Letter to B Wachholz, Subject: Updated Draft Form Dose Assessments for Both Enewetak and Bikini Atolls (Encl: as Stated)

Page 1

Department of Energy Office of Technical Impact, Office of Environment IJWVRENCE LIVERMORE LABORATORY Biomedical & Environmental Sciences Divisions Enclosed are the updated draft form dose assessments for both Enewetak and Bikini Ato~~s. Neither dose summary includes the lung and bone doses via inhalation pathway because we base the inhalation assessment on the data which EG&G is in the process of correcting. The target organ for transuranics via the inhalation pathway is not bone marrow or wholebod but endosteal cells and cortical bonet ~refore, the doses from 137Cs, 90Sr and the transuranics are not I emphasize again that the assumed dietary intake is very critical to the final calculated doses. We have used for both the Enewetak and Bikini assessment the dietary results obtained from the Ujelang Dietary Survey (UDS). We did this because of the similarity of Bikini and Enewetak Atolls and the similarity in the history and current customs of the people. The diet survey was presented in detail in the draft report The UDS is the most complete dietary assessment currently available to us. However, from various literature reports and from preliminary results from Dr. Jan Naidu’s work, it is very clear that dietary intake is very specific to a given region or atoll and greatly reflects the customs developed over the past 20 or 30 years. In summary, the diet is a very important and variable phase of the dose assessment; people who read and interpret our results should be aware of the assumed diet which is an integral and critical part of the Terrestrial & Atmospheric Sciences

Page 2

Table 30. 30 and 50 Year integral doses in rem for adult females under normal and famine dietary conditions for the Engebi (Janet) Island living pattern. 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow” Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 3

Table 31. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Northeast Quadrant of Engebi (Janet) Island living pattern. 30 year Integral Dose, Rem Wholebody Bone Marrow 50 year Integral Dose, Rem Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 4

Table 32. 30 and 50 year integral doses in rem for adult females under normal and conditions for the Southeast Quadrant of Engebi (Janet) Island living pattern. 30 year Integral Dose, Rem SO year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine *Mine~-1 bone dose rather than bone marrow; these doses are not included in the tOtd.

Page 5

50 year integral dose in rem for adult females under normal and dietary conditions for the Southwest Quadrant of Engebi (Janet) 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 6

Table 34. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Northwest quadrant of Engebi (Janet) Island living pattern. 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 7

Table 35. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Engebi (Janet) Island/Northern Island 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal I?aminp Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 8

Table 36; 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Engebi (Janet) Island/Southern Island 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway W~olebody Bone Marrow Wholebody Bone Marrow Nuc 1ide lJormal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 9

Table 37.” 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Aomon (Sally) Island living pattern. 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 10

Table 38. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Aomon (Sally) Island/Northern Islands 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 11

Table 39.. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Bijire (Tilda) Island living pattern. 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Normal Famine Normal Famine Normal Famine Normal Famine *Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 12

Table 40. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Bijire (Tilda) Island/Northern Islands 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 13

Table 41. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Southern Islands living pattern. 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the

Page 14

Table 42. 30 and 50 year integral doses in rem for adult females under normal and famine dietary conditions for the Southern Islands/Northern Islands living 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 15

Table 43. 30 and 50 year integral doses in rem for a child under normal and famine dietary conditions for the Engebi (Janet) Island living 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine’ Normal Famine Normal Famine ** It is assumed that the child is born at the time of return and lives his entire life span on Engebi Island * Mineral bone dose rather than bone marrow; these doses are not included in the total.

Page 16

Table 44. 30 and 50 year integral doses in rem for a child** under normal and conditions for the Engebi (Janet) Island living 30 year Integral Dose, Rem 50 year Integral Dose, Rem Pathway Wholebody Bone Marrow Wholebody Bone Marrow Nuclide Normal Famine Normal Famine Normal Famine Normal Famine * Mineral bone dose rather than bone marrow; these doses are not included in the total. ** It it assumed that the child is born 8 years after return and lives his entire life span on Engebi Island.