Noise survey vs workplace noise risk assessment
A noise survey collects sound evidence. A risk assessment interprets exposure, identifies affected workers, compares action and limit values, and decides what controls and follow-up are needed. One may support the other, but they are not interchangeable labels.
Check my situationSpecify the output you actually need
An area sound map can locate noisy plant but does not by itself show each worker’s daily or weekly exposure. A suitable assessment needs task duration, worker patterns, relevant peaks and clear actions.
- Does the proposal calculate or reliably estimate personal exposure?
- Does it explain representative tasks, shifts, peaks and uncertainty?
- Will the report identify controls, owners, review triggers and remaining information gaps?
What to do next: Ask the provider to state exactly how survey measurements feed the risk assessment and which outputs are included. If the offer ends at a map or raw decibel table, request a separate assessment and action-plan price.
Survey
A survey may measure sources, task levels, locations or personal dosimetry. Method and sampling should reflect actual work. Measurements are evidence, not the legal conclusion on their own.
Risk assessment
The assessment evaluates who is exposed, for how long and at what level, considers peaks and vulnerable circumstances, compares legal values and records the control response. HSE expects a reliable estimate and action plan.
Ongoing control
Noise reduction, information, hearing protection and health surveillance may follow. Review the assessment when changes or new information could make it invalid; do not let a one-off survey stand in for ongoing risk management.