Abstract
Accumulations of radionuclides in marine macroalgae (seaweeds) resulting from the Fukushima 1 Nuclear Power Plant (F1NPP) accident in March 2011 have been monitored for two years using high-purity germanium detectors. Algal specimens were collected seasonally by snorkeling at Nagasaki, Iwaki, Fukushima Prefecture (Pref.), Japan, ca. 50 km perimeter from the F1NPP. Additional collections were done at Soma, Hironocho, Hisanohama and Shioyazaki in Fukushima Pref. as well as at Chiba Pref. and Hyogo Pref. as controls. In May 2011, specimens of most macroalgal species showed 137Cs levels greater than 3,000 Bq kg−1 at Shioyazaki and Nagasaki. The highest 137Cs level recorded 7371.20 ± 173.95 Bq kg−1 in Undaria pinnatifida (Harvey) Suringar on 2 May 2011, whereas seawater collected at the same time at Shioyazaki and Nagasaki measured 8.41 ± 3.21 and 9.74 ± 3.43 Bq L−1, respectively. The concentration factor of marine macroalgae was estimated to be ca. 8–50, depending on taxa and considering a weight ratio of wet/dry samples of ca. 10. 137Cs level declined remarkably during the following 5–6 months. In contrast, the 137Cs level remained rather stable during the following 12–16 months, and maintained the range of 10–110 Bq kg−1. Contamination was still detectable in many samples in March 2013, 24 months after the most significant pollution.
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References
Bailly du Bois P, Laguionie P, Boust D, Korsakissok I, Didier D, Fiévet B (2012) Estimation of marine source-term following Fukushima Dai-ichi accident. J Environ Radioact 114:2–9
Bold HC, Wynne MJ (1985) Introduction to the Algae: structure and reproduction, 2nd edn. Prentice-Hall, Englewood Cliffs, p 720
Buesseler K, Aoyama M, Fukasawa M (2011) Impacts of the Fukushima nuclear power plants on marine radioactivity. Environ Sci Tech 45:9931–9935
Caliceti M, Argese E, Sfriso A, Pavoni B (2002) Heavy metal contamination in the seaweeds of the Venice lagoon. Chemosphere 47:443–454
Coughtrey PJ, Thorne MC (1983) Radionuclide distribution and transport in terrestrial and aquatic ecosystems. A critical review of data, vol 1. A.A. Balkema, Rotterdam
Estournel C, Bosc E, Bocquet M, Ulses C, Marsaleix P, Winiarec V, Osvath I, Nguyen C, Duhaut T, Lyard F, Michaud H, Auclair F (2012) Assessment of the amount of Cesium-137 released into the Pacific Ocean after the Fukushima accident and analysis of its dispersion in Japanese coastal waters. J Geophys Res 117:C11. doi:10.1029/2012JC007933
Graham LE, Wilcox LW (2000) Algae. Prentice-Hall, London
Haritonidis S, Malea P (1999) Bioaccumulation of metals by the green alga Ulva rigida from Thermaikos Gulf, Greece. Environ Poll 104:365–372
Hori T (1993) An illustrated atlas of the life history of algae. In: Brown and red algae, vol 2. Uchida Rokakuho, Tokyo
Hori T (1994) An illustrated atlas of the life history of algae. In: Green algae, vol 1. Uchida Rokakuho, Tokyo
Ikeuchi Y (2003) Temporal variations of 90Sr and 137Cs concentrations in Japanese coastal surface seawater and sediments from 1974 to 1998. Deep Sea Res 50:2713–2726
International Atomic Energy Agency (2004) Sediment distribution coefficients and concentration factors for biota in the marine environment. IAEA Technical Reports Series No. 422. IAEA Vienna
Kanda J (2013) Continuing 137Cs release to the sea from the Fukushima Dai-ichi Nuclear Power Plant through 2012. Biogeosci Discuss 10:3577–3595
Kanter U, Hauser A, Michalke B, Dräxl S, Schäffner AR (2010) Caesium and strontium accumulation in shoots of Arabidopsis thaliana: genetic and physiological aspects. J Exp Bot 61:3995–4009
Kawamura H, Kobayashi T, Furuno A, Ishikawa Y, Nakayama T, Shima S, Awaji T (2011) Preliminary numerical experiments on oceanic dispersion of 131I and 137 Cs discharged into the ocean because of the Fukushima Daiichi nuclear power plant disaster. J Nucl Sci Technol 48:1349–1356
Linsley G, Sjoblom K, Cabianca T (2005) Overview of point source of anthropogenic radionuclides in the oceans, vol. 6, chapter 4, issues 17–21, 109–138
Mimura T, Mimura M, Komiyama C, Miyamoto M, Kitamura A (2014) Measurements of gamma (γ)-emitting radionuclides with a high purity germanium detector: the methods and reliability of our environmental assessments on the Fukushima 1 Nuclear Power Plant accident. J Plant Res 127 (in this issue). doi:10.1007/s10265-013-0594-y
Miyazawa Y, Masumoto Y, Varamov SM, Miyama T, Takigawa M, Honda M, Seino T (2012) Inverse estimation of source parameters of oceanic radioactivity dispersion models associated with the Fukushima accident. Biogeosci Discuss 9:13783–13816
Morita T, Fujimoto K, Kasai H, Yamada H, Nishiuchi K (2010) Temporal variations of 90Sr and 137Cs concentrations and the 90Sr/137Cs activity ratio in marine brown algae, Undaria pinnatifida and Laminaria longissima, collected in coastal areas of Japan. J Environ Monit 12:1179–1186
Morris ER, Rees DA, Robinson G (1980) Cation-specific aggregation of carrageenan helices: domain model of polymer gel structure. J Mol Biol 138:349–362
Nakanishi T, Aono T, Yamada M, Kusakabe M (2010) Temporal and spatial variations of 137Cs in the waters off a nuclear fuel reprocessing facility in Rokkasho, Aomori, Japan. J Radioanal Nucl Chem 283:831–838
Pentreath RJ (1976) Monitoring of radionuclides. Fish Tech Paper 150, FAO Rome
Povinec PP, Hirose K, Honda T, Ito T, Scott EM, Togawa O (2004) Spatial distribution of 3H, 90Sr, 137Cs and 239,240Pu in surface waters of the Pacific and Indian Oceans–GLOMARD database. J Environ Radioact 76:113–137
Tateda Y, Koyanagi T (1994) Concentration factors for Cs-137 in marine algae from Japanese coastal waters. J Radiat Res 35:213–221
Tsumune D, Tsubono T, Aoyama M, Hirose K (2012) Distribution of oceanic 137Cs from the Fukushima Dai-ichi nuclear power plant simulated numerically by a regional ocean model. J Environ Radioact 111:100–108
Yamada M, Yamamoto K, Ushihara Y, Kawai H (2007) Variation in metal concentrations in the brown alga Undaria pinnatifida in Osaka Bay, Japan. Phycol Res 55:222–230
Zhu Y-G, Smolders E (2000) Plant uptake of radiocaesium: a review of mechanisms, regulation and application. J Exp Bot 51:1635–1645
Acknowledgments
We are grateful to E.C. Henry (Reed Mariculture) for his valuable comments on the manuscript, Chiyo Komiyama and Tomoko Kotani (Kobe University) for technical support in the measurements of radionuclides and data analyses, Toshiaki Wada, Tadashi Iwasaki, Naoto Hirakawa (Fukushima Prefectural Fisheries Experimental Station), Masataka Ohta (Marine Ecology Research Institute) and Norio Kikuchi (Natural History Museum and Institute, Chiba) for assistance in the field collections. The project was supported by the research grant of Organization of Advanced Science and Technology, Kobe University.
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Fukushima Daiichi Nuclear Power Station is cited as Fukushima 1 Nuclear Power Plant in the present manuscript.
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Kawai, H., Kitamura, A., Mimura, M. et al. Radioactive cesium accumulation in seaweeds by the Fukushima 1 Nuclear Power Plant accident—two years’ monitoring at Iwaki and its vicinity. J Plant Res 127, 23–42 (2014). https://doi.org/10.1007/s10265-013-0603-1
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DOI: https://doi.org/10.1007/s10265-013-0603-1