tors, and working (or sitting) in music halls where rock bands are playing. ③In general, continuous exposure to sounds of over 80 decibels (a measure of the loudness of sound) can be considered dangerous. ④Decibel values correspond to various sounds. ⑤Sounds above about 85 decibels may, if exposure is for a sufficient period of time, produce significant hearing loss. ⑥Actual loss will depend upon the particular frequencies to which one is exposed, and whether the sound is continuous or intermittent.РNoise can have unexpected harmful effects on performance of certain kinds of tasks, for instance, if one is performing a watch keeping task that requires vigilance, in which he is responsible for detecting weak signals of some kind (e.g., watching a radar screen for the appearance of aircraft).
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