Summary report on the Sixth International Congress on Noise as a Public Health Problem In her excellent summary of papers given at the congress concerned, Dr. Suter misquoted me a couple of times; one of these errors is relatively innocuous, but the other is important. Taking the latter first, she writes: (Ward) “reported that it was known at the time of the first congress ... Letter to the Editor
Letter to the Editor  |   March 01, 1995
Summary report on the Sixth International Congress on Noise as a Public Health Problem
 
Author Affiliations & Notes
  • W. Dixon Ward
    University of Minnesota
Article Information
Hearing & Speech Perception / Acoustics / Regulatory, Legislative & Advocacy / Letters to the Editor
Letter to the Editor   |   March 01, 1995
Summary report on the Sixth International Congress on Noise as a Public Health Problem
American Journal of Audiology, March 1995, Vol. 4, 61-a. doi:10.1044/1059-0889.0401.61b
 
American Journal of Audiology, March 1995, Vol. 4, 61-a. doi:10.1044/1059-0889.0401.61b
In her excellent summary of papers given at the congress concerned, Dr. Suter misquoted me a couple of times; one of these errors is relatively innocuous, but the other is important.
Taking the latter first, she writes: (Ward) “reported that it was known at the time of the first congress that a daily average noise level of 80 dB(A) could represent a risk for some individuals.” What I actually said in both 1968 and 1993 was that in 1968 we knew that “Steady noises above 80 dBA are capable of producing some change in auditory threshold, and above 105 dBA they are sure to produce PTS in the normal unprotected ear if exposure continues, eight hours a day, for several years.” There was at that time, and there still is, no evidence that a daily exposure for eight hours to an 80-dB(A) steady noise will produce a measurable change in hearing threshold level.
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