30 samples belonging to 4 commonly consumed species (Lentinula edodes, Hypsizigus marmoreus, Grifola frondosa, and Tricholoma matsutake), were analyzed for (137)Cs and (40)K. The concentration ranges were 0.060-29 Bq kg(-1) (wet wt) for (137)Cs and 38-300 Bq kg(-1) (wet wt) for (40)K. The geometric mean concentration for (137)Cs was 0.56 Bq kg(-1) (wet wt), and the mean concentration for (40)K was 92 Bq kg(-1) (wet wt). The (137)Cs concentrations in L. edodes cultivated in mushroom beds (sawdust-rice bran media) were lower than those cultivated on bed logs (natural wood with bark). The annual intake of (137)Cs per person through mushrooms was calculated, by using the current analytical results and food consumption data in Japan, to be 3.1 Bq for (137)Cs, which is about 28% of the total dietary intake of this nuclide. The effective dose equivalent of (137)Cs through mushrooms was estimated to be 4.0 currency 10(-8) Sv, which is about the half the value obtained in our previous study. The decrease of the (137)Cs intake through mushrooms is probably related to changes in cultivation methods in recent years, from the use of bed logs to mushroom beds.

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Estimating future radiocaesium contamination of fungi on the basis of behaviour patterns derived from past instances of contamination

Cited by 34 publications

References 17 publications

137Cs and 40K in fruiting bodies of different fungal species collected in a single forest in southern Poland

137Cs and 40K in fruiting bodies of different fungal species collected in a single forest in southern Poland

Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

Concentrations of 137Cs and 40K in Mushrooms Consumed in Japan and Radiation Dose as a Result of Their Dietary Intake

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