Which condition most increases secondary exposure risk to bystanders during OC spray deployment?

• A. Deploying outdoors with wind away from people.
• B. Adequate PPE to reduce exposures.
• C. Close proximity to spray in enclosed spaces.
• D. Training in safe deployment.

Answer: (C)

Secondary exposure for bystanders mainly comes from how the spray plume behaves in the environment. When OC spray is released in close quarters and in an enclosed space, the droplets stay concentrated and linger because there’s little air movement to dilute or remove them. People nearby can inhale or have the spray settle on skin, eyes, or mucous membranes, leading to irritation even if they aren’t the intended target. In open air with a breeze blowing away from others, the plume disperses more quickly, reducing bystander exposure. PPE and training help protect the wearer and reduce mishandling, but they don’t change the fact that being in very close, enclosed proximity lets the spray affect bystanders more.