File :-(, x, )
hearing damage Anonymous
hey fit
today at school I was doing some work for one of the shop teachers which basically consisted of using a radial arm saw for about an hour, and then for another half hour a little later. it didn't really seem all that loud at the time, and hearing protection had never been suggested let alone enforced for this saw.
the thing is, ever since about the time school got out, my ears have been ringing.

my questions here are:
how hard is it to get permanent hearing damage?
what are the symptoms? (ringing, fuzzy, quiet, certain pitches seem quiet but not others...)

maybe I'm just being paranoid, but I wanted to see if anybody on here could offer me some info
>> Anonymous
Sound pressure is measured in decibels (dB). Like a temperature scale, the decibel scale goes below zero. The average person can hear sounds down to about 0 dB, the level of rustling leaves. Some people with very good hearing can hear sounds down to -15 dB. If a sound reaches 85 dB or stronger, it can cause permanent damage to your hearing. The amount of time you listen to a sound affects how much damage it will cause. The quieter the sound, the longer you can listen to it safely. If the sound is very quiet, it will not cause damage even if you listen to it for a very long time; however, exposure to some common sounds can cause permanent damage. With extended exposure, noises that reach a decibel level of 85 can cause permanent damage to the hair cells in the inner ear, leading to hearing loss. Many common sounds may be louder than you think…

* A typical conversation occurs at 60 dB - not loud enough to cause damage.
* A bulldozer that is idling (note that this is idling, not actively bulldozing) is loud enough at 85 dB that it can cause permanent damage after only 1 work day (8 hours).
* When listening to music on earphones at a standard volume level 5, the sound generated reaches a level of 100 dB, loud enough to cause permanent damage after just 15 minutes per day!
* A clap of thunder from a nearby storm (120 dB) or a gunshot (140-190 dB, depending on weapon), can both cause immediate damage.

In fact, noise is probably the most common occupational hazard facing people today. It is estimated that as many as 30 million Americans are exposed to potentially harmful sounds at work. Even outside of work, many people participate in recreational activities that can produce harmful noise (musical concerts, use of power tools, etc.). Sixty million Americans own firearms, and many people do not use appropriate hearing protection devices.
>> Anonymous
     File :-(, x)
>>151358
>>151358
pic related
>> Anonymous
You're deaf faggot.
>> Anonymous
>>151544
should took your fucking fish oil
>> Anonymous
>>151542
oh my god, im going to curl up and never leave my room. Im going to go deaf and then get run over by a truck.......

the world is not as deary as you make it seem. Yes loud noises can be harmful to you. But there are 3 factors you need to remember, ear is an organ, it heals(granted not from everything but from small stuff like listening to music or being around loud noise for a short period of time). We are around these noises all the time and deafness has not skyrocketed, the body compensates to some degree, you will not die from slight damage. And lastly and most importantly while a factor, immediate loudness is not the biggest factor but rather the extent. You can hear one loud sound and be fine, but suffer permanent damage if you hear that same sound for days on end(such as your music example, people go to rock concerts and end up being ok, but its the people who consistantly for the course of years hear loud music on their headphones who fuck themselves up bad enough to notice)