Radioactivity in food and total diet samples collected in selected settlements in the USSR

Cooper, E.L.; Zeiller, E.; Ghods-Esphahani, A.; Makarewicz, M.; Schelenz, R.; Frindik, O.; Heilgeist, M.; Kalus, W. H.

doi:10.1016/0265-931x(92)90023-m

Cited by 33 publications

(20 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…or 20 kBq.l -1 for mice Synhaeve et al, 2011). In both models, this radionuclide concentration leads to a daily chronic intake in the range of 75-90 Bq per day and per animal, in a similar range to what was estimated for populations living in countries contaminated by the Chernobyl accident (Cooper et al, 1992;Handl et al, 2003). These studies showed that the contamination of rodents by 137 Cs induced some modifications in various physiological systems.…”

Section: Introductionsupporting

confidence: 64%

“…These radionuclides can be found in all compartments of the environment, including food chains leading to humans. As a result, large populations are ingesting daily small amounts of these radionuclides (Cooper et al, 1992;De Ruig and Van der Struijs, 1994;Handl et al, 2003). However, the health consequences of such chronic ingestion of low quantities of radionuclides remain difficult to delineate, due to the complexity of exposure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Absorbed radiation doses due to chronic ingestion of cesium-137 or strontium-90 by mice

et al. 2012

View full text Add to dashboard Cite

show abstract

Section: Introductionsupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Absorbed radiation doses due to chronic ingestion of cesium-137 or strontium-90 by mice

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Assuming that the daily consumption of an adult rat is between 25 and 30 ml of water, a concentration of 6500 Bq.l −1 of 137 Cs in water corresponds to an amount of 170 Bq/animal ingested per day. This daily intake is consistent with the estimations made for populations living in contaminated countries following the Chernobyl accident (between 20 and 2100 Bq.day −1 ) [4, 5, 35] and is close to the intake of 100 Bq.day −1 (without considering mushrooms) measured for inhabitants living in the highly contaminated zone II of Christinovka (between 555 and 1480 kBq.m −2 of 137 Cs) [5]. Rats in the control group were given uncontaminated mineral water.…”

Section: Methodssupporting

confidence: 90%

Chronic exposure of adult, postnatal and in utero rat models to low-dose 137Cesium: impact on circulating biomarkers

Manens¹,

Grison²,

Bertho³

et al. 2016

Journal of Radiation Research

View full text Add to dashboard Cite

The presence of 137Cesium (137Cs) in the environment after nuclear accidents at Chernobyl and more recently Fukushima Daiichi raises many health issues for the surrounding populations chronically exposed through the food chain. To mimic different exposure situations, we set up a male rat model of exposure by chronic ingestion of a 137Cs concentration likely to be ingested daily by residents of contaminated areas (6500 Bq.l−1) and tested contaminations lasting 9 months for adult, neonatal and fetal rats. We tested plasma and serum biochemistry to identify disturbances in general indicators (lipids, proteins, carbohydrates and electrolytes) and in biomarkers of thyroid, heart, brain, bone, kidney, liver and testis functions. Analysis of the general indicators showed increased levels of cholesterol (+26%), HDL cholesterol (+31%), phospholipids B (+15%) and phosphorus (+100%) in the postnatal group only. Thyroid, heart, brain, bone and kidney functions showed no blood changes in any model. The liver function evaluation showed changes in total bilirubin (+67%) and alkaline phosphatase (–11%) levels, but only for the rats exposed to 137Cs intake in adulthood. Large changes in 17β-estradiol (–69%) and corticosterone (+36%) levels affected steroidogenesis, but only in the adult model. This study showed that response profiles differed according to age at exposure: lipid metabolism was most radiosensitive in the postnatal model, and steroid hormone metabolism was most radiosensitive in rats exposed in adulthood. There was no evidence of deleterious effects suggesting a potential impact on fertility or procreation.

show abstract

“…It has a half-life of 28.2 years, and due to its solubility and its chemical properties, it is a long-term remnant in the environment. Many populations have been chronically exposed to low concentrations of this radionuclide, either through ingestion or through inhalation (Cooper et al, 1992). Food and drinking water are the largest sources of exposure.…”

Section: Introductionmentioning

confidence: 99%

Cellular dosimetry of strontium-90 using the Monte Carlo code MCNPX, detection and X-ray microanalysis

Hocine

Farlay²,

Bertho³

et al. 2014

Radioprotection

View full text Add to dashboard Cite

-The aim of this study is to provide data that increase knowledge about the possible health effects of exposure to 90 Sr contaminant in drinking water. 90 Sr detection in the mouse bone model plays an important complementary role with computational dosimetry in these investigations. S-value (absorbed dose per unit cumulated activity) calculations using Monte Carlo (MC) simulations, 90 Sr detection by liquid scintillation β counting in the femur bone and X-ray microanalysis were carried out. The present work is focused on using MCNPX and its validation at a cellular level. The cytoplasm (Cy), nucleus (N) and 90 Sr radiation source were simulated with the MC code MCNPX. Cells are assumed to be spherical, with the radii of the cell and cell nucleus ranging from 2 to 10 μm. The S-value (in Gy/Bq.s) calculations were provided for a 90 Sr source distributed uniformly in the cell nucleus or cytoplasm and for two sourcetarget combinations (t←s). A comparison between the calculated MC results and the MIRD values agreed very well since the relative deviations are less than 4%. The earliest results of X-ray microanalysis indicated that the 90 Sr was below the detection limit (<0.1%) in the bone tissue. However, the measurements by liquid scintillation showed the presence of 90 Sr in the femur bone.

show abstract

Radioactivity in food and total diet samples collected in selected settlements in the USSR

Cited by 33 publications

References 2 publications

Absorbed radiation doses due to chronic ingestion of cesium-137 or strontium-90 by mice

Absorbed radiation doses due to chronic ingestion of cesium-137 or strontium-90 by mice

Chronic exposure of adult, postnatal and in utero rat models to low-dose 137Cesium: impact on circulating biomarkers

Cellular dosimetry of strontium-90 using the Monte Carlo code MCNPX, detection and X-ray microanalysis

Contact Info

Product

Resources

About