Comparison of thyroid doses to the public from radioiodine following the Chernobyl and Fukushima accidents

Author:

Shinkarev Sergey M.1

Affiliation:

1. State Research Centre – Burnasyan Federal Medical Biophysical Centre, Federal Medical Biological Agency, Zhivopisnaya St. 46, 123098 Moscow, Russian Federation;

Abstract

Estimates of thyroid doses to the public from radioiodine intake following the accidents at Chernobyl and Fukushima Daiichi nuclear power plants are compared. The basis for thyroid dose estimates after the Chernobyl accident was a large set of measurements of 131I thyroidal content for approximately 400,000 residents in Belarus, Ukraine, and Russia. Due to a lack of direct thyroid measurements after the Fukushima accident (just over 1000 residents were measured), thyroid doses were estimated based on ecological models and are therefore associated with much higher uncertainty than those based on direct thyroid measurements. Thyroid dose estimates for evacuees were up to 50,000 mGy for Chernobyl and up to approximately 100 mGy for Fukushima. This large difference in thyroid dose to the public is mainly due to the different dominant pathways of radioiodine intake: ingestion of fresh, locally produced cows’ milk (Chernobyl) and inhalation of contaminated air (Fukushima).

Publisher

SAGE Publications

Subject

Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,Radiological and Ultrasound Technology

Reference12 articles.

1. INDIVIDUAL THYROID DOSE ESTIMATION FOR A CASE-CONTROL STUDY OF CHERNOBYL-RELATED THYROID CANCER AMONG CHILDREN OF BELARUS—PART I: 131I, SHORT-LIVED RADIOIODINES (132I, 133I, 135I), AND SHORT-LIVED RADIOTELLURIUMS (131MTe AND 132Te)

2. IAEA, 2015a. The Fukushima Daiichi Accident. Radiological Consequences. Technical Volume 4/5. International Atomic Energy Agency, Vienna.

3. IAEA, 2015b. The Fukushima Daiichi Accident. Radiological Consequences. Technical Volume 4/5. Annex VII. International Atomic Energy Agency, Vienna.

4. Chapters 1–5

5. Reassessment of Internal Thyroid Doses to 1,080 Children Examined in a Screening Survey after the 2011 Fukushima Nuclear Disaster

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