Radionuclides in grassland, heath, mire and mountain ecosystems

Salt, C. A.

doi:10.1016/s1569-4860(06)10005-4

Cited by 4 publications

(3 citation statements)

References 85 publications

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“…Atmospheric removal of 137 Cs following the Chernobyl accident was high at locations with heavy rain and caused hot spot pollution of soils in some parts of Europe (Smith 1994 ; Strzelecki et al 1993 ). Mountain ecosystems can be specifically prone to radioactive fallout after nuclear weapon detonations in the atmosphere and after major nuclear accidents (Salt 2007 ).…”

Section: Introductionmentioning

confidence: 99%

Artificial 137Cs and natural 40K in mushrooms from the subalpine region of the Minya Konka summit and Yunnan Province in China

Falandysz

Saniewski

Zhang

et al. 2017

Environ Sci Pollut Res

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A study on 137Cs pollution and activity concentrations of 40K in mushrooms of the genera Cortinarius, Leccinum, Russula, Tricholoma, Tylopilus, and Xerocomus from two neighboring regions in southwest China in 2010–2013 revealed different patterns of pollution with 137Cs, which seemed to be highly dependent on climate conditions. Tricholoma matsutake was collected in Yunnan before and after the Fukushima Dai-ichi nuclear accident and showed similar contamination with 137Cs. Mushrooms from the elevation of 2800–3480 m above sea level on the east slope of Minya Konka and forest topsoil showed higher contamination with 137Cs than mushrooms from the highlands of Yunnan. In detail, the activity concentration of 137Cs in caps of mushrooms from Minya Konka were in the range 62 ± 6–280 ± 150 Bq kg−1 dry biomass and from Yunnan at < 4.4–83 ± 3 Bq kg−1 dry biomass. The climate in the region of the Minya Konka is much colder than in Yunnan, which seems to favor deposition of 137Cs at higher altitudes from global atmospheric circulation. The activity concentration of 40K in mushrooms and soils highly exceeded that of 137Cs. The assessed annual effective doses for 137Cs in 1 kg of consumed mushrooms of the genera Leccinum and Xerocomus in Yunnan were low, i.e., in the range < 0.0043–0.049 ± 0.004 μSv, while those for 40K were 0.26 ± 0.02–0.81 ± 0.09 μSv.

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Section: Introductionmentioning

confidence: 99%

Artificial 137Cs and natural 40K in mushrooms from the subalpine region of the Minya Konka summit and Yunnan Province in China

Falandysz

Saniewski

Zhang

et al. 2017

Environ Sci Pollut Res

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“…Twining et al (2004) studied soil-plant transfer in a tropical monsoon environment, concluding that redox shifts and changes in fungal populations could account for seasonality in transfer, highlighting the potential for enhanced uptake of a range of radionuclides. Salt et al (2004) discussed the lack of a specific seasonal pattern to uptake and two general patterns of seasonality with respect to radiocaesium were described by Salt (2007): (a) a rise in spring towards a peak in summer with decline through the autumn and a winter low or (b) a rise in the spring with decline over summer and autumn to a winter low. There is a general lack of data describing seasonality in uptake for other radionuclides, although Hartmann and Bachmann (1988), observing seasonality of Pu uptake in tree species, advocated that the role of meteorological (and hence climatic) variables requires more study.…”

Section: Radionuclide Uptake In Vegetation: Seasonal Variationsmentioning

confidence: 99%

Will global warming affect soil-to-plant transfer of radionuclides?

Dowdall

Standring

Shaw

et al. 2008

Journal of Environmental Radioactivity

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“…Changes in redox and acid-base conditions can cause the mobilisation and migration of toxicants and radionuclides [12][13][14][15] both through their transition from reduced to oxidised forms and due to changes in the binding capacity of the peat organomineral matrix. The greatest danger among pollutants in terms of chemical mobilisation from the peat deposit is represented by man-made radionuclides, which have a high toxicity for biota and humans and long periods of decay [16][17][18]. As the main biocenoses in Northern Europe, the upland peatlands have become significant concentrators of man-made radionuclides emissions into the atmosphere because of nuclear weapons testing and radiation emergencies [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Impact of Anthropogenic Drainage of Raised Peat-Bog on Changing the Physicochemical Parameters and Migration of Atmospheric Fallout Radioisotopes in Russia’s Subarctic Zone (Subarctic Zone of Russia)

et al. 2023

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This paper reports on the research results of the radioactivity levels and upward dispersion of radionuclides of atmospheric fallout 210Pb, 137Cs, 241Am and 234,238U as well as key physicochemical parameters in a peat deposit subjected to drainage in 1969–1971. It was found that drainage of the peat bog led the natural moisture content to shrink in the peat. Active aeration in the peat deposit, accompanied by the growth of Eh, raises the strength of oxidative transformation processes of the organic part of the peat, leading to higher levels of peat degradation and major variations in the elemental content. Changes in these parameters affect the behaviour of radionuclides in the peat section. Thus, in contrast to the sites with a natural hydrological regime, within the dried peat deposit a geochemical barrier of sorption type is not formed, capable of retaining a significant proportion of 137Cs. In this connection, there is an acceleration of 137Cs migration. In addition, changes in the hydrological regime led to the predominance of vascular plants with a more developed root system than that of sphagnum, which also contributed to a more intense transfer of 137Cs by the root system up the section. The findings of 210Pb dating of the dried peat bog showed a significantly lower peat accumulation rate compared to the natural bog massif (0.15 ± 0.02 vs. 0.48 ± 0.08 cm/year). A factor examination of the dataset demonstrated that the leading role in the distribution of radionuclides belongs to redox and acid-base conditions, which have changed significantly after draining the peat deposit.

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Radionuclides in grassland, heath, mire and mountain ecosystems

Cited by 4 publications

References 85 publications

Artificial 137Cs and natural 40K in mushrooms from the subalpine region of the Minya Konka summit and Yunnan Province in China

Artificial 137Cs and natural 40K in mushrooms from the subalpine region of the Minya Konka summit and Yunnan Province in China

Will global warming affect soil-to-plant transfer of radionuclides?

Assessment of the Impact of Anthropogenic Drainage of Raised Peat-Bog on Changing the Physicochemical Parameters and Migration of Atmospheric Fallout Radioisotopes in Russia’s Subarctic Zone (Subarctic Zone of Russia)

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