Measuring method of occupational non-Gaussian noise exposure based on kurtosis adjustment
The existing measuring methods of noise exposure on the basis of equal energy hypothesis are applicable to Gaussian noise while not fully applicable to non-Gaussian noise. Studies have shown that temporal structure (kurtosis) combined with noise energy has the potential to quantify non-Gaussian nois...
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Published in | Huan jing yu zhi ye yi xue = Journal of environmental & occupational medicine Vol. 39; no. 4; pp. 362 - 366 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Chinese English |
Published |
Shanghai
Shanghai Municipal Center For Disease Control and Prevention
2022
Editorial Committee of Journal of Environmental and Occupational Medicine |
Subjects | |
Online Access | Get full text |
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Summary: | The existing measuring methods of noise exposure on the basis of equal energy hypothesis are applicable to Gaussian noise while not fully applicable to non-Gaussian noise. Studies have shown that temporal structure (kurtosis) combined with noise energy has the potential to quantify non-Gaussian noise exposure effectively. However, there is no unified measuring method adopting this joint metric. In this paper, the measuring method of non-Gaussian noise exposure based on kurtosis adjustment was introduced, detailing measurement indicators, adjustment schemes, applicable objects, instrument requirements, and measurement steps. Adjusting the exposure duration of cumulative noise exposure (CNE) by kurtosis or adjusting the equivalent continuous A-weighted sound pressure level (LAeq) by an adjustment coefficient based on animal or population studies can more accurately quantify workers' exposure to non-Gaussian noise and improve the underestimation of hearing loss caused by non-Gaussian noise. A large number of population studies are warranted in the future to verify the effectiveness of these two adjustment schemes. |
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ISSN: | 2095-9982 |
DOI: | 10.11836/JEOM21578 |