When we talk about noise risk under Decree 81/08, it is not just a matter of complying with the law. It is about real health, that of your workers and the peace of mind of your company. Because noise at work is not merely annoying: it is a silent, continuous and, all too often, underestimated threat. Yet Legislative Decree 81/08 is perfectly clear: if there is exposure to noise, it must be measured, assessed and managed.
And no, it is not a topic that concerns only those who work in a factory or on a building site. Noise can become a problem even in seemingly quiet environments. So here is everything you need to know to tackle this subject seriously, but also simply.
What noise risk is under Decree 81/08
Noise at work is any sound, continuous or impulsive, that can cause hearing damage or interfere with communication and concentration. According to Article 190 of the Consolidated Safety Act (Legislative Decree 81/08), every employer must assess workers’ exposure to noise and intervene when certain limits are exceeded.
But what are these limits? The regulations distinguish between action levels and exposure limit values. When action levels are exceeded, prevention obligations are triggered. When limit values are exceeded, we enter the realm of urgent corrective measures.
The reference levels are:
- 80 dB(A) as daily exposure level: first warning signal
- 85 dB(A): obligation to provide hearing PPE and training
- 87 dB(A): limit value that must never be exceeded, even taking into account the effect of protective devices
And note: even a short but intense exposure can cause serious damage. It is not only the decibels that count, but also how long you remain exposed.
Why noise is a real and underestimated risk
Noise strikes slowly, without you noticing. Hearing damage does not arrive in a day, but accumulates over time. And by the time you notice, it is too late. Noise-induced deafness is irreversible. And we are not only talking about those who work with pneumatic drills or combustion engines. Even environments such as call centres, workshops, bakeries or warehouses can expose people to dangerous levels.
The problem is that people often get used to it. The brain “filters” continuous noise, and the worker does not even realise it. But the damage to the inner ear carries on. A regular, objective assessment is the only way to really know what you are exposed to.
What Article 190 of Legislative Decree 81/08 says
This article is the heart of noise risk management. It requires the employer to:
- assess the level of personal exposure
- take into account the duration, frequency and type of noise
- also consider impulsive peaks, as well as continuous noise
- measure levels with suitable instruments and according to standard methods
- update the assessment whenever something changes in the production process
And that is not all. If 80 dB(A) is exceeded, the employer must inform, train and offer the possibility of undergoing health surveillance. If 85 is exceeded, surveillance becomes mandatory. And above 87 dB(A), activity must be stopped until safe conditions are restored.
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How the noise risk assessment is carried out
It is not done by eye. Instrumental measurement is required, carried out with approved sound level meters or dosimeters. Surveys must be carried out in normal working conditions, on representative samples of tasks and environments. There is no need to measure every day, but it is important that the data are up to date and realistic.
The assessment must take into account:
- average exposure level over 8 hours (LEQ)
- peak sound levels (LPeak)
- presence of impulsive noise (e.g. pneumatic hammers, presses)
- use of protective devices (and their real effectiveness)
The results must be reported in the DVR, the risk assessment document, with a clear indication of the exposed workers, the measures adopted and the planned health surveillance plan.
What to do if the levels are too high
When decibels exceed the limits, you cannot pretend nothing is wrong. You must act. Countermeasures can be of three types:
- technical: acoustic insulation, barriers, silencers, machine maintenance
- organisational: rotation, scheduled breaks, reduction of exposure per worker
- individual: supply of certified hearing protectors (plugs, earmuffs, inserts) suited to the type of noise
And no, you cannot start with PPE. Legislative Decree 81/08 says so clearly: first you try to eliminate or reduce noise at the source. Only where it is not possible to act in any other way are personal protective devices used.
The effects of noise: not only hearing
When talking about noise risk, the mind immediately goes to hearing loss. But noise does much more. It affects concentration, alters mood, increases stress and blood pressure. In some cases, it can even contribute to the development of cardiovascular disease.
In noisy environments it is easier to get distracted, to make mistakes. This means an increased risk of accidents, especially where machinery or moving vehicles are in use. That is why noise must never be underestimated, even if it “doesn’t seem that loud”.
A single list to keep everything under control
To manage the noise risk under Decree 81/08 correctly, here is what must not be missing in your company:
- periodic noise measurement in all exposed departments
- updating the DVR with specific, current data
- classification of exposed and non-exposed workers
- delivery and actual use of hearing PPE, with training on correct use
- audiometric health surveillance for exposed individuals
- documentation of the technical measures adopted (e.g. shielding, maintenance)
- regular information to all staff on risks and good practices
- management of non-conformities and reports from workers
By following this scheme, you will always be one step ahead of legal obligations and be able to face any inspection with peace of mind.
Signs not to ignore
Noise risk does not announce itself with a siren. It creeps in slowly. Some warning signs to take seriously:
- difficulty hearing well at the end of the shift
- whistling or ringing in the ears (tinnitus)
- needing to raise your voice to talk to colleagues at a short distance
- recurring complaints from workers
If you notice even just one of these signs, do not wait. Have the noise levels checked and update the assessment straight away.
Special cases to know about
There are situations where noise management becomes even more delicate. For example:
- young or older workers: more sensitive to acoustic damage
- craft businesses: often neglect measurements, thinking they are not needed
- multiple-risk environments: noise can amplify the effects of other factors (vibration, chemical substances)
In these cases, a customised assessment is needed, perhaps with the support of a technician specialised in acoustics.
Frequent doubts about noise risk
Do I have to measure even if the noise is “bearable”?
Yes, subjective perception is not enough. Only objective measurement can tell you whether you are below or above the threshold.
How often must the assessment be updated?
Whenever the process, machinery, organisation or layouts change. In the absence of changes, at least every 4 years.
Is PPE enough to be compliant?
No. First you must eliminate noise at the source. PPE is the last barrier.
Can I rely on an external consultant?
Of course, but check that they are qualified and that they give you a detailed report with measurements, comments and proposals.
Can the DVR contain only an estimate?
No, a complete technical analysis is needed if the noise exceeds the attention levels.
Conclusion: take noise seriously, before it does damage
The noise risk under Decree 81/08 is not a bureaucratic obligation. It is a concrete matter of health, well-being and also competitiveness. Because a worker who hears well, who works in a healthy environment, is also more attentive, more productive and less prone to accidents.
Put in place everything that is needed: measurements, information, devices and good practices. Do not wait for the next inspection or, worse, a report to INAIL. Noise cannot be seen, but it leaves its mark.
And today, right now, you can decide to turn up the volume on safety. Doing so is an act of responsibility, seriousness and care. And it will do good to everyone: to you, to your company and to the ears of those who work there every day.
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