Higher than normal background radiation levels on area monitors and air
Routine radiation and contamination surveys conducted by Radiological
Primary Reasons for Contamination Control
Protection of the worker
Measures to control radioactive contamination are implemented to protect
Minimizing the chance of inhalation or ingestion of radioactive/hazardous
Eliminating or reducing external radiation dose rates.
Reducing worker discomfort by minimizing the use of personal protective
clothing and/or respirators.
2. Radioactive materials may enter the body by:
Inhalation (the most common pathway).
Cuts/wounds (e.g., sharp instrument punctures).
Absorption (skin, mucous membranes, eyes).
Ingestion (biting nails, applying cosmetics, eating, drinking or smoking in the
lab or outside without monitoring or washing hands).
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