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Noise at Work Information |
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Control of Noise at Work Regulations 2005
From 6th April 2008 The Control of Noise at Work Regulations 2005 now covers venues that also play live or recorded music.
People who work or perform in pubs or clubs where amplified music is played are likely to experience high noise levels.
Regular exposure to high levels of noise can cause permanent hearing damage
The Control of Noise at Work Regulations 2005 specify action values and exposure limit values for daily personal noise exposure (or weekly personal noise exposure) and peak sound level.
Daily personal noise exposure (LEP,d) is a measure of the total noise received by an employee over the working day. Daily personal noise exposures depend both on noise levels experienced at work and on the time spent in the noise. A high level noise for a short time will give the same noise exposure as a lower level noise for a longer time, if the total sound energies of the two noises are the same. For an eight-hour working day, the average noise level over the eight hours is numerically equal to the daily personal noise exposure. For example, an employee working for 8 hours in a noise level of 75 dB(A) will have a noise exposure of 75 dB(A) LEP,d. However, if the time spent is less than 8 hours the noise exposure will be less than 75 dB(A) LEP,d, and if the time is longer than eight hours the noise exposure will be more than 75 dB(A) LEP,d. (International standards use the symbol LEX,8h in place of LEP,d.)
Weekly personal noise exposure (LEP,w) is a measure of the total noise received by an employee during a working week. It is similar to the daily noise exposure but is calculated for a 40-hour week (five 8-hour days) instead of an 8-hour day. (International standards use the symbol LEX,8h in place of LEP,w)
Peak sound pressure level (LCpeak) is the instantaneous C-weighted peak sound pressure level occurring at any time during the working day.
The lower exposure action values are
80 dB(A) LEP,d or 80 dB(A) LEP,w - ie a daily or weekly personal noise exposure of 80 dB(A)
135 dB(C) LCpeak - ie a peak sound pressure level of 135 dB(C).
The upper exposure action values are
85 dB(A) LEP,d or 85 dB(A) LEP,w - ie a daily or weekly personal noise exposure of 85 dB(A)
137 dB(C) LCpeak - ie a peak sound pressure of 137 dB(C).
The exposure limit values are
87 dB(A) LEP,d or 87 dB(A) LEP,w - ie a daily or weekly personal noise exposure of 87dB (A); ie
140 dB(C) LCpeak - ie a peak sound pressure of 140 dB(C).
The exposure action values are ambient noise levels in the workplace at the worker's location and do not take into account the effect of any hearing protection. The exposure limit values however, do take the effect of hearing protection into account.
Employers and employees working in pubs and clubs have responsibilities to protect the hearing of all employees. This includes bar staff, performers and crew, including guest performers.
Good acoustic design of the premises needs to be incorporated at the earliest possible time to minimise exposure to unnecessary noise and is usually cost-effective.
Things you need to think about include:
Design and layout of the premises: Simple changes can help to overcome inadequate acoustic design and minimise unnecessary exposure to employees
Volume: Controls are often turned up too high, for example because the sound equipment is distorting the music
Length of exposure: The duration of the person's exposure to noise is as important as the noise level
Type of performance: Different acts using different equipment will create different noise levels
What do you need to do?
Carry out a noise risk assessment(Where live amplified music is performed you may assume that you need to take action)
There are steps you can take to reduce and control people's exposure to noise. People can still enjoy the music with these controls in place.
Steps you can take to reduce people's exposure to noise include:
Acoustic controls: help to absorb reverberant noise
Physical separation: keep employees away from noisy areas
Direction controls: to point the sound where you want it - the dance floor or performance area, and away from bars and other areas
Volume control: keep all equipment in good working condition and make it clear who can use the volume controls and install a limiter if you do not have one
Managing exposure: to reduce the length of time to which individuals are exposed
Information, instruction and training: to make sure everyone understands what you are doing about noise, and why it is important
Hearing protection: but only after you have looked at all other ways of controlling noise or while you are implementing a more permanent solution
Hearing health checks: make sure people at risk are regularly monitored
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