Bystander exposure involves proximity to another worker's activity generating airborne contamination. In asbestos litigation it commonly involves tradesmen working near insulators or others disturbing asbestos-containing materials.
Exposure levels are typically lower than for the person performing the work.
Alternative Names:
Secondary Occupational Exposure, Bystander Claim
Why it Matters?
Bystander claims extend liability well beyond the trades that directly handled a product, which substantially expands the potential claimant population for any manufacturer. The defense turns on proximity, duration, and whether the specific work generated airborne fiber, since not all handling produces meaningful release. Sampling studies measuring bystander exposure during comparable tasks are the useful evidence.
Frequently Confused with
Related terms
Frequently asked questions
How does bystander differ from take-home exposure?
What defeats a bystander claim?
