Guidelines for Handling
Spills of Radioactive Material
All authorized
project personnel should be familiar with the applicable parts of Chapter 18
of the Radiation Safety Manual, which contains detailed information about radiation
incidents and emergencies. Spills involving small quantities of radioactive
material should be handled as follows:
- NOTIFY
others in the room or area of the spill. Instruct personnel in the room
at the time of the spill to evacuate the immediate area, but to remain within
the area to prevent the spread of contamination.
- CONTAIN
the spill. Wear a lab coat, disposable laboratory gloves, and other
appropriate protective clothing. Apply absorbent material such as paper
towels, tissues, or absorbent pads to soak up liquids. If the material
is a solid that could become airborne, cover with a protective barrier such
as a tray, empty beaker, or kraft paper. If appropriate, close doors
and windows and turn off ventilation (e.g., hoods) that could cause material
to become airborne.
- DECONTAMINATE AND
MONITOR personnel and the area as follows:
- Monitor
all potentially contaminated personnel with a survey meter in a low background
area. Use appropriate methods of contamination control if contamination
is detected. Monitor for H-3 (tritium) and Fe-55 by wiping the surface
being monitored with a small piece of filter paper or a cotton swab and
counting in a liquid scintillation counter. (H-3 and Fe-55 cannot
be detected with portable survey meters.)
- If contaminated
clothing is detected, it must be removed, bagged, and tagged as soon as
possible. If skin or hair contamination is detected, follow the decontamination
procedures in Section 18.3.4 of the UIC Radiation Safety Manual.
- Permit
only those individuals necessary for the clean-up in the area.
- Wear
appropriate protective apparel (e.g., gloves, lab coat, coveralls, shoe
covers, etc.)
- Monitor
areas that could be contaminated with a survey meter. If the background
is too high, wipe the surface being monitored with a small piece of filter
paper or a cotton swab across and count with the geiger counter in a low
background area. For H-3 (tritium) and Fe-55, monitor by taking wipes
and counting them in a liquid scintillation counter.
- Decontaminate
the areas of greatest contamination first. Work from the edge of the
spill (area of lower concentration) towards the center (area of higher concentration).
Place all contaminated supplies in plastic bags and properly dispose of
them in radioactive waste containers.
- Frequently
monitor hands, shoes, clothing, and exposed skin during decontamination.
Washing gloves while being worn may prevent the spread of contamination
and will minimize the number of glove changes needed.