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This database will be of help to those who intend to estimate the intake and the effective dose from bioassay measurements.

Users can obtain a graph showing:
(a)predicted values of the retention, urinary excretion or faecal excretion of radionuclides, or
(b)committed effective doses (CED) per measured radioactivity in bioassay measurements
as a function of time following single intake via inhalation or ingestion by workers or by members of the public.

To Database Search Form


Now, we release the PC software "MONDAL3", by which we can estimate the intake and the effective dose from bioassay measurements.
NOTICE for users of "MONDAL3": Please download the fixed data file for the correction, and preserve the superscription in "MData" folder under the directory that installs "MONDAL3". fixed data file
The models and parameter values used for the calculation are:
  • respiratory tract model: ICRP Publication 66(1)
  • biokinetic models: ICRP Publications 30(2-4), 56(5), 67(6), 69(7), 71(8)
  • GI tract model: ICRP Publication 30(2); if f1 = 1 is given, 0.99 was taken for calculation, which is in line with the ICRP publications.
The subjects are:
  • the ICRP reference worker(1)
  • the ICRP reference members of the public(5)
    ·3 mo: from 0 to 1 y of age
    ·1 y: from 1 y to 2 y
    ·5 y: more than 2 y to 7 y
    ·10 y: more than 7 y to 12 y
    ·15 y: more than 12 y to 17 y
    ·Adult: more than 17 y
The characteristics of the aerosol particles treated are:
  • AMAD = 0.1, 0.3, 1.0, 3.0, 5.0 and 10 µm for workers
  • AMAD = 1.0 µm for members of the public
  • particle density = 3 g cm-3
  • particle shape factor = 1.5
  • geometric SD: from the eqn. (16) of ICRP Publication 66(1)
The radionuclides selected are:
    H-3, P-32, Cr-51, Mn-54, Fe-59, Co-57, Co-58, Co-60, Zn-65, Rb-86, Sr-85, Sr-89, Sr-90, Zr-95, Ru-106, Ag-110m, Sb-124, Sb-125, I-125, I-129, I-131, Cs-134, Cs-137, Ba-140, Ce-141, Ce-144, Hg-203, Ra-226, Ra-228, Th-228, Th-232, U-234, U-235, U-238, Np-237, Pu-238, Pu-239, Pu-240, Am-241, Cm-242, Cm-244 and Cf-252.
To obtain the committed effective dose(CED) per measured radioactivity in bioassay measurements, the reciprocal of the predicted value of the monitoring quantity was multiplied by the dose coefficient given in ICRP CD-ROM(9)

References
  • (1) ICRP;ICRP Publication 66, Ann. ICRP, 24(1-3), Elsevier Science Ltd., Oxford (1994).
  • (2) ICRP;ICRP Publication 30 Part1, Ann. ICRP, 2(3/4), Pergamon Press, Oxford (1979).
  • (3) ICRP;ICRP Publication 30 Part2, Ann. ICRP, 4(3/4), Pergamon Press, Oxford (1981).
  • (4) ICRP;ICRP Publication 30 Part4, Ann. ICRP, 19(3/4), Pergamon Press, Oxford (1988).
  • (5) ICRP;ICRP Publication 56, Ann. ICRP, 20(2), Elsevier Science Ltd., Oxford (1989).
  • (6) ICRP;ICRP Publication 67, Ann. ICRP, 23(3/4), Elsevier Science Ltd., Oxford (1993).
  • (7) ICRP;ICRP Publication 69, Ann. ICRP, 25(1), Elsevier Science Ltd., Oxford (1995).
  • (8) ICRP;ICRP Publication 71, Ann. ICRP, 25(3-4), Elsevier Science Ltd., Oxford (1995).
  • (9) ICRP;The ICRP Database of Dose Coefficients: Workers and Members of the Public Ver.1, Elsevier Science Ltd.(1998).

The database has been constructed by N.Ishigure, T.Nakano, H.Enomoto and M.Matsumoto; all are staffs of Environmental Radiation Protection Research Group of NIRS.

The authors wish to thank the members of the ICRP Task Groups on Internal Dosimetry (INDOS) and Dose Calculations (DOCAL), and the Working Party on Interpretation of Bioassay Data for their valuable discussion at the INDOS Meeting in Pierrelatte, France.

If you have any questions or comments, please send to mondal@qst.go.jp