Noise pollution is quickly approaching epidemic proportions, due to the fact that hearing loss is so subtle people are frequently effected without even noticing. Noise induced hearing loss is a cumulative and permanent sensori-neural hearing loss which develops over days, weeks, or even years of excessive noise exposure. Once this loss occurs it is difficult for the person to notice when the noise level is too high. In addition to hearing loss there are many studies showing that stress induced by noise is causing major medical problems as well.

The Hearing conservation amendment requires employers to monitor all employees exposed to noise levels between 80 and 130 dBA. The following chart shows the maximum exposure time allowed at the given decibel level without hearing protection. As this chart reflects there are debates within the controlling agencies as to just how loud "too loud" is. The EPA has the strictest guidelines claiming noise exposure in excess of 76 dB over an 8 hour period is unhealthy, NIOSH guidelines start at 85 dB, and OSHA at 90 dB.

Due to resent research both the EPA and NIOSH have recommended one-half exposure for every 3 dB compared to the one-half exposure for every 5 dB from OSHA. Whichever guidelines you choose to follow, the McLennan Sound Monitoring Inc. Sound Level Monitor allows your company to easily comply. Due to the complex nature of noise related medical problems NIOSH encourages educating employees in regard to noise induced medical problems, and the associated consequences. Don't let the employees or the customers just guess if the noise level bothers their ears, improve your company wide hearing conservation program with the monitor that shows just how loud it is.

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