Values are what we, as a profession, judge to be right. They are more than words-they are the moral, ethical, and professional attributes of character. . . there are certain core values that must be instilled in members of the U.S. Army-civilian and uniformed soldier alike.
Industrial Hygiene. Noise. Full text of hearing conservation program. Materials on acoustics. Noise attentuation. Noise basics. Technical material from NIOSH. Hearing protection devices. Noise induced hearing loss.
Loudspeaker Directivity and. Vehicle Siren Sound Levels. One of the most prevalent occupational health problems is the control or moderation of high sound levels in the driver's seat of emergency vehicles. In cabover style emergency vehicles, roof or bumper mounted sirens can produce almost identical sound levels in the driver's seat.