Duration

30 minutes

Objectives

By the end of this session trainees will understand:

  • the relationship between noise level and exposure

  • the duty to eliminate or minimise exposure

  • the hierarchy of control measures.

Noise Levels and Exposure

The potential for hearing damage is related to the total noise energy reaching the ear. This is a function of the noise level and the duration of exposure.

Noise exposure may be reduced either by reducing the noise level or the time of exposure.

Show slide Upper Exposure Level.

Remind trainees that the upper exposure action level is 85dB(A) averaged over a normal working day of 8 hours.

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