Techniques to monitor the individual worker at the work site include:
-- Frequent/routine surveys of gloves
-- Exit surveys
-- Nasal swipes
-- Personal air sampling.
4.3.2 Monitoring Program
Instrumentation shall be provided and persons entering a plutonium work station
shall be required to survey themselves at established frequencies. The requirements
for radioactive contamination control and monitoring are found in 10 CFR 835.1102.
As a minimum, workers should survey their gloves and coverall sleeves each time
they are withdrawn from a glove box (or similar containment system) and after each
glove replacement or bag-out operation.
Personnel monitoring for contamination should be mandatory at the egress from
controlled areas and should be conducted in a verifiable manner. Assurance should be
provided that personnel are monitored prior to breaks, meals, or exits from the plant
site. Portal monitors, hand-and-shoe counters, and/or portable survey instruments
may be used for this purpose. If employees are instructed to perform self-monitoring,
the equipment should be set up in a "go/no-go" mode and employees should be
clearly instructed in the required actions to take if predetermined action levels are
exceeded. Frequent audits should be performed to verify that controls are adequate.
Limiting the number of egress points and controlling personnel movement can
minimize the numbers of locations where positive control of personnel monitoring
must be maintained.
4.3.3 Protective Clothing
Various types of protective clothing, including laboratory coats, shoe covers, gloves,
coveralls, plastic or rubber suits, and air-purifying or atmosphere-supplying
respiratory protective equipment, may be required for operations with transuranic
radionuclides. The use of company-issue shoes and clothing for employees with work
assignments in process areas can be a major aid in contamination control. Recently,
some facilities are using disposable anti-contamination clothing. This may be a cost
savings from a handling standpoint. However, disposal costs must be considered.
Additionally, consideration should be given to the potential for heat stress.