Radiation Dose Reduction Efficiency of Buildings after the Accident at the Fukushima Daiichi Nuclear Power Station

Monzen, Satoru; Hosoda, Masahiro; Osanai, Minoru; Tokonami, Shinji
July 2014
PLoS ONE;Jul2014, Vol. 9 Issue 7, p1
Academic Journal
Numerous radionuclides were released from the Fukushima Daiichi Nuclear Power Station (F1-NPS) in Japan following the magnitude 9.0 earthquake and tsunami on March 11, 2011. Local residents have been eager to calculate their individual radiation exposure. Thus, absorbed dose rates in the indoor and outdoor air at evacuation sites in the Fukushima Prefecture were measured using a gamma-ray measuring devices, and individual radiation exposure was calculated by assessing the radiation dose reduction efficiency (defined as the ratio of absorbed dose rate in the indoor air to the absorbed dose rate in the outdoor air) of wood, aluminum, and reinforced concrete buildings. Between March 2011 and July 2011, dose reduction efficiencies of wood, aluminum, and reinforced concrete buildings were 0.55±0.04, 0.15±0.02, and 0.19±0.04, respectively. The reduction efficiency of wood structures was 1.4 times higher than that reported by the International Atomic Energy Agency. The efficiency of reinforced concrete was similar to previously reported values, whereas that of aluminum structures has not been previously reported. Dose reduction efficiency increased in proportion to the distance from F1-NPS at 8 of the 18 evacuation sites. Time variations did not reflect dose reduction efficiencies at evacuation sites although absorbed dose rates in the outdoor air decreased. These data suggest that dose reduction efficiency depends on structure types, levels of contamination, and evacuee behaviors at evacuation sites.


Related Articles

  • Internal Radiation Exposure Dose in Iwaki City, Fukushima Prefecture after the Accident at Fukushima Dai-ichi Nuclear Power Plant. Orita, Makiko; Hayashida, Naomi; Nukui, Hiroshi; Fukuda, Naoko; Kudo, Takashi; Matsuda, Naoki; Fukushima, Yoshiko; Takamura, Noboru // PLoS ONE;Dec2014, Vol. 9 Issue 12, p1 

    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...

  • Overview of the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident, with amounts and isotopic compositions of the released radionuclides. Yamamoto, Masayoshi // Journal of Radioanalytical & Nuclear Chemistry;Feb2015, Vol. 303 Issue 2, p1227 

    Huge amounts of radionuclides were released into the atmosphere and ocean from the Fukushima Dai-ichi Nuclear Power Plant (FDNPP), operated by the Tokyo Electric Power Company, as a result of the reactor accident after the magnitude 9.0 Great East Japan Earthquake and subsequent gigantic tsunami...

  • Absorption of Radionuclides from the Fukushima Nuclear Accident by a Novel Algal Strain. Shimura, Hiroki; Itoh, Katsuhiko; Sugiyama, Atsushi; Ichijo, Sayaka; Ichijo, Masashi; Furuya, Fumihiko; Nakamura, Yuji; Kitahara, Ken; Kobayashi, Kazuhiko; Yukawa, Yasuhiro; Kobayashi, Tetsuro; Chirico, Giuseppe // PLoS ONE;Sep2012, Vol. 7 Issue 9, Special section p1 

    Large quantities of radionuclides have leaked from the Fukushima Daiichi Nuclear Power Plant into the surrounding environment. Effective prevention of health hazards resulting from radiation exposure will require the development of efficient and economical methods for decontaminating radioactive...

  • Datastream.  // Wired;Jun2011, Vol. 19 Issue 6, p30 

    The article provides information on the half-lives of radioactive isotopes released by the Fukushima Daiichi nuclear disaster in Japan in March 2011 including technetium, plutonium and tellurium.

  • An update on, radioactive release and exposures after the Fukushima Dai-ichi nuclear disaster. McLaughlin, P. D.; Jones, B.; Maher, M. M. // British Journal of Radiology;Sep2012, Vol. 85 Issue 1017, p1222 

    On 11 March 2011, the Richter scale 0.9-magnitude Tokohu earthquake and tsunami struck the northeast coast of Japan, resulting in widespread injury and loss of life. Compounding this tragic loss of life, a series of equipment and structural failures at the Fukushima Dai-ichi nuclear power plant...

  • Evaluation of Environmental Contamination and Estimated Radiation Doses for the Return to Residents' Homes in Kawauchi Village, Fukushima Prefecture. Taira, Yasuyuki; Hayashida, Naomi; Yamaguchi, Hitoshi; Yamashita, Shunichi; Endo, Yuukou; Takamura, Noboru; Metcalfe, John Z. // PLoS ONE;Sep2012, Vol. 7 Issue 9, Special section p1 

    To evaluate the environmental contamination and radiation exposure dose rates due to artificial radionuclides in Kawauchi Village, Fukushima Prefecture, the restricted area within a 30-km radius from the Fukushima Dai-ichi Nuclear Power Plant (FNPP), the concentrations of artificial...

  • Fukushima nuclear plant at increased earthquake risk. Allen, Jack // Click Green Newsletter;2/17/2012, Issue 8, p5 

    The article reports the increased earthquake risk at the Fukushima nuclear plant after the earthquake of magnitude 9 that struck Japan on March 11, 2011.

  • Will Fukushima Survivors Be Doubly Victimized With Radiation Sickness and Stigmatization? Wellen, Russ // Foreign Policy in Focus;7/18/2011, p3 

    The article explains the discrimination and infection of the Acute Radiation Syndrome (ARS) on Fukushima nuclear disaster survivors. This problem was addressed through Fukushima area refugees who relocated in Minamisoma, Japan, where they were discriminated by its inhabitants for contracting...

  • Doctors in Japan call for collection of PBSCs from Fukushima workers.  // Hem/Onc Today;5/10/2011, Vol. 12 Issue 9, p24 

    The article reports on the recommendation by five Japanese doctors for the collection and storage of the autologous peripheral blood stem cells (PBSC) of employees working in Fukushima nuclear facility as a precaution against exposure to high levels of radiation.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics