title: Radionuclide analysis on bamboos following the Fukushima nuclear accident.
abstract: In response to contamination from the recent Fukushima nuclear accident, we conducted radionuclide analysis on bamboos sampled from six sites within a 25 to 980 km radius of the Fukushima Daiichi nuclear power plant. Maximum activity concentrations of radiocesium (134)Cs and (137)Cs in samples from Fukushima city, 65 km away from the Fukushima Daiichi plant, were in excess of 71 and 79 kBq/kg, dry weight (DW), respectively. In Kashiwa city, 195 km away from the Fukushima Daiichi, the sample concentrations were in excess of 3.4 and 4.3 kBq/kg DW, respectively. In Toyohashi city, 440 km away from the Fukushima Daiichi, the concentrations were below the measurable limits of up to 4.5 Bq/kg DW. In the radiocesium contaminated samples, the radiocesium activity was higher in mature and fallen leaves than in young leaves, branches and culms.
authors.affiliation: Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba, Japan. takumi.higaki@gmail.com
authors.forename: Takumi
authors.initials: T
authors.lastname: Higaki
authors.forename: Shogo
authors.initials: S
authors.lastname: Higaki
authors.forename: Masahiro
authors.initials: M
authors.lastname: Hirota
authors.forename: Kae
authors.initials: K
authors.lastname: Akita
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Hasezawa
mesh_terms: D002588:Cesium Radioisotopes / Q000032:analysis*; D007564:Japan; D018788:Radioactive Hazard Release; D031787:Sasa / Q000737:chemistry*
chemical_list: D002588:Cesium Radioisotopes