Publications by authors named "Kunihiko Shinohara"
Article Synopsis
- A study evaluated levels of plutonium (239,240Pu) and uranium (U) in bone samples from residents near the Semipalatinsk nuclear test site, using over 70 autopsy samples from individuals aged 30 to 86.
- The mean concentrations found were 0.050 mBq/g-ash for 239,240Pu and 0.28 mBq/g-ash for U, with the plutonium levels comparable to those from global fallout in the early 1980s.
- The estimated total intake of plutonium over 45 years was 10 Bq, corresponding to an effective dose of 0.2 mSv, while the annual intake of uranium was estimated at 30 Bq,
The regional environmental radiological effects were assessed for the past 25-year operation of the Tokai Reprocessing Plant (TRP). The assessment was basically performed with the environmental radiological monitoring data around the TRP. For the environmental monitoring, various kinds of terrestrial and marine samples including air dust, surface soil, polished rice grain, leafy vegetable, milk, seawater, seabed sediments, fish, shellfish and seaweed were collected in the surrounding environment of the TRP.
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