Duration
Duration is the length of time during which a person is exposed to a sound. This can range from a short amount of time (such as when exposed to an impulse or impact sound) to a longer amount of time (continuous or ambient). Duration considers length of daily exposure and length of long term exposure (months, years).
Individual susceptibility also is a factor in how hazardous noise affects a person, including sensitivity, age, health (diseases, lifestyle), genetics, etc.
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