TABLE II
Existing Exvosure Guidelines for Non-Occupational Exposure
that Apsly to Pu-239 in Insoluble Form*
Individual
MPLD
1.5
(ICRP,
NCRP,
(0.5)
rem/yr
SPC
10722 (3x10-13) uci/mt
=
(ICRP, AEC)
(0.17)
ren/yr
:
0.0016
r}
a
0
0.5
FRC)
MPL3B
*
Population Averace
(0.0005) uCi
0.0005
(0.90017)
uCi
310723 (10713) uci/ml
MPLD values in parentheses refer to the latest
reconmendations cZ the NCRP,.
The MPLB and MPCa values in
parentheses corresoond to the new NCRP dose recommendations.
tv,
Caloulatins tne Dose Due to Insoluble Aloha-finmitters
Tne ourpose of this section is to examine the assumotions
in the radiation standards above that are inappropriate when
apclied to insoluble alpha-emitting particulates such as
aerosols of puG3.
The assumptions are introduced through a
tiew of basic definitions of radiation dose and the factors
gas to calculate the dose.
The Dose
Equivalent
when an X-ray or the radiation emitted by a radionuclide
through
tissue
it
transfers anergy
to
the
cells
in
q
*
3248