Annals of the ICRP

The 2007 Recommendations (Publication 103, ICRP, 2007) introduced changes to 49 the radiation and tissue weighting factors used in calculation of effective dose. In addition, 50 Publication 103 clarified the need for separate calculation of equivalent dose to males and 51 females and sex-averaging in the calculation of effective dose (ICRP, 2007) and adopted the 52 use of reference anatomical computational phantoms, in place of the composite mathematical 53 models that have been used previously. 54 These substantial changes implied a revision of the dose coefficients for internal exposure, 55 published previously in the Publication 30 series (ICRP, 1979, 1980, 1981, 1988b). This 56 work was performed by Committee 2 and its Task Groups INDOS and DOCAL. 57 This report is the second in a series of documents replacing the Publication 30 series and 58 Publication 68 (ICRP, 1994b) and providing revised dose coefficients for occupational 59 intakes of radionuclides (OIR) by inhalation and ingestion. It provides data on individual 60 elements and their radioisotopes, including biokinetic data and models, dose coefficients and 61 data for bioassay interpretation. Electronic discs accompanying this series give extensive 62 additional information. 63 This second report in the series provides the above data for the following elements : 64 Hydrogen (H), Carbon (C), Phosphorus (P), Sulphur (S), Calcium (Ca), Iron (Fe), Cobalt 65 (Co), Zinc (Zn), Strontium (Sr), Yttrium (Y), Zirconium (Zr), Niobium (Nb), Molybdenum 66 (Mo) and Technetium (Tc). 67 The current version, posted for public consultation, contains only the biokinetic data and 68 the models. The total set of dose coefficients and data for bioassay interpretation will be 69 included in the final version. 70 © 201X ICRP. Published by Elsevier Ltd. 71 72