What is a Hazardous Noise Area Survey?

• A. A survey used to define work areas where noise exposures are assumed hazardous based on routine operations
• B. A survey to identify chemical hazards in the workspace
• C. A survey to measure visual lighting levels
• D. A survey to assess ergonomic risk factors

Answer: (A)

A hazardous noise area survey is a screening tool that defines work zones where noise exposures are assumed to be hazardous based on how the job is normally performed. It uses knowledge of routine operations and typical noise sources to flag areas that likely exceed exposure limits, guiding where to focus formal noise measurements, monitoring, and controls such as hearing protection or engineering changes. It’s not about chemicals, lighting, or ergonomic risks—those would be identified by surveys specific to those hazards. This type of survey helps allocate resources efficiently by highlighting zones that warrant dosimetry and potential control measures before detailed measurements are done.