Dr. Apostoaei has more than ten years of experience in various aspects of radiological assessment. Using the most recent ICRP models, Dr. Apostoaei is currently developing custom-made computational tools for determination of acute and chronic intakes of plutonium from bioassay data and for estimation of doses from the determined intake of plutonium. This project is organized by the University of Colorado, in support of epidemiological studies for Rocky Flats workers. Dr. Apostoaei is currently involved in the historical dose reconstruction project at the Idaho National Engineering and Environmental Laboratory (INEEL) sponsored by the CDC. Dr. Apostoaei contributed to the reconstruction of doses and the estimation of health effects for individuals exposed to historic releases of 131I from the Oak Ridge Reservation, as well as estimating radiation doses and the risk of cancer from exposure to various radionuclides released to the Columbia River from Hanford Nuclear Facilities and to the Clinch River from the Oak Ridge National Laboratory. As part of these projects, Dr. Apostoaei determined the uncertainties in the dose factors from ingestion of 131I, 137Cs, 106Ru, and 60Co by using the most recent ICRP biokinetic and dosimetric models.
Dr. Apostoaei also developed techniques for quantifying uncertainties in the external doses from exposure to various gamma emitters. Dr. Apostoaei was involved in updating the Radioepidemiological Tables for the National Cancer Institute (NCI) and is one of the main authors of the Interactive Radio-Epidemiological Program (IREP). IREP is currently used to estimate the probability of cancer causation to nuclear workers from exposure to radiation. Dr. Apostoaei has been involved in various international projects for testing radiological assessment models using Chernobyl accident data, under the auspices of the International Atomic Energy Agency (IAEA). He has studied food-chain transport models currently used in the USA. He has participated in validation exercises related to reconstruction of 137Cs doses to people from Czech Republic and Finland exposed in the aftermath of Chernobyl accident, and to reconstruction of 131I doses to people exposed to atmospheric releases from Hanford, Washington.
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