Occupational Hygiene Newsround

Are Your Construction Tools

Affecting Your Hearing?

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Did you know that 1 million people are exposed to hearing-damaging noise at work? If you work in construction, you’re most likely aware that the industry is a noisy business. But did you also know that the sector has the second highest rate of people developing occupational deafness?

Unfortunately, when you lose your hearing, it’s irreversible and life-changing. 

The Noise Levels of Construction Tools

The volume of sound is measured in decibels (dB). A higher decibel means a louder noise, and more damaging. However, if you’re exposed to anything at 85dB or higher for extended periods of time, your hearing can be permanently damaged.

To help raise awareness, we have uncovered the decibels of the most common tools found on site – without hearing protection. Each tool has then been ordered from loudest to quietest so that construction workers can understand the hearing implications that come from working with these tools every day.
































Using a Scabbler for 15 Minutes Can Permanently Harm Your Hearing

As you can see, the decibels of most construction tools are way above the recommended limit (85 dB), therefore workers should always wear ear protection. For example, using a scabbler for 15 minutes is nearly as loud and just as damaging to our ears as a helicopter flying at 100ft.

What’s more, using a pneumatic breaker without protection for one minute, is the noise equivalent of a military jet taking off.

At the top of the noise scale is a cartridge tool. Even using this for one second creates sound levels of 157dB, that are instantly damaging to your hearing without protection.


Removing Your Ear-Muffs For Just Five Minutes Cuts Your Protection in Half

Naturally, if you become familiarised with the noise level on a construction site, you may believe there’s no harm in removing your hearing protection. However, research from the Health & Safety Executive has revealed that removing your ear-muffs for a couple of minutes can seriously damage your hearing.

If you are using earmuffs that provide 25dB of protection, removing them for five minutes will reduce your overall protection to 11dB (56% less). Or removing your ear-muffs for 10 minutes will reduce your overall protection to just 8dB (68% less).

For example, if you were to use an electric drill (100 dB) whilst wearing ear-muffs that give a protection of 25dB, your ears would only hear noise levels of 75dB. However, removing your protection for five minutes reduces that 25dB protection to just 11dB - which would expose you to a noise level of 89dB (100dB of the tool minus 11dB).  Unfortunately, this is over the previously recommended noise level of 85dB and can, therefore, permanently damage your hearing.


Failure to Equip Employees with Hearing Protection has Contributed to a 25% Rise in Noise Breaches and the Building Safety Group have revealed that noise breaches are up 25% on UK construction sites (compared to Q1 of 2019).

Work-Related Hearing Loss Costs the UK’s Economy Up to £7 Billion Per Year

Hearing loss affects personal life massively, so much so that occupational deafness has the second-highest rate of disabled award status - meaning that benefits are paid out from the government.  In turn, not only does hearing loss impact someone’s life but the UK’s economy too. It’s estimated work-related hearing loss costs:

  • The NHS £500 million a year.

  • The UK insurance industry £70 million a year in liability claims.

  • The UK’s economy up to £7 billion a year.

These numbers are incredibly alarming considering hearing loss at work is preventable. Evidently, the way hearing protection is managed at work needs to change to protect workers and the UK.


What Can Employers Do to Protect Their Workers?

According to the World Health Organisation, 50% of all hearing issues can be prevented through various health measures. So, how exactly should employers protect their workers hearing?

Under ‘The Control of Noise at Work Regulations 2005’ employers have a duty to reduce and control noise as much as possible on a site. There are a number of ways employers can protect their employees from hearing damage, such as:

  • Supply hearing protection.

  • Purchasing quieter tools.

  • Making machinery as quiet as possible by using pads to minimise vibration, using silent blades and nozzles, or replacing fans and motors.

  • Looking out for alternative ways to carry out the construction work without the use of loud machinery - like doing tasks by hand.

  • Limiting the amount of time workers are exposed to a noisy task.


How to Spot Hearing Loss

If you believe your employer has failed to practise sufficient hearing safety on site, or you are worried you have subjected yourself to loud levels of noise - there are signs to look out for.

Generally, occupational hearing loss is gradual, but you can spot symptoms to prevent any further damage. These include:

  • Ringing in ears

  • People sound like they are mumbling

  • Hard to hear when there’s background noise

  • Asking people to repeat what they said

  • Speech sounds muffled or distorted

  • Muffled hearing at the end of your working day


Protect yourselves - once you lose your hearing, sadly you cannot get it back, so it’s important to always wear hearing protection at all times in noisy environments. 

Credit: Extract from Insulation Express web

Source:  Insulation Express