Itâs International Noise Awareness Day â Hereâs 5 Facts About Noise
Wednesday 29th2015年4月是国际噪音意识日。世界各地的组织和各国政府的一天提高了对可能影响您健康的不必要噪音的认识。为了纪念这一天，这里的5个噪音事实。
1. The Definition of Noise is âUnwanted Soundâ
Technically, there is actually no such thing as a noise. Noise is perceived as an unwanted sound. This makes it a very subjective matter that affects individuals, communities and businesses around the world differently.
Sound is defined as any pressure variation in air, water or other medium that your ear can detect. Regulations such as the2005年噪声控制工作规定do provide suggested safe levels for the amount of sound pressure you can exposed to over a period of time.
2. 80分贝是噪声暴露的动作水平
为什么我们对噪音非常关心？在长期的情况下，暴露于太多的噪音会导致噪声引起的听力损失和耳鸣，以及压力。然后，压力可以导致其他健康问题。
The level at which noise can start to become harmful to your hearing is 80 dB for 8 hours. Thatâs equivalent to a domestic vacuum cleaner.
As the noise level increases, the amount of time you can be exposed to it before causing damage to your hearing decreases.
- 85 dB â 8 Hours
- 88 dB â 4 Hours
- 91 dB â 2 Hours
- 94 dB â 1 Hour
- 97 dB â 30 Minutes
- 100 db - 15分钟
- 103 db - 7.5分钟
- 106 dB â 3.75 Minutes
- 109 dB â 1.875 Minutes
- 112 dB – 56 Seconds
- 115 db - 28秒
Each increase of 3 dB represents a doubling of the noise level. Thatâs because decibels are measuring on a logarithmic scale. So, increase the noise level by 3 dB, reduce the time by half.
3. One in Five EU Workers Are Affected by Noise at Work
The European Agency for Safety and Health at Work predicts one in five EU workers have to raise their voices to be heard at work. This is one of the key warning signs that you have a noise at work problem that needs investigating.
没有调查这一点的风险很大。您或您的员工可能会受到一段时间内会损坏您的听证会的高噪音水平。如果是这种情况，业务可能会被影响的个人开放起诉或赔偿索赔。
The best way to keep a check on noise at work is to carry out regular noise risk assessments. Youâll need to identify individuals who might be affected by noise and measure their exposure using either asound level meteror anoise dosimeter.
If you find that people are exposed to dangerous noise levels, you must take steps to control the risks. This might involve changing shift patterns to reduce the time people or exposed to high levels of noise, investing in quieter machinery or sound barriers.
If youâve made every effort to control the noise but the levels are still too high, you can introduce hearing protection for your workforce. If you use asound level meter with octave band analysis，您可以获得使用的建议使用noise analysis software.
为一个完整的故障调查噪声在磨破k, download our eBook:5 Biggest Noise at Work Mistakesâ¦.and How to Fix Them.
4. 76% Affected by Noise Nuisance
Itâs estimated that up to 76% of the UK population is effected by noise pollution or noise nuisance.
This can be caused by excessive noise from construction sites, airports, wind farms of industrial areas. Noise nuisance can also be a lot closer to home in the form of noisy neighbours, barking dogs and even卡拉诺克之夜.
If youâre affected by a noise nuisance issue, itâs always recommended that your approach your local council of Housing Association first. Theyâll be able to use equipment like ab0b体育投注 to accurately measure, record and analyse reported cases of noise nuisance.
5. The Noisiest Job Isâ¦â¦
Airport ground staff. Anyone living near an airport or under itâs flight path will tell you how noisy it can be. Imagine working underneath planes taking off all day.
Airport ground staff are commonly exposed to 140+dB every time an aircraft takes off. There isnât much airports can do to control the noise but manufacturers are trying to make air travel quieter and quieter. For this reasons, youâll usually see worker wearing hearing protection and communicating with hand signals.
所以，这是它的。5纪念国际噪音意识日的5个噪音事实。
