What is loose surface contamination?

• A. It adheres tightly to surfaces.
• B. It is always airborne.
• C. It does not bond to surfaces, making it easy to spread.
• D. It is fixed to the surface.

Answer: (C)

Loose surface contamination is contamination that isn’t firmly bonded to a surface, so it can be easily dislodged or transferred by touch, handling, or even air movement. Because it isn’t tightly attached, it can be spread from one item to another or onto skin, which is why it’s considered easy to spread. This contrasts with fixed contamination, which is tightly bound to a surface and not readily transferred. So the description that it does not bond to surfaces, making it easy to spread, best captures what loose surface contamination means. The other ideas describe strongly attached contamination, conditions that aren’t inherent to the surface (like being always airborne), or being fixed to a surface, which are not the defining traits of loose surface contamination.