Limits...
Internal radiation exposure dose in Iwaki city, Fukushima prefecture after the accident at Fukushima Dai-ichi Nuclear Power Plant.

Orita M, Hayashida N, Nukui H, Fukuda N, Kudo T, Matsuda N, Fukushima Y, Takamura N - PLoS ONE (2014)

Bottom Line: As a result of the accident at the Fukushima Daiichi Nuclear Power Plant (FNPP) on 11 March 2011, a huge amount of radionuclides, including radiocesium, was released and spread over a wide area of eastern Japan.The results showed that 99% of subjects registered below 300 Bq per body in the first screening, and all subjects registered below 300 Bq per body in the second screening.The committed effective dose ranged from 0.01-0.06 mSv in the first screening and 0.01-0.02 mSv in the second screening.

View Article: PubMed Central - PubMed

Affiliation: Department of Global Health, Medicine and Welfare, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.

ABSTRACT
As a result of the accident at the Fukushima Daiichi Nuclear Power Plant (FNPP) on 11 March 2011, a huge amount of radionuclides, including radiocesium, was released and spread over a wide area of eastern Japan. Although three years have passed since the accident, residents around the FNPP are anxious about internal radiation exposure due to radiocesium. In this study, we screened internal radiation exposure doses in Iwaki city of Fukushima prefecture, using a whole-body counter. The first screening was conducted from October 2012 to February 2013, and the second screening was conducted from May to November 2013. Study participants were employees of ALPINE and their families who underwent examination. A total of 2,839 participants (1,366 men and 1,473 women, 1-86 years old) underwent the first screening, and 2,092 (1,022 men and 1,070 women, 1-86 years old) underwent the second screening. The results showed that 99% of subjects registered below 300 Bq per body in the first screening, and all subjects registered below 300 Bq per body in the second screening. The committed effective dose ranged from 0.01-0.06 mSv in the first screening and 0.01-0.02 mSv in the second screening. Long-term follow-up studies are needed to avoid unnecessary chronic internal exposure and to reduce anxiety among the residents by communicating radiation health risks.

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Location of Iwaki city in Fukushima Prefecture.
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pone-0114407-g001: Location of Iwaki city in Fukushima Prefecture.

Mentions: Iwaki city is located to the southeast of the Fukushima prefecture (Figure 1). It is one of the largest cities in Japan in terms of land area, and the second largest city in Fukushima prefecture in terms of population. The city is located within a 30–60 km radius around FNPP but was not designated as an evacuation zone. Nevertheless, many residents voluntarily evacuated from Iwaki city due to their anxiety about radiation exposure [13]. At ALPINE electronics, Inc. (ALPINE), which has its head office in Iwaki city, some workers left the company due to anxiety about the possible health effects on their family and themselves. Workers who remained at the company felt anxiety about potential health effects due to radiation exposure. This situation led ALPINE to conduct WBC (Figure 2) to assess the internal radiation exposure of their employees in order to minimize the anxiety of their workers and their families. In this study, we reported the results of the internal body burden screening conducted at ALPINE from October 2012 to February 2013 (first screening) and from May to November 2013 (second screening), and we evaluated internal radiation exposure to radiocesium in residents living in Iwaki city.


Internal radiation exposure dose in Iwaki city, Fukushima prefecture after the accident at Fukushima Dai-ichi Nuclear Power Plant.

Orita M, Hayashida N, Nukui H, Fukuda N, Kudo T, Matsuda N, Fukushima Y, Takamura N - PLoS ONE (2014)

Location of Iwaki city in Fukushima Prefecture.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4257669&req=5

pone-0114407-g001: Location of Iwaki city in Fukushima Prefecture.
Mentions: Iwaki city is located to the southeast of the Fukushima prefecture (Figure 1). It is one of the largest cities in Japan in terms of land area, and the second largest city in Fukushima prefecture in terms of population. The city is located within a 30–60 km radius around FNPP but was not designated as an evacuation zone. Nevertheless, many residents voluntarily evacuated from Iwaki city due to their anxiety about radiation exposure [13]. At ALPINE electronics, Inc. (ALPINE), which has its head office in Iwaki city, some workers left the company due to anxiety about the possible health effects on their family and themselves. Workers who remained at the company felt anxiety about potential health effects due to radiation exposure. This situation led ALPINE to conduct WBC (Figure 2) to assess the internal radiation exposure of their employees in order to minimize the anxiety of their workers and their families. In this study, we reported the results of the internal body burden screening conducted at ALPINE from October 2012 to February 2013 (first screening) and from May to November 2013 (second screening), and we evaluated internal radiation exposure to radiocesium in residents living in Iwaki city.

Bottom Line: As a result of the accident at the Fukushima Daiichi Nuclear Power Plant (FNPP) on 11 March 2011, a huge amount of radionuclides, including radiocesium, was released and spread over a wide area of eastern Japan.The results showed that 99% of subjects registered below 300 Bq per body in the first screening, and all subjects registered below 300 Bq per body in the second screening.The committed effective dose ranged from 0.01-0.06 mSv in the first screening and 0.01-0.02 mSv in the second screening.

View Article: PubMed Central - PubMed

Affiliation: Department of Global Health, Medicine and Welfare, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.

ABSTRACT
As a result of the accident at the Fukushima Daiichi Nuclear Power Plant (FNPP) on 11 March 2011, a huge amount of radionuclides, including radiocesium, was released and spread over a wide area of eastern Japan. Although three years have passed since the accident, residents around the FNPP are anxious about internal radiation exposure due to radiocesium. In this study, we screened internal radiation exposure doses in Iwaki city of Fukushima prefecture, using a whole-body counter. The first screening was conducted from October 2012 to February 2013, and the second screening was conducted from May to November 2013. Study participants were employees of ALPINE and their families who underwent examination. A total of 2,839 participants (1,366 men and 1,473 women, 1-86 years old) underwent the first screening, and 2,092 (1,022 men and 1,070 women, 1-86 years old) underwent the second screening. The results showed that 99% of subjects registered below 300 Bq per body in the first screening, and all subjects registered below 300 Bq per body in the second screening. The committed effective dose ranged from 0.01-0.06 mSv in the first screening and 0.01-0.02 mSv in the second screening. Long-term follow-up studies are needed to avoid unnecessary chronic internal exposure and to reduce anxiety among the residents by communicating radiation health risks.

Show MeSH
Related in: MedlinePlus