Title |
Thyroid doses for evacuees from the Fukushima nuclear accident
|
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Published in |
Scientific Reports, July 2012
|
DOI | 10.1038/srep00507 |
Pubmed ID | |
Authors |
Shinji Tokonami, Masahiro Hosoda, Suminori Akiba, Atsuyuki Sorimachi, Ikuo Kashiwakura, Mikhail Balonov |
Abstract |
A primary health concern among residents and evacuees in affected areas immediately after a nuclear accident is the internal exposure of the thyroid to radioiodine, particularly I-131, and subsequent thyroid cancer risk. In Japan, the natural disasters of the earthquake and tsunami in March 2011 destroyed an important function of the Fukushima Daiichi Nuclear Power Plant (F1-NPP) and a large amount of radioactive material was released to the environment. Here we report for the first time extensive measurements of the exposure to I-131 revealing I-131 activity in the thyroid of 46 out of the 62 residents and evacuees measured. The median thyroid equivalent dose was estimated to be 4.2 mSv and 3.5 mSv for children and adults, respectively, much smaller than the mean thyroid dose in the Chernobyl accident (490 mSv in evacuees). Maximum thyroid doses for children and adults were 23 mSv and 33 mSv, respectively. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Japan | 164 | 42% |
United States | 8 | 2% |
Korea, Republic of | 5 | 1% |
France | 3 | <1% |
Taiwan | 3 | <1% |
United Kingdom | 2 | <1% |
Moldova, Republic of | 2 | <1% |
Thailand | 2 | <1% |
Netherlands | 2 | <1% |
Other | 9 | 2% |
Unknown | 194 | 49% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 380 | 96% |
Scientists | 10 | 3% |
Science communicators (journalists, bloggers, editors) | 2 | <1% |
Practitioners (doctors, other healthcare professionals) | 1 | <1% |
Unknown | 1 | <1% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 1% |
Germany | 1 | 1% |
Unknown | 72 | 97% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 12 | 16% |
Professor | 8 | 11% |
Student > Bachelor | 8 | 11% |
Student > Ph. D. Student | 7 | 9% |
Researcher | 6 | 8% |
Other | 16 | 22% |
Unknown | 17 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Environmental Science | 12 | 16% |
Medicine and Dentistry | 7 | 9% |
Agricultural and Biological Sciences | 6 | 8% |
Physics and Astronomy | 5 | 7% |
Social Sciences | 5 | 7% |
Other | 17 | 23% |
Unknown | 22 | 30% |