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Dohi, Terumi; Omura, Yoshihito*; Kashiwadani, Hiroyuki*; Fujiwara, Kenso; Sakamoto, Yoshiaki; Iijima, Kazuki
Journal of Environmental Radioactivity, 146, p.125 - 133, 2015/08
Times Cited Count:20 Percentile:52.45(Environmental Sciences)Radiocaesium activity concentrations (Cs, Cs) were measured in parmelioid lichens collected within the Fukushima Prefecture approximately 2 y after the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident. A total of 44 samples consisting of nine species were collected at 16 points within a 60 km radius of the FDNPP. The activity concentration of Cs ranged from 4.6 to 1000 kBq kg and for Cs ranged from 7.6 to 1740 kBq kg. A significant positive correlation was found between the Cs activity concentration in lichens and the Cs deposition density on soil, based on the calculated Spearman's rank correlation coefficients as = 0.90 ( 0.01). The two dominant species, Flavoparmelia caperata and Parmotrema clavuliferum, showed strong positive correlations, for which the r values were calculated as 0.92 ( 0.01) and 0.90 ( 0.01) respectively. Therefore, they are suggested as biomonitoring species for levels of radiocaesium fallout within the Fukushima Prefecture.
Dohi, Terumi; Omura, Yoshihito*; Kashiwadani, Hiroyuki*; Fujiwara, Kenso; Sakamoto, Yoshiaki; Iijima, Kazuki
Raiken, 18(1), p.11 - 13, 2014/12
no abstracts in English
Dohi, Terumi; Omura, Yoshihito*; Kashiwadani, Hiroyuki; Sakamoto, Yoshiaki
no journal, ,
Most lichens grow on rocks and barks, and they are found in terrestrial ecosystems. We will present the radiocesium concentration in lichens sampled in Ibaraki and Fukushima Prefecture, etc. after the accident at Fukushima Daiichi Nuclear Power Station.
Dohi, Terumi; Omura, Yoshihito*; Kashiwadani, Hiroyuki; Fujiwara, Kenso; Iijima, Kazuki
no journal, ,
no abstracts in English