Probabilistic Assessment of Doses to the Public Living in Areas Contaminated by the Fukushima Daiichi Nuclear Power Plant Accident

Takahara, Shiro; Iijima, Masashi; Shimada, Kazumasa; Kimura, Masanori; Homma, Tetsuya

doi:10.1007/978-4-431-54583-5_18

Cited by 4 publications

(5 citation statements)

References 6 publications

(9 reference statements)

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“…The same tendency was observed in the results of this study, which were calculated using the AM of surface density in Fukushima City and the 95th percentile of time spent outdoors, according to the ICRP recommendation (ICRP 2006). A previous study (Takahara et al 2014) showed that the surface density after the Fukushima accident is lognormally distributed as the prevailing situation. In the case of a lognormal distribution, the AM is theoretically higher than the geometric mean (GM), and as shown in table 2, this tendency is the same in this study.…”

Section: Results Of the Exercisementioning

confidence: 96%

“…For these population groups, individual external doses and behavioural patterns in various types of places (e.g. indoors, outdoors, home, workplace) were surveyed by JAEA researchers (Takahara et al 2014(Takahara et al , 2020. Measurements of individual external doses were performed for indoor workers and outdoor workers using personal dosimeters (PDM-122B-SHC; Hitachi Ltd, Tokyo, Japan).…”

Section: Individual External Doses To the Population And Habit Data I...mentioning

confidence: 99%

“…paid work, outdoor recreational activities or indoor activities) for dose assessment in accordance with this recommendation (ICRP 2006). In addition, the assessors could use the recommended distributions for time spent outdoors, which were determined by the normality test in a previous study (Takahara et al 2014).…”

Section: Individual External Doses To the Population And Habit Data I...mentioning

confidence: 99%

“…The modelling exercise described in this paper was intended to provide an opportunity to test model predictions for external radiation doses received by populations in an urban situation. The exercise was developed based on actual measurements made in Japan following the accident at the Fukushima Daiichi Nuclear Power Plant (FDNPP) in 2011 and on surveys carried out by Japan Atomic Energy Agency (JAEA) in Fukushima City (Takahara et al 2014(Takahara et al , 2020.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Assessment of doses in contaminated urban areas: modelling exercise based on Fukushima data

Takahara¹,

Charnock²,

Silva³

et al. 2022

J. Radiol. Prot.

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State-of-the-art dose assessment models were applied to estimate doses to the population in urban areas contaminated by the Fukushima Daiichi Nuclear Power Plant accident. Assessment results were compared among five models, and comparisons of model predictions with actual measurements were also made. Assessments were performed using both probabilistic and deterministic approaches. Predicted dose distributions for indoor and outdoor workers from a probabilistic approach were in good agreement with the actual measurements. In addition, when the models were applied to assess the doses to the representative person, based on a concept recommended by the International Commission on Radiological Protection and in the International Atomic Energy Agency Safety Standards, it was evident that doses to the representative person obtained with a deterministic approach were always higher than those obtained with a probabilistic approach using the same model.

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Section: Results Of the Exercisementioning

confidence: 96%

Section: Individual External Doses To the Population And Habit Data I...mentioning

confidence: 99%

Section: Individual External Doses To the Population And Habit Data I...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of doses in contaminated urban areas: modelling exercise based on Fukushima data

Takahara¹,

Charnock²,

Silva³

et al. 2022

J. Radiol. Prot.

View full text Add to dashboard Cite

show abstract

“…Because of traffics of cars, nuclides deposited on streets are easier to be removed or penetrate into soil than in living environment, therefore air dose rate measured by car-borne survey tends to be smaller air dose rate measured in living environment. It is shown that the former is approximately 1.2 times lareger than the latter by man-borne survey conducted nearby the street where car-borne surevy was also conducted [10] After The Fukushima Daiichi Nuclear Power Plant accident, there was a statistical survey on time spent indoor and outdoor of Fukushima City office workers [12]. According to this, indoor workers spend 0.57 hours outdoor on average.…”

Section: Conversion To Effective Dosementioning

confidence: 99%

Estimation of Effective Dose from External Exposure in The Six Prefectures adjacent to Fukushima Prefecture

et al. 2017

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Abstract. The Fukushima Daiichi Nuclear Power Plant accident caused a release of radionuclides. Radionuclides were deposited on the ground not only in Fukushima prefecture but also in nearby prefectures. Since the accident, measurement of radiation in environment such as air dose rate and deposition density of radionuclides has been performed by many organizations and universities. In particular, Japan Atomic Energy Agency (JAEA) has been performing observations of air dose rate using a car-borne survey system continuously and over wide areas. In our study, using the data measured by JAEA, we estimated effective dose from external exposure in the six prefectures adjacent to Fukushima prefecture. Since car-borne survey was started a few months later after the accident, measured air dose rate in this method is mainly contributed by 137 Cs and 134 Cs whose half-lives are relatively long. Therefore, based on air dose rate of 137 Cs and 134 Cs and the ratio of deposition density of short-half-life nuclides to that of 137 Cs and 134 Cs, we also estimated effective dose contributed from not only 137 Cs and 134 Cs but also other short-halflife nuclides. We compared the effective dose estimated by the method above with that of UNSCEAR and measured data using personal dosimeters in some areas.

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Assessment of Doses to Inhabitants Living in Fukushima Prefecture

Agency

2014

Jpn. J. Health Phys.

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Probabilistic Assessment of Doses to the Public Living in Areas Contaminated by the Fukushima Daiichi Nuclear Power Plant Accident

Cited by 4 publications

References 6 publications

Assessment of doses in contaminated urban areas: modelling exercise based on Fukushima data

Assessment of doses in contaminated urban areas: modelling exercise based on Fukushima data

Estimation of Effective Dose from External Exposure in The Six Prefectures adjacent to Fukushima Prefecture

Assessment of Doses to Inhabitants Living in Fukushima Prefecture

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