Which category includes accumulation of hazard exposure such as steady-state noise with 8-hour TWA up to 85 dBA?

• A. Auditory Effects
• B. Non-Auditory Effects
• C. Occupational Safety
• D. Potentially Hazardous Noise

Answer: (D)

This question tests how noise exposure is categorized based on the risk it poses to hearing over time. When noise is steady and averages to 85 dBA over an 8-hour work shift, it meets the OSHA permissible exposure limit, meaning there is a real potential for hearing damage if this level is sustained without controls. That combination—steady-state exposure at a level at which damage could accumulate—fits the category of potentially hazardous noise, which flags exposures that could harm hearing if not mitigated.

Auditory Effects describe actual damage like hearing loss or tinnitus that results after exposure, not the classification of the exposure itself. Non-Auditory Effects cover other health impacts noise can have but aren’t the specific hazard labeling here. Occupational Safety is a broad umbrella term and doesn’t pinpoint the specific type of noise hazard. So the scenario is best categorized as potentially hazardous noise because it reflects a dose-related risk to hearing over time.