Contamination of Wild Animals: Microhabitat Heterogeneity and Ecological Factors of Radioactive Cesium Exposure in Fukushima

作者: Ken Ishida

DOI: 10.1007/978-4-431-55828-6_10

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摘要: Wildlife, mainly 69 bird (Aves) species, has been observed in Abukuma Mountains, northeastern Fukushima Prefecture, which is the most radioactively contaminated area, over seasons since July 2011. However, it still unclear whether changes community have caused by radioactive contamination and/or human activity, adding to natural dynamics. The aerial dose rate at survey area was initially estimated be more than 100 μSv/h (mainly 137Cs, 134Cs, and 131I), decreased summer of 2014 0.1–20 137Cs 134Cs). Radioactivity wild habitats heterogeneous among microhabitats dynamic through time seasonal conditions. Microhabitat radio-heterogeneity clearly indicated 2-month-long measurement with 200 dosimeter badges this study. ecological factors related free living (in-situ) wildlife highly are discussed.

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