Both the amount of noise and the length of time you are exposed to the noise determine its ability to damage your hearing. Noise levels are measured in decibels (dB). The higher the decibel level, the louder the noise.
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www.asha.org/public/hearing/disorders/noise.htm
www.asha.org/public/hearing/disorders/noise.htm
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(EPA, 1979). This document is the condensed version of the EPA's Levels Document. It is the basis of many current and existing noise regulations. ... Along with air and water contaminants, noise has been recognized as a serious pollutant. As noise levels have risen, the effects of noise have become pervasive and more apparent.
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www.nonoise.org/library/levels/levels.htm
www.nonoise.org/library/levels/levels.htm
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Take a look at the noise levels of many common appliances and events around the house. ... Take a look at the noise levels of many common appliances and events around the house. You might be surprised. All sounds are measured at the distance that a person would typically be from the source.
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www.nonoise.org/library/household/index.htm
www.nonoise.org/library/household/index.htm
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Sound pressure levels (SPLs) recorded show wide patient-to-patient variation, even for the same type of valve. The variation was attributed to body ... heart rate, 99-171 bpm). The measured mean SPLs were 49.5-53.9 dB(A), and there were no statistically significant differences in noise between the valves (p = 0.8;
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www.medscape.com/medline/abstract/14658819
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Noise levels requisite to protect public health and welfare against hearing loss, annoyance and activity interference were identified today by the Environmental Protection Agency. ... These noise levels are contained in a new EPA document, "Information on Levels of Environmental Noise Requisite to Protect Public Health...
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www.epa.gov/history/topics/noise/01.htm
www.epa.gov/history/topics/noise/01.htm
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Noise readings reached as high as 113 decibels--about as much noise as a rock concert or chain saw makes, Cmiel and colleagues report in the February issue of American Journal of Nursing. The most noise was at the morning shift change, around 7 a.m., although the 11 p.m. shift change also was noisy.
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www.medicalnewstoday.com/articles/5754.php
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Noise Levels for U.S. Certificated and Foreign Aircraft ... Estimated Airplane Noise Levels in A-Weighted Decibels ... FAA Home » Offices » Aviation Policy, Planning & Environment » Aircraft Noise Levels...
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www.faa.gov/about/office_org/headquarters_offices/aep/n...
www.faa.gov/about/office_org/headquarters_offices/aep/noise_levels/
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HSE provides information on noise at work. Over 1 million employees in Great Britain are exposed to levels of noise which put their hearing at risk. ... Over 1 million employees in Great Britain are exposed to levels of noise which put their hearing at risk...
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www.hse.gov.uk/noise/index.htm
www.hse.gov.uk/noise/index.htm
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