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the claim
The atomic bombings of Hiroshima and Nagasaki caused long-term radiation deaths.
the verdict
INSUFFICIENT LEANING
Recorded sources
6 sources for · 0 against
Is it true that the atomic bombings of Hiroshima and Nagasaki caused long-term radiation deaths?
Unclear. Peer-reviewed reviews of the survivor cohorts report persistent excess radiation-related cancers and other late radiation effects among Hiroshima and Nagasaki survivors, and one study finds a dose-response for myelodysplastic syndromes decades after exposure. None of the items gives figures for long-term radiation deaths, so they support the claim only in part.
Verdict: PARTIAL LEAN · 6 sources for, 0 against · Last checked
Evidence for · 6
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Atomic bombings of Hiroshima and Nagasaki. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Atomic_bombings_of_Hiroshima_and_Nagasaki
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More for · 5
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JM, S., P, R., SR, P., & T, S. (2025). Eighty years of cancer research after the atomic bombings of Hiroshima and Nagasaki.. doi.org. https://doi.org/10.1093/carcin/bgaf071
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K, K., R, S., & P, R. (2025). Eight decades of research on the long-term health effects of radiation in atomic bomb survivors and their offspring.. doi.org. https://doi.org/10.1093/carcin/bgaf047
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M, N., H, K., & Y, A. (2025). Pathological point of view on the atomic bomb-related solid cancers.. doi.org. https://doi.org/10.1093/carcin/bgaf072
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Risk of Myelodysplastic Syndromes in People Exposed to Ionizing Radiation: A Retrospective Cohort Study of Nagasaki Atomic Bomb Survivors. (n.d.). cir.nii.ac.jp. https://doi.org/10.1200/jco.2010.31.3080
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Lessons from Hiroshima and Nagasaki: The most exposed and most vulnerable. (2012). doi.org. https://doi.org/10.1177/0096340212444876
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held for human review18 Oct 2026
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