Impact of infrasound and low frequency noise on human health and well-being. Part I: Review of experimental studies

Pawlaczyk-Łuszczyńska, Małgorzata; Dudarewicz, Adam; Myshchenko, Iryna; Bortkiewicz, Alicja

doi:10.13075/mp.5893.01354

Cited by 1 publication

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References 53 publications

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“…Many researchers [37][38][39][40][41] point out the inaccuracies associated with measuring noise using dB(A), as this method involves over-reliance on the average hearing sensitivity curve and related volume functions as predictors of noise nuisances. Even in cases where LFN is found and identified as a potential source, problems can arise because in many cases, the sound pressure level can be low relative to the average hearing threshold.…”

Section: Resultsmentioning

confidence: 99%

A Proposal for Risk Assessment of Low-Frequency Noise in the Human–Machine–Environment System

Balážiková,

Pačaiová,

Tomašková

2023

Applied Sciences

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Low-frequency noise, the frequency range from approximately 10 Hz to 200 Hz, has been recognized as a special environmental noise problem. The World Health Organization recognizes the special place of low-frequency noise as an environmental problem. Noise can damage hearing, and it affects the whole body. Low-frequency sound is heard by humans, but infrasound is not audible. Low-frequency sound is most often measured based on a weighting function of the frequency. The A-weighted level underestimates the effects of low-frequency noise. For the detrimental effects of low-frequency sound, it would be appropriate to apply measurements using Z-weighting. The aim of this paper was to propose a comprehensive method of acoustic risk assessment (CMARA) that implements the effects of low-frequency values of noise exposure. The proposed methodology has been applied in practice at four workplaces for seven work activities. A risk assessment using the proposed CMARA method for individual activities shows that the noise exposure time may pose a health risk in the occupational and environmental process due to exposure to low-frequency noise at the limit of audibility. A high risk was assessed for activities WA2 (machining) and WA3 (spot welding). This paper highlights the need to measure low-frequency noise using Z-filter weighting.

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Section: Resultsmentioning

confidence: 99%