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ADVISORY ON UPDATED METHODOLOGY FOR ESTIMATING CANCER RISKS FROM EXPOSURE TO IONIZING RADIATION
ADVISORY ON UPDATED METHODOLOGY FOR ESTIMATING CANCER RISKS FROM EXPOSURE TO IONIZING RADIATION.
This project supports a major risk management initiative to improve the basis on which radiation risk decisions are made. This project reflects an attempt to characterize risks where there are substantial uncertainties. The outcome will improve our ability to assess risks well into the future and will strengthen EPAs overall capability for assessing and managing radiation risks. The BEIR VII report was funded by an interagency group including EPA, DOD, DOE, DHS, and NRC, all of whom are interested and affected parties. Other affected parties include the States, citizens living near or exposed to sources of radiation that are subject to cleanup or control, and the parties responsible for cleanup or control.
The National Academy of Sciences (NAS) published the Biological Effects of Ionizing Radiation (BEIR) committee's report (BEIR VII) on risks from ionizing radiation exposures in 2006. The Committee analyzed the most recent epidemiology from the important exposed cohorts and factored in changes resulting from the updated analysis of dosimetry for the Japanese atomic bomb survivors. To the extent practical, the Committee also considered relevant radiobiological data, including that from the Department of Energy's low dose effects research program. Based on the review of this information, the Committee proposed a set of models for estimating risks from low-dose ionizing radiation. ORIA then prepared a white paper revising the Agency's methodology for estimating cancer risks from exposure to ionizing radiation in light of this report and other relevant information. This is the first product to be developed as a result of the BEIR VII report. We requested that the SAB conduct an advisory during the development of this methodology. The second product to be prepared will be a revised version of the document, "Estimating Radiogenic Cancer Risks", which will describe the updated methodology and present new age-, organ-, and gender-specific risk estimates (see Record Number 174388).