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Page Title: Table 5.7. Plutonium or 241Am Indicator Levels for Internal Dosimetry Evaluation
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DOE-STD-1128-98
Guide of Good Practices for Occupational Radiological Protection in Plutonium Facilities
Thus, the ALIs found in an in ICRP Publication 61 (1991a) and used in an in the CEC/DOE
Guidebook noted above are those which would provide a CEDE of 2-rem/y instead of current U.S.
regulations of 5-rem/y.
Guidance in an in the CEC/DOE Guidebook can be summarized as follows:
-- When the estimated intake is below one ALI, treatment should not be considered.
-- When the estimated intake is between 1 and 10 times the ALI, treatment should be considered.
Under these situations, short-term administration will usually be appropriate, except for intake of
materials poorly transported from the lung (class Y).
Table 5.7. Plutonium or 241Am Indicator Levels for Internal Dosimetry Evaluation
Indicator
Notification Level
Nasal or mouth smears
Detectable activity
Facial contamination
200 dpm
(direct measurement)
Skin breaks or blood smears
Any skin break while handling material other than sealed sources
Head, neck contamination
2,000 dpm
Contamination in an in respirator
Detectable activity inside respirator after use
Hands, forearms, clothing
10,000 dpm
contamination(a)
Airborne radioactivity
Acute intake equivalent to 40 DAC-hours after accounting for
respiratory protection factor
(a)
Clothing contamination levels apply to exposure without respiratory protection, such as on inner coveralls or
personal clothing.
Plutonium or 241Am Contamination Levels for Notification of Occupational Medicine
Table 5.8.
Physician
Indicator
Medical Notification Level, dpm
Nasal or mouth smears
1,000
Facial contamination
25,000
Skin breaks or wounds
100
-- When the estimated intake exceeds 10 times the ALI, then extended or protracted treatment
should be implemented, except for materials poorly transported from the lung.
5-36


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