Activity concentrations and population dose from radium-226 in food and drinking water in Taiwan

Kuo, Yen-Chuan; Lai, Shu-Ying; Huang, Ching-Chung; Lin, Yu-Ming

doi:10.1016/s0969-8043(97)00213-3

Cited by 20 publications

(5 citation statements)

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“…Because the transfer factor from the 232 Th radionuclide feed to the poultry products is at least 100 times greater than the transfer factors of the same radionuclide to other animal products. Table 5 shows the comparison of the results obtained with other reports, the mean values of 226 Ra in beef are higher than that those reported values , in Egypt, in United States, in Korea and in Taiwan 14,[27][28][29] . In this study, the average value of 40 K in beef is lower than the values reported in Korea by Choi et al (2008), in Nigeria by Akinloye et al (1999) and in Italy by Meli et al (2013), while our obtained value is higher than the value reported by Harb et al (2010) in Egypt 14,28,30,31 .…”

Section: Resultsmentioning

confidence: 77%

Determination of natural radioactivity in products of animals fed with grass: A case study for Kars Region, Turkey

Cengiz

2020

Sci Rep

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Gülçin Bilgici cengiz in this research, the activity concentrations of 40 K, 232 th and 226 Ra in 41 grass samples collected from Kars region, turkey, were determined using gamma ray spectrometry. natural radioactivity concentrations in animal food products were calculated based on activity concentrations of these radionuclides in pasture-grass samples and dry-grass consumption of animals. the average annual effective dose from these radionuclides for local consumers due to indirect ingestion of cow milk, sheep milk, poultry, mutton and beef consumption have been calculated as 9.01, 0.24, 1.76, 0.38 and 5.25 µSv y-1 , respectively. Furthermore, the calculated average annual effective dose values for adults are within the values found in other countries worldwide. these results show that animal products can be safe for human consumption in terms of radiation exposure due to the natural radionuclides studied. Materials and Methods Sample collection and preparation. Since pasture plants are rich in protein, minerals and vitamins, they can meet the nutritional needs of all grass-eating animals. Pasture plants can be given as fresh, dry and silage to animals and can be grown for grazing 15. Grazing of various animal species in the pastures is the most economical and correct way 16. If the pastures are not used according to a certain system, they will deteriorate immediately. In order not to deteriorate the pasture structure and get the maximum yield from the pasture, it is necessary to graze

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Section: Resultsmentioning

confidence: 77%

Determination of natural radioactivity in products of animals fed with grass: A case study for Kars Region, Turkey

Cengiz

2020

Sci Rep

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“…Measuring gross alpha and beta radioactivity in bottled waters sold in Mexico, Davila Rangel et al [3], found total alpha radioactivity that did not exceed 100 mBq/L in most of the water samples, except in six brands where their concentration in total alpha radioactivity was found up to 600 mBq/L. In a survey carried out in Taiwan, Yen-Chuan Kuo et al [4], assessed the activity concentrations and calculated the corresponding population dose from 226 Ra in food and drinking water. They measured the concentration of 226 Ra in mineral water samples and in drinking and underground waters and found levels that did not exceed 30 mBq/L.…”

Section: Resultsmentioning

confidence: 99%

Radon Measurements in Bottled Waters in Greece

Stamoulis¹,

Ioannides²,

Patiris³

2020

hnps

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Underground waters pass through various types of rocks, which may contain radium and uranium isotopes in such concentrations and chemical forms that could be diluted in the water body. Thus it is possible to contain significant quantities of these radioisotopes such as radium (226Ra), which decays producing a series of alpha and beta emitters that remain in the water. Among them, radon (222Rn) and isotopes of polonium (214Po and 218Po) contribute to significant doses. In this work, we measured radium/radon concentration levels in bottled waters commercially available in Greece. Samples were concentrated by a factor of 20-100, in order to obtain more accurate results, because in the majority of the samples the concentrations measured initially were very low. To measure the radioactivity concentrations, 10 mL of concentrated sample were added to 10 mL of scintillation cocktail in a 20 mL plastic vial and then were counted with a liquid scintillation analyzer. The results show that radium/radon concentrations of the bottled waters range from 7-70 mBq/L.

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“…The water sample can be preconcentrated by various techniques or analyzed without any previous treatment. 32,33,34,35 For 226 Ra measurement, in order to minimize pretreatment time the indirect method based on radon measurement was preferred for our routine controls. An aliquot of the 10 fold preconcentrated water sample, previously prepared for gross alpha and beta measurement, was used for this purpose: 10 ml of preconcentrated sample were transferred in a teflon coated polyethylene vial and 10 ml of water immiscible cocktail Optiscint (Wallac) was added.…”

Section: Radium-226 and Radium-228mentioning

confidence: 99%

Natural radionuclides measurements in drinking water by liquid scintillation counting methods and results

Warwick¹,

Forte²,

Rusconi³

et al. 2003

Environmental Radiochemical Analysis II

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Activity concentrations and population dose from radium-226 in food and drinking water in Taiwan

Cited by 20 publications

References 1 publication

Determination of natural radioactivity in products of animals fed with grass: A case study for Kars Region, Turkey

Determination of natural radioactivity in products of animals fed with grass: A case study for Kars Region, Turkey

Radon Measurements in Bottled Waters in Greece

Natural radionuclides measurements in drinking water by liquid scintillation counting methods and results

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