The recommended exposure limit for occupational noise needs to be revised downwards

نویسندگان

چکیده

Noise-induced hearing loss (NIHL) is caused by cumulative occupational and non-occupational noise exposure. The National Institute for Occupational Safety Health (NIOSH) developed exposure recommendations (85 dBA 8-hour time-weighted average) in 1972. Fifty years later, the NIOSH recommended limit (REL) needs to be revised downwards. In its calculations, assumed that workers have quiet when not at work, something no longer true. Non-occupational begins childhood continues during work into retirement. Multiple studies document daily exposures near 75 dB or dBA, exceeding Environmental Protection Agency's calculated level prevent loss, a average of 70 24 hours (Leq(24)). calculations were based on material measured limited frequency pure tone audiometry, an insensitive measure noise-induced auditory damage. Use more sensitive measures damage would show NIHL after shorter times. Downward revision REL will protect workers, may lead greater public awareness dangers noise, guidance reduced exposure, regulations lower ambient levels. A quieter world better healthier all.

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ژورنال

عنوان ژورنال: Proceedings of Meetings on Acoustics

سال: 2022

ISSN: ['1939-800X']

DOI: https://doi.org/10.1121/2.0001729