Radiation Exposures and Compensation of Victims of French Atmospheric Nuclear Tests in Polynesia Sébastien Philippe1,* Sonya Schoenberger2,3, Nabil Ahmed4 1 Program on Science and Global Security, Princeton University, 221 Nassau St, 2nd floor, Princeton NJ 08540, USA 2 Department of History, Stanford University, 450 Serra Mall Bldg 200, Stanford, CA 94305, USA 3 Yale Law School, 127 Wall St, New Haven, CT 06511, USA 4 Faculty of Architecture and Design, Norwegian University of Science and Technology, Alfred Getz vei 3, 7491 Trondheim, Norway *To whom correspondence should be addressed:
[email protected] Abstract Between 1966 and 1974, France conducted 41 atmospheric nuclear weapon tests in Polynesia. Radioactive fallout impacted downwind atolls and islands leading to the external and internal exposure of the local populations to ionizing radiation. By law, individuals who were exposed to radiation in the context of these tests can file compensation claims with the French government if they develop certain radiogenic cancers. A claimant who meets the basic eligibility criteria (place, time, and type of disease) automatically benefits from the presumption of a causal link between radiation exposure and the development of their illness, unless the exposure is deemed too low. Since 2017, an effective dose threshold of 1 mSv per year has been used in the claims adjudication process. Decisions as to whether claimants have met this 1 mSv threshold in a given year are often made on the basis of data from government dose reconstruction studies carried out in 2005 and 2006. Using new information available from recently declassified documents on the radiological impact of French atmospheric nuclear tests in Polynesia, as well as atmospheric transport modeling of radioactive fallout, this article shows that maximum doses to the public for key atmospheric tests may have been underestimated by factors of 2 to 10 and estimates that the total population exposed above the compensation threshold of 1 mSv/yr could be greater than ~110,000.