Table 5.7. Plutonium or 241Am Indicator Levels for Internal Dosimetry Evaluation

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)

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.

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