title: ¹³⁷Cs concentrations in foliose lichens within Tsukuba-city as a reflection of radioactive fallout from the Fukushima Dai-ichi Nuclear Power Plant accident.
abstract: (137)Cs concentrations in ten species of foliose lichens collected within Tsukuba-city in August 2013 ranged from 1.7 to 35 kBq/kg. The relationships between (137)Cs in two dominant species, Dirinaria applanata and Physcia orientalis, and the air dose rate (μSv/h) at the sampling sites were investigated. (137)Cs in P. orientalis measured about 1 year after the Fukushima nuclear accident was correlated (r(2) = 0.80) more closely with the air dose rate than those measured after about 2 years (r(2) = 0.65), possibly demonstrating its continued value as a biomonitor to reflect ambient fall-out levels. In contrast, those of Dirinaria applanata were not correlated with the air dose rate in either year.
authors.affiliation: Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan. Electronic address: ohmura-y@kahaku.go.jp.
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Ohmura
authors.affiliation: Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8572, Japan.
authors.forename: Kimiyo
authors.initials: K
authors.lastname: Matsukura
authors.affiliation: Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8572, Japan.
authors.forename: Jun-ichi P
authors.initials: JP
authors.lastname: Abe
authors.affiliation: Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Hosaka
authors.affiliation: Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
authors.forename: Masanori
authors.initials: M
authors.lastname: Tamaoki
authors.affiliation: Headquarters of Fukushima, Japan Atomic Energy Agency, 6-6 Sakae-machi, Fukushima 960-8031, Japan.
authors.forename: Terumi
authors.initials: T
authors.lastname: Dohi
authors.affiliation: Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8572, Japan; Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, Jilin Province 130118, China.
authors.forename: Makoto
authors.initials: M
authors.lastname: Kakishima
authors.affiliation: Department of Archaeological, Geographical & Environmental Sciences, University of Bradford, Bradford BD7 1DP, UK.
authors.forename: Mark R D
authors.initials: MR
authors.lastname: Seaward
mesh_terms: D000396:Air Pollutants, Radioactive / Q000378:metabolism*; D002588:Cesium Radioisotopes / Q000378:metabolism*; D002947:Cities; D062406:Fukushima Nuclear Accident; D007564:Japan; D008011:Lichens / Q000378:metabolism*; D011847:Radioactive Fallout / Q000032:analysis*; D012621:Seasons
chemical_list: D000396:Air Pollutants, Radioactive; D002588:Cesium Radioisotopes; D011847:Radioactive Fallout
keywords: Biomonitoring; Dirinaria applanata; Japan; Physcia orientalis; Radionuclide accumulation