Three types of contamination (RAF) are Removable, Airborne, and Fixed. Which option is NOT a type?

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Multiple Choice

Three types of contamination (RAF) are Removable, Airborne, and Fixed. Which option is NOT a type?

Explanation:
Understanding how contamination is categorized helps determine the correct handling approach. Removable contamination is the portion you can physically wipe off or wash away from surfaces. Fixed contamination is attached to the surface so tightly that ordinary cleaning won’t remove it. Airborne contamination consists of particles suspended in the air, posing inhalation and inhalation-related risks and requiring controls like ventilation and respirators. Shielding, however, is a protective measure used to reduce exposure by absorbing or blocking radiation, not a way contamination itself exists. So shielding is not a type of contamination.

Understanding how contamination is categorized helps determine the correct handling approach. Removable contamination is the portion you can physically wipe off or wash away from surfaces. Fixed contamination is attached to the surface so tightly that ordinary cleaning won’t remove it. Airborne contamination consists of particles suspended in the air, posing inhalation and inhalation-related risks and requiring controls like ventilation and respirators. Shielding, however, is a protective measure used to reduce exposure by absorbing or blocking radiation, not a way contamination itself exists. So shielding is not a type of contamination.

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