Radiological bioconcentration factors for aquatic, terrestrial, and wetland ecosystems at the Savannah River site

Friday, G.P.; Cummins, C.L.; Schwartzman, A.L.

doi:10.2172/573692

Cited by 7 publications

(5 citation statements)

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“…The cotton rat eats primarily grasses (Golley, 1962;Randolph et al, 1991) while the cotton mouse is an omnivore that may consume more animal than plant material (Calhoun, 1941). These concentration ratios are generally similar to the average dry weight concentration ratio of 1.6 for white tailed deer (Odocoileus virginianus) at SRS (Friday et al, 1996). However, the average concentration ratio for 137 Cs in kangaroo rats from parts of Nevada and Utah contaminated by radioactive fallout were under 0.1 (calculated from data in Romney et al, 1983), which is less than the concentration ratios observed at all but one site in this study (Table 2).…”

Section: Discussionsupporting

confidence: 76%

Concentration ratios for small mammals collected from the exposed sediments of a 137Cs contaminated reservoir

Paller

Jannik

Wike

2006

Journal of Environmental Radioactivity

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Section: Discussionsupporting

confidence: 76%

Concentration ratios for small mammals collected from the exposed sediments of a 137Cs contaminated reservoir

Paller

Jannik

Wike

2006

Journal of Environmental Radioactivity

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“…In this situation 91 Sr and 92 Sr have little radiological significance owing to their short physical half-life (a few hours) but this is different for 89 Sr (half-life 51 days) and 90 Sr (29 years). Nuclear accidents are not the only source of 89 Sr and 90 Sr isotopes: atmospheric nuclear weapon tests 3 , misconducted underground nuclear weapon tests 4 , improper handling of by-products of nuclear weapon production 5 6 or normal operation of nuclear facilities (e.g. reprocessing plants) 3 can also result in contamination.…”

mentioning

confidence: 99%

Strontium-90 activity concentration in soil samples from the exclusion zone of the Fukushima daiichi nuclear power plant

Sahoo¹,

Kávási²,

Sorimachi

et al. 2016

Sci Rep

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The radioactive fission product 90Sr has a long biological half-life (˜18 y) in the human body. Due to its chemical similarity to calcium it accumulates in bones and irradiates the bone marrow, causing its high radio-toxicity. Assessing 90Sr is therefore extremely important in case of a nuclear disaster. In this work 16 soil samples were collected from the exclusion zone (<30 km) of the earthquake-damaged Fukushima Daiichi nuclear power plant, to measure 90Sr activity concentration using liquid scintillation counting. 137Cs activity concentration was also measured with gamma-spectroscopy in order to investigate correlation with 90Sr. The 90Sr activity concentrations ranged from 3.0 ± 0.3 to 23.3 ± 1.5 Bq kg−1 while the 137Cs from 0.7 ± 0.1 to 110.8 ± 0.3 kBq kg−1. The fact that radioactive contamination originated from the Fukushima nuclear accident was obvious due to the presence of 134Cs. However, 90Sr contamination was not confirmed in all samples although detectable amounts of 90Sr can be expected in Japanese soils, as a background, stemming from global fallout due to the atmospheric nuclear weapon tests. Correlation analysis between 90Sr and 137Cs activity concentrations provides a potentially powerful tool to discriminate background 90Sr level from its Fukushima contribution.

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“…This showed that the BIV bioaccumulation value of 137 Cs in the selected organisms was higher than both 226 Ra and 238 U values. Increasing accumulation of artificial 137 Cs activity concentration in aquatic organisms occurred through different mechanisms as the direct uptake from water (bio-concentration), uptake of suspended particles (ingestion) and the consumption of contaminated food bio-magnification [18]…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Suitability of Cooling Water System of Nuclear Power Plant in Egypt Using ERICA and RESRAD Biota Models

Hassan¹

2021

Arab Journal of Nuclear Sciences and Applications

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Egypt is planning for the construction of electricity generating nuclear facilities to accommodate population growth and increased industrial and domestic demand for electric energy. This study aims to predicate radiological exposure levels of marine biota such as crustaceans, bivalve mollusks and zooplankton using ERICA and RESRAD models. Due to assuming exposure of these organisms to the emitted radionuclides from the discharge of cooling water system of the suggested Egyptian Nuclear Power Plant (ENPP) on the northern coast of the Mediterranean Sea in Egypt. To achieve this study, eighteen water samples were collected from the three selected sites (Alam El-Aroum, Mina El-Hashish and El Alamein) in the coastal region of the north Mediterranean in Egypt where their activity concentrations were measured using high performance gamma spectrometer. The calculated absorbed dose rates of the selected biota by using both ERICA and RESRAD tools were below the ERICA 10Gy/h screening value. The results of both two models showed that the biota concentration guide BCG and the risk quotient QR of the selected biota have complied with the recommended limits indicating that the minimum radioactive effect of once through cooling system on the selected biota. On the other hand, the results showed that the least radiological impact of the once through cooling system using the ERICA model was at a distance of 1 Km starting from the cooling discharge point to the shore and up to 2 km to the receptor inside the Mediterranean Sea.

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Radiological bioconcentration factors for aquatic, terrestrial, and wetland ecosystems at the Savannah River site

Cited by 7 publications

References 0 publications

Concentration ratios for small mammals collected from the exposed sediments of a 137Cs contaminated reservoir

Concentration ratios for small mammals collected from the exposed sediments of a 137Cs contaminated reservoir

Strontium-90 activity concentration in soil samples from the exclusion zone of the Fukushima daiichi nuclear power plant

Evaluation of Suitability of Cooling Water System of Nuclear Power Plant in Egypt Using ERICA and RESRAD Biota Models

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