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'''Industrial noise''' is often a term used in relation to environmental health and safety, rather than nuisance, as sustained exposure can cause permanent hearing damage. Traditionally, '''occupational noise''' has been a [[hazard]] linked to heavy industries such as [[ship-building]] and associated only with [[noise-induced hearing loss]] (NIHL). Modern thinking in [[occupational safety and health]] identifies noise as hazardous to [[worker safety and health]] in many places of employment and by a variety of means.
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[[Noise]] can not only cause [[hearing impairment]] (at long-term exposures of over 85 [[decibel]]s (dB), known as an [[exposure action value]]), but it also acts as a causal factor for [[stress (medicine)|stress]] and raises systolic [[blood pressure]].
 
Additionally, it can be a causal factor in [[work accident]]s, both by masking hazards and warning signals, and by impeding concentration.
 
Noise also acts synergistically with other hazards to increase the risk of harm to workers. In particular, noise and dangerous substances (e.g. some [[solvent]]s) that have some tendencies towards [[ototoxicity]] may give rise to rapid [[ear]] damage.
 
[[A-weighting|A-weighted]] measurements are commonly used to determine noise levels that can cause harm to the human ear, and special exposure meters are available that integrate noise over a period of time to give an [[Sound level meter#LAT or Leq: Equivalent continuous sound level|L<sub>eq</sub>]] value (equivalent sound pressure level), defined by standards.
 
==Reduction==
[[Acoustic quieting]] is the process of making machinery quieter by damping vibrations to prevent them from reaching the observer.
 
When two identical industrial noise sources are side by side producing a recorded noise at 100 [[dB(A)]] the reduction in noise from shutting off one of the noise sources is about 3 dB resulting in 97 dB(A).
 
When one doubles the distance from a noise source the recorded noise level is reduced by 6 dB.  This is also called the ''Rule of 6''. This is based on the fact that the equation to calculate noise attenuation at a distance <math>d_2</math>, knowing the SPL at distance <math>d_1</math> is given by <math>10log_{10}\left[\left(\frac{d_2}{d_1}\right)^2\right] = 20log_{10}\left[\frac{d_2}{d_1}\right]</math>, where ''d'' is the distance. If the distance is doubled, the equation simplifies to <math>20*log_{10}(2)</math> which equals 6.02 (or approx. 6)
 
==See also ==
*[[Buy Quiet]]
*[[Earplug]]
*[[Earmuffs]]
*[[Noise health effects]]
*[[Noise control]]
*[[Noise mitigation]]
*[[Noise pollution]]
*[[Noise regulation]]
*[[Protective clothing]]
*[[A-weighting]]
*[[ITU-R 468 noise weighting]]
*[[Weighting filter]]
*[[Equal-loudness contour]]
*[[Safe-In-Sound Award]] Excellence in Hearing Loss Prevention
 
== External links ==
*[http://www.osha.gov Occupational Safety & Health Administration]
*[http://www.industrialdeafness.org.uk/ Industrial Deafness]
*[http://www.industrialdeafnesswatch.co.uk/ Industrial Deafness Watch UK]
*[http://www.industrialdeafness.co.uk/ Industrial Deafness Legislation]
 
{{Employment}}
 
[[Category:Noise]]
[[Category:Noise pollution|Industrial noise]]
[[Category:Occupational safety and health]]
[[Category:Industrial hygiene]]

Latest revision as of 16:36, 2 January 2015

Are you having trouble with the Window's Vista computer? Heh, that isn't today? The truth is that everyone goes through it from time to time -- whether it be slow speed or just random crashes, we all experience a bit of Vista "hysteria" each today & again. The sad truth is that instead of fixing the problem, many individuals simply "reside with it". This really is certainly unfortunate because the problem isn't even which big of a problem. In truth, many Vista computer issues could be fixed quite merely through registry repair repair software. However, which leads you to the big question; will a Vista registry cleaner actually function?

Using tools like these is said to become the last resort before giving in and reformatting the HDD plus reinstalling your OS. ComboFix, in addition to scanning for plus removing malware, equally patches up several leaks that might cause infection on your program, however, I'm not at liberty to say what these are.

Whenever we are talking about Windows 7 registry cleaners software much software In the marketplace plus every 1 is user-friendly or 100% reliable. To choose right Windows 7 registry cleaner quite challenge for the user.

Wise Registry Cleaner is accessible in both free and paid (PRO) versions. The latter adds ability to export registry entries into Excel, which, really, I don't find that significant. The free version might remind we of the availability of PRO, nevertheless that's understandable, right?

Even the most effective software program might inadvertently eliminate anything which should be there. If which happens, the computer can show serious issues and will possibly not wish To run at all. As long as you've got a backup, you can restore the registry, in addition to the system, to the method it was. This can save headaches plus frustration, only inside case several thing goes incorrect.

One of the best techniques to figure out whether anti-spyware system is reliable or fake is whenever a vendor advertises saying that it can clean a system removing pop ups plus spyware - with a pop up ad! Next we should clearly think such a vendor. We get pop up and banner advertisements that tell you which the program is afflicted with spyware. Although there are good legitimate anti-spyware vendors offering we a free scan, the trustworthy ones usually never claim that a program is already afflicted!

Your computers registry is where the settings and configurations are stored. Whenever virus software is over zealous, it could remove a file or 2 that we need, which might provide you registry errors. Likewise, a virus will change file associations so that some of a programs stop functioning. Any time a setting cannot be run it might slow the system down considerably. You could even get the blue screen of death.

Users may tour the entire process of using CCleaner following installation. Installation is easy and CCleaner updates will notify we whenever the software has modern changes and allow you to choose whether or not you need to update a CCleaner. CCleaner benefits consumers in alternative techniques too. Instead of waiting for the computer to slow down, run CCleaner and make it a monthly habit. Some consumers find it essential to utilize almost frequently but countless agree that using the tool to keep the computer fined tuned is less expensive than calling inside help for hire.