Tag Archives: 85 dB

EFFECTIVE HEARING CONSERVATION IN THE WORKPLACE (GUEST POST)

Occupational hearing loss is an important issue that employers must not only acknowledge but also take precautionary measures to prevent. When your employees work in a dangerously loud environment, without preventive measures in place, they are risking their health and safety on your watch. You may be surprised to know that an environment only needs to have a noise level of 85 db to begin causing damage to the human ear.

A kitchen blender, diesel truck, and city traffic all fall within this range; a noise level most of us don’t think twice about. It only takes a few hours of unprotected hearing before this range (or higher) begins to do irreversible damage. Here are a few examples of ways your company can promote hearing conservation in the workplace.

Provide Employees with Hearing Protection
Hearing protection should be compulsory for employees in all noisy areas. This is made easier when employers have ample hearing protection available that is conveniently located in an area proceeding a workplace with higher noise levels. Mark the area clearly with signs. Consider holding a safety class to educate employees on noise levels in their workplace, proper ways to use the hearing protection, and the risk they take if they choose not to use it.

Decrease Workplace Noise Level
As well as promoting hearing protection awareness in the workplace, you can also take steps to decrease the amount of noise as a whole. Setting a noise target will help your company create a plan, and you will be able to make adjustments accordingly. Consider upgrading older equipment and machinery to quieter newer models and purchase new machinery that has noise control as part of its intended design. Simpler, less expensive measures can also be taken to effectively lower noise in the workplace. Carpeting or other types of noise barrier between certain machinery and employees can be effective at reducing noise levels.

Create Hearing Protection Zones
By clearly marking zones with higher noise levels, workplace hearing awareness will be increased. As a responsible employer, hearing protection should be required in any marked zone. The hearing protection zone should have clear signs that not only mark the area as a dangerous noise area, but also remind employees to use their hearing protection before entering.

Initiate a Workplace Safety Code
To strengthen the importance of workplace safety within your company, you may wish to consider including an official addition on hearing conservation and safety in general in your company code of conduct. Not only does this reinforce safety protocol, but it shows that your company takes employee safety very serious.

Excessive noise does much more than cause hearing damage for your employees, studies have shown that working in a noisy environment increases stress levels, impacts emotional and psychological well-being, and lowers concentration. Chances are if  your company operates with a noisy workplace, employees concentrating on the job at hand is likely detrimental to job safety and the smooth running of the work environment. As an employer you are legally responsible for the well-being of the employees who work for you; hearing safety is vitally important for their safety and your own.

Jessica Galbraith is a writer who has worked in several workplaces under excessive noise. As an advocate for hearing conservation, she also runs a small business entrance mats enterprise.  Sent to us by Debbie Allen.

WHAT IS NOISE-INDUCED HEARING LOSS? (GUEST POST)

The occurrence of noise induced hearing loss is on the increase in the Western world, including Australia.  This increase is generally occurring from exposure to long periods of loud noises, and in some instances short loud noises such as an explosion.  While there are treatment options available, prevention is better than cure.  In order to prevent noise induced hearing loss, it must first be understood how it actually occurs.

How the human ear works

Every day we experience a large range of sounds via sound waves through our ears.  The Middle Ear amplifies the sound and hairs in the inner ear convert the sound waves into electrical signals so that our brains can understand what it is that we are hearing.  All pretty amazing when you think about it.

How does noise induced hearing loss occur?

While most noises we hear throughout the day are at safe levels, if we are exposed to an exceptionally loud sound (such as standing next to fireworks when they go off) or we are exposed to a loud sound for a prolonged period of time (for example working in a mechanical shop) then we can damage the hairs that convert sound in our inner ear.  This causes noise induced hearing loss.

Tips to avoid hearing damage in the workplace

First of all, it is necessary to understand what is meant by the term ‘too loud’. Any noise from 85 dB up can cause hearing loss. To put this figure into perspective, a lawn mower is between 85 and 90 dB. The louder the noise is,  the more quickly the hearing loss will occur. So follow these steps to protect your hearing.

  • Take note of how long you have been exposed to loud noise and try and have a break of 15 minutes or so to give your ears a rest.
  • Avoid noisy situations. If you have to  raise your voice to be heard then it is likely you are in a situation that is hazardous for your hearing.
  • If you can’t avoid a noisy situation, protect your hearing with either foam ear plugs or head phones.
  • If you regularly attend concerts, it may be worth investing in some custom fit musician ear plugs. Always avoid standing directly in front of speakers or amplifiers.
  • Have your hearing tested every two years particularly if you have noticed a change in your hearing. Your clinician will be able to give you further advice about protecting your hearing. 

When does noise induced hearing loss occur?

There are several ways that noise induced hearing loss can occur:

  • Prolonged exposure to noise:  If you are exposed to noise about 85 decibels for a prolonged period of time, then you can start damaging your hearing.
  • Short bursts of sounds:  Sounds above 120 decibels in short bursts can also cause hearing damage.

What are the symptoms?

Immediately after exposure to loud noise you may hear a ringing in your ears and have trouble hearing other people talk.  The length of time this lasts depends on how loud the noise you were exposed to was, and the length of period exposed.  Temporary hearing loss can also occur and for between 16 and 48 hours after an exposure to loud noise (eg., a rock concert).   Temporary hearing loss generally doesn’t have any long term effects.

The longer term symptoms of noise induced hearing loss can be difficult to diagnose at first.  The person may not notice slight changes in their hearing until it reaches a level that is unacceptable to them.  It is for this reason that regular hearing checks are needed. 

What are the treatment options?

As a first step you should make an appointment with a hearing centre.  After your assessment your audiologist will be able to discuss possible treatment options such as avoiding prolonged exposure to loud or the use of hearing aids.  Hearing aids can be very effective for noise induced hearing loss.

Noise induced hearing loss is a condition that is increasing in society.  As cities develop there are more and more opportunities for loud noises, and more chances of being exposed to loud noises for a prolonged period of time.  Both of these can cause noise induced hearing loss.

If you are experiencing noise induced hearing loss – or think you are – then it is imperative that you make an appointment to visit an audiologist to test your hearing today.  The sooner you address the problem the more opportunities you will have to limit the damage and improve your hearing.

BIO – Tanya Wilson

Tanya has over 7 years’ experience working in the hearing healthcare sector and writes hearing health care articles for Connect HearingAustralia.

Tanya’s hearing expertise enables her to focus on a range of hearing topics, including tackling common hearing issues, treatment options and new hearing technology.