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.
Some of that insect noise is communication; that is, individuals are exchanging information. Some of the noises such as mosquitoes buzzing in your ear or flies drowning in your iced tea are incidental to the insect's motion and activity.