t
International Commission on Radiological
Protection.
Abbreviation for meter.
micron:
One-millionth of a meter.
ml:
Milliliter = 0.001 liters.
Maximum permissible concentration (of a
radionuclide) in air.
The average con-
MPCs:
centration above background of a specific
radionuclide to which an individual can
be exposed without exceeding the guidelines.
MPCw:
. Maximum permissible concentration
MPLB:
Maximum permissible lung burden.
yadionuclide)
‘above. )
in water.
(of a
(See definition
MPLD:
Maximum permissible lung dose.
NCRP:
National Council on Radiation Protection
and Measurements.
ay
Abbreviation for nanocurie, which is one-
billionth of a curie, or 1079 curie.
Abbreviation for picocurie, which is one-
millionth of a microcurie, or 10712 curies.
Abbreviation for Quality Factor, which is
assigned on the basis cf a number of censiderations. A quality factor is a
modifyinca factor used in calculation of
dose equivalent whicn accounts for differences
y
in producing biological effects among
various forms of radiation (e.g., alpha,
and X-radiation).
*
Rad:
Unit of absorbed dose
ergs/gram.
(DBD), which is 103
The rad is a measure of the
erergy imparted to matter by ionizing
radiation per unit mass of irradiated
Material at the place of in
cr
—
Radionuclide:
A nuclide
cf
an
element
trat
is
raeéloective.