Church Bells

Church Bells: "Frequently used tools are the sound level meter (SLM) for noise levels caused by a discrete source and noise surveys, the noise dosimeter for personal noise exposure and the integrating sound level meter (ISLM). The user's manual will provide details on calibration, operation and interpreting readings. Church PA systems often reach 125dBA. That level of noise is damaging to the ear, and could cause initial acoustic trauma leading to partial or total loss of hearing. The maximum limit of noise, considered acceptably moderate, for outdoors is 75dBA, while indoors the limit should be no more than 45dBA. Most church bells are probably much louder, both indoors and outdoors. The health risks from noise are manifold and can cause both mental and physical damage. Mental: aggression, bad temper, lack of concentration, severe stress, depression, panic attacks, etc. Physical: tinnitus, migraine headaches, impaired hearing, high blood pressure, rapid heartbeat, interrupted sleep or even insomnia, agitation, constant tenseness, etc. To name a few!"