1. Pollution of radiocesium and radiosilver in wharf roach (Ligia sp.) by the Fukushima Dai-ichi Nuclear Power Plant accident
- Author
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Hisashi Yokoyama, Toshihiro Wada, Hironori Ando, Waka Sato-Okoshi, Nobuo Suzuki, Yuji Oshima, Noriyuki Momoshima, Masato Honda, Suzanne L. Undap, Satoshi Takeda, Hiroyuki Munehara, Toshio Sekiguchi, Tomoki Sunobe, Yohei Shimasaki, and Xuchun Qiu
- Subjects
Pollution ,Health, Toxicology and Mutagenesis ,media_common.quotation_subject ,010501 environmental sciences ,010403 inorganic & nuclear chemistry ,01 natural sciences ,Analytical Chemistry ,law.invention ,law ,Radioactive contamination ,Nuclear power plant ,Ligia ,Radiology, Nuclear Medicine and imaging ,Spectroscopy ,0105 earth and related environmental sciences ,media_common ,Radionuclide ,Wharf ,biology ,Public Health, Environmental and Occupational Health ,biology.organism_classification ,0104 chemical sciences ,Nuclear Energy and Engineering ,Environmental chemistry ,Environmental science ,Bioindicator ,Nuclear chemistry - Abstract
Radionuclide concentrations in wharf roaches inhabiting coastal areas of Honshu, Japan, were investigated in October 2011 and June 2012. Relative high concentrations of 110mAg (2.1–127 Bq kg-wet−1), 134Cs (2.6–61 Bq kg-wet−1), and 137Cs (3.5–92 Bq kg-wet−1) were detected in specimens from the eastern Honshu areas. Significantly lower 137Cs concentrations (0.7–1.6 Bq kg-wet−1) were detected in specimens from western and northern Honshu. The decay-corrected 137Cs concentration was significantly inversely correlated with the distance from the Fukushima Dai-ichi Nuclear Power Plant. Thus, wharf roach may serve as a good bioindicator for monitoring radioactive contamination of its habitats.
- Published
- 2016