We work with you to identify, quantity and mitigate health hazards in your workplace.
What are noise surveys and why are they necessary?
Noise is one of the most common physical hazards present in an occupational setting. Prolonged exposure to noise can result in either temporary or permanent hearing loss. The noise guidelines to prevent noise induced hearing loss (NIHL) are an average of 85dBA over an 8-hour work shift or a peak noise of 140dB. If you work longer work shifts the amount of noise you can be exposed to before you get NIHL will change.
If you have noise hazards on site, then you need to assess the hazard to meet your obligations under HSWA. This is done by conducting a noise survey which should be repeated every 5 years or if you make significant changes to your site or working conditions.
Noise surveys are done to evaluate noise levels in the workplace using personal noise dosimeters and a sound level meter and making professional observations of current controls and work practices. In addition, noise surveys may help in identifying sources of excessive noise and determine remedial actions to reduce exposure risks where necessary.
Why use Chemsafety for noise assessments?
The Necessity of a Hearing Conservation Programme
Additional information on noise exposures according to WorkSafe New Zealand
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