85dB (a waves) and (c waves) at 8 hours per day for 40 hours a week is in fact called excessive noise. The time then decreases per dB over that. So if your in a loud environment at work its a good idea to get some earplugs from your boss, as its his obligation to supply them.
If you don't have the equipment, you can't measure the decibel levels, anyway, so that info probably wouldn't help you, would it? Anyway....
As a general rule of thumb, you should be able to have a conversation with somebody in the same room without raising your voice. Also, headphones aren't a good idea, because they direct sound straight into your ears. I haven't used a headset in years, for this reason. I see people who seem permanently attached to their iPods, and I see a generation of people who will have hearing loss in the future.
The "safe" db level of listening to music depends on the amount of time spent listening. Each individual also has different susceptibility to injury. So unfortunately there is no easy answer to the question.
To my knowledge, there has not been specific research on the effects the db level of listening to music. However, there are data and standards for occupational exposures to noise.
For a discussion of the issue, you can consider this article:
The "safe" db level of listening to music depends on the amount of time spent listening. Each individual also has different susceptibility to injury. So there is no quick and easy answer to the question unfortunately.
To my knowledge, there has not been specific research on the effects the db level of listening to music. However, there are data and standards for occupational exposures to noise.
For a discussion of the issue, you can consider this article:
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