Measurements of 210Po and 210Pb in total diet samples: Estimate of dietary intakes of 210Po and 210Pb for Japanese

Yamamoto, Masayoshi; Sakaguchi, Aya; Tomita, Junpei; Imanaka, Tetsuji; Shiraishi, Kunio

doi:10.1007/s10967-007-7198-8

Cited by 21 publications

(12 citation statements)

References 14 publications

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“…To compare dose rate with background radiation in Japan, reference values were cited from the literatures (24)(25)(26)(27)(28)(29)(30). Regional dose rates of external exposure and radon inhalation were estimated from means among 47 prefectures and 7 regions in Japan (25)(26)(27)(28).…”

Section: Methodsmentioning

confidence: 99%

“…Regional dose rates of external exposure and radon inhalation were estimated from means among 47 prefectures and 7 regions in Japan (25)(26)(27)(28). Variation in internal exposure to 210 Po and 210 Pb was calculated by bootstrapping the dose rate estimates among several cities in Japan into 47 prefectures (1,000 iterations) (29,30). In each bootstrap dataset, the 5th and 95th percentile dose rates were calculated and their means were presented as a range of the total dose rate from background radiation.…”

Section: Methodsmentioning

confidence: 99%

“…Nationwide surveys on terrestrial and cosmic radiation and radon concentration have shown an annual dose ranging from 0.72 to 1.24 mSv among 47 prefectures (25)(26)(27)(28). Internal exposure to 210 Po and 210 Pb has been investigated in several cities in Japan and found to range from 0.15 to 0.81 mSv/y and from 0.03 to 0.16 mSv/y, respectively (29,30). Dose rates for 210 Po and 210 Pb were bootstrapped into 47 prefectures with 1,000 replicates.…”

Section: Total Radiation Dose Rates Estimated By Monte Carlo Simulationmentioning

confidence: 99%

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Radiation dose rates now and in the future for residents neighboring restricted areas of the Fukushima Daiichi Nuclear Power Plant

Harada¹,

Niisoe

Imanaka

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

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Radiation dose rates were evaluated in three areas neighboring a restricted area within a 20-to 50-km radius of the Fukushima Daiichi Nuclear Power Plant in August-September 2012 and projected to 2022 and 2062. Study participants wore personal dosimeters measuring external dose equivalents, almost entirely from deposited radionuclides (groundshine). External dose rate equivalents owing to the accident averaged 1.03, 2.75, and 1.66 mSv/y in the village of Kawauchi, the Tamano area of Soma, and the Haramachi area of Minamisoma, respectively. Internal dose rates estimated from dietary intake of radiocesium averaged 0.0058, 0.019, and 0.0088 mSv/y in Kawauchi, Tamano, and Haramachi, respectively. Dose rates from inhalation of resuspended radiocesium were lower than 0.001 mSv/y. In 2012, the average annual doses from radiocesium were close to the average background radiation exposure (2 mSv/y) in Japan. Accounting only for the physical decay of radiocesium, mean annual dose rates in 2022 were estimated as 0.31, 0.87, and 0.53 mSv/y in Kawauchi, Tamano, and Haramachi, respectively. The simple and conservative estimates are comparable with variations in the background dose, and unlikely to exceed the ordinary permissible dose rate (1 mSv/y) for the majority of the Fukushima population. Health risk assessment indicates that post-2012 doses will increase lifetime solid cancer, leukemia, and breast cancer incidences by 1.06%, 0.03% and 0.28% respectively, in Tamano. This assessment was derived from short-term observation with uncertainties and did not evaluate the firstyear dose and radioiodine exposure. Nevertheless, this estimate provides perspective on the long-term radiation exposure levels in the three regions.Fukushima nuclear disaster | exposure assessment | Strontium-90 | forest contamination | food duplicate

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Total Radiation Dose Rates Estimated By Monte Carlo Simulationmentioning

confidence: 99%

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Radiation dose rates now and in the future for residents neighboring restricted areas of the Fukushima Daiichi Nuclear Power Plant

Harada¹,

Niisoe

Imanaka

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

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“…In Japan, the intake levels of 210 Pb and 210 Po by marine food consumption were estimated to be 0.022-0.042 and 0.48-0.69 Bq day −1 per person, respectively (Yamamoto et al 1994), very similar values to those here obtained. Recently, Yamamoto et al (2009) reviewed information on the intake of 210 Pb and 210 Po in various countries. In comparison to those data, the dietary intake of 210 Pb by the population living in the Catalan stretch of the Ebro River is at the lowest part of the reported range (0.04-0.88 Bq day −1 ), while the 210 Po intake is close to that found in Japan (median, 0.61 Bq day −1 ).…”

Section: Human Health Risk Assessmentmentioning

confidence: 99%

“…The fractional transfer to blood was assumed to be 0.2, for 210 Pb, and 0.1, for 210 Po (Yamamoto et al 2009). The annual dose was estimated to range between 1.3 and 3.7 μSv due to 210 Pb intake, and between 24 and 43 μSv derived from 210 Po ingestion.…”

Section: Human Health Risk Assessmentmentioning

confidence: 99%

Human health risk assessment of environmental and dietary exposure to natural radionuclides in the Catalan stretch of the Ebro River, Spain

Nadal

Casacuberta

García-Orellana

et al. 2010

Environ Monit Assess

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This study was aimed at assessing the levels of 210Pb and 210Po concentrations as well as gross alpha and beta activities in environmental monitors from the Catalan stretch of the Ebro River (Spain), potentially influenced by the presence of sediments with high concentrations of 238U and its decay chain daughters in the Flix reservoir. The chronic daily intake of 210Pb and 210Po through ingestion and inhalation of soils was evaluated, and the derived non-carcinogenic and carcinogenic risks were characterized. The low concentration of radioisotopes in soils resulted in a negligible annual effective dose. The levels of 210Pb and 210Po were determined in various groups of highly consumed food (fish and seafood, vegetables, fruits, and rice), and their dietary intake was calculated. The annual effective dose for the adult people from food intake was estimated in 3.3×10(-2) mSv, mostly due to 210Po. Overall, the current radioactivity levels in the Catalan stretch of the Ebro River should not mean any additional health risk for the population living nearby. However, an integral assessment of the risks derived from exposure to other pollutants (e.g., metals and organochlorine compounds) jointly with radionuclides could be of great interest.

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A study of various self deposition solutions for 210Po analysis in tap water

Xarchoulakos

Kehagia

2018

J Radioanal Nucl Chem

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Measurements of 210Po and 210Pb in total diet samples: Estimate of dietary intakes of 210Po and 210Pb for Japanese

Cited by 21 publications

References 14 publications

Radiation dose rates now and in the future for residents neighboring restricted areas of the Fukushima Daiichi Nuclear Power Plant

Radiation dose rates now and in the future for residents neighboring restricted areas of the Fukushima Daiichi Nuclear Power Plant

Human health risk assessment of environmental and dietary exposure to natural radionuclides in the Catalan stretch of the Ebro River, Spain

A study of various self deposition solutions for 210Po analysis in tap water

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