Current Hearing Threshold Levels for Noise-Exposed U.S. Air Force Personnel. One Year's Reportings

Abstract
The hearing threshold levels of noise-exposed U. S. Air Force military and civilian personnel are presented and compared to the general, noninstitutionalized U.S. population. The U.S. Air Force military personnel show better hearing than the U.S. Air Force civilians or the U.S. population. The Air Force civilians have hearing as good as or better than the U.S. population except at the higher audiometric frequencies in the 45-54-year age range. The relatively good hearing for noise-exposed U.S. Air Force personnel is attributed partly to the exercise of minimum hearing level entrance requirements. However, the existence of a comprehensive hearing conservation program since 1956 is probably the main contributor to the good hearing in spite of exposure to potentially hazardous noise.

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