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Frequently Asked Questions

Frequently Asked Questions about the Atomic-bomb Survivor Research Program
The following questions have been chosen from among many that RERF researchers are often asked about the study of long-term health effects in the survivors of the atomic bombings of Hiroshima and Nagasaki. We also have posted “Answers to frequently asked questions relating to the accident at the Fukushima Daiichi nuclear power plant” on our “Fukushima” page.

We welcome your questions and comments at Research Questions. Click here to see the RERF Glossary.

  How many people died as a result of the atomic bombings?
  How many cancers in atomic-bomb survivors are attributable to radiation?
  What is the relationship of radiation to cancer occurrence?
  Are radiation-induced cancers still occurring among atomic-bomb survivors?
  What health effects other than cancer have been seen among the atomic-bomb survivors?
  What health effects have been found among persons who were exposed before birth?
  What health effects have been seen among the children born to atomic-bomb survivors?
  How many atomic-bomb survivors are included in the group being studied by RERF and how were they chosen for this study?
  What percentage of the original atomic-bomb survivor study population is still alive?
  How is information about the atomic-bomb survivors obtained?
  What is "significant" radiation exposure?
  Are Hiroshima and Nagasaki still radioactive?
  Please explain the contents of RERF's "A Brief Description."