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Page Title:
Air monitoring (10 CFR 835.403) |
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|  Radiological Assessor Training
DOE-HDBK-1141-2001
Instructor's Guide
DOE Laboratory Accreditation for
Compliance due date 1-1-02.
Radiobioassay is required for internal dose
monitoring programs implemented to
demonstrate compliance with 10 CFR 835.
5. Air monitoring (10 CFR 835.403)
Measurements of radioactivity concentrations
in the ambient air of the workplace shall be
performed as follows:
Air sampling shall be performed in
occupied areas where an individual is
likely to receive an exposure of 40 DAC-
hrs or more in a year (i.e. an annual
intake of 2 percent or more of the specific
ALI value) for the mixture of isotopes.
Samples shall be taken as necessary to
characterize the levels or concentration of
airborne radioactive material when
respirators are worn for radiation
protection purposes.
Real-time air monitoring shall be
performed when there is a need to alert
potentially exposed individuals to
unexpected increases in airborne
radioactivity levels such that immediate
action is necessary in order to minimize or
stop inhalation exposures.
Module 2 - 11
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