Noise Exposure and Hearing Loss among Brewery Workers in Lagos, Nigeria

Wouters, Nino L; Kaanen, Charlotte I.; Ouden, Petronella J. den; Schilthuis, Herbert; Böhringer, Stefan; Sorgdrager, Bas; Ajayi, Richard A.; Laat, J. A. P. M. de

doi:10.3390/ijerph17082880

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…However, less than half of participants reported consistent use of PPE. This was the same observation according to Wouters et al [13] in 2020.…”

Section: Discussionsupporting

confidence: 89%

“…Furthermore, we also found a significant association between the duration of noise exposure and noise-induced hearing loss. The respondents had an average duration of weekly noise exposure of 23 h 28 min ± 13 h 32 min, while Wouters et al [13] in Nigeria, reported among the workers of a brewery in Lagos, an average duration of weekly noise exposure greater than ours (51 h ± 15 h 57 min). It therefore appears that the subjects exposed to the noise of the mills in the markets of Parakou were mainly full-time workers, working for more than 8 hours in a noisy environment affecting their hearing.…”

Section: Discussioncontrasting

confidence: 62%

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Prevalence of Noise-Induced Hearing Loss Related to the Mills in the Markets of the Municipality of Parakou in 2021

Bouraïma,

Ametonou,

Vodouhe

et al. 2024

IJOHNS

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Introduction: Noise is the second leading cause of hearing loss in adults after presbycusis. The objective of this work was to study hearing loss induced by the noise of mills in the markets of Parakou. Methods: This was a descriptive and analytical cross-sectional study, conducted from February 3 to June 3, 2021 in the markets of Parakou. It concerned millers and sellers located within a 5 meter radius around the mills and among whom pure-tone audiometry was performed to detect a hearing loss. Subjects with no particular medical health history, under 55 years of age and having been working in these markets since more than 12 months, were included. Results: In this study, 103 subjects were selected, including 43 millers and 61 sellers. Their average age was 29 ± 13 years. The sex ratio was 0.49. The average length of service in the profession was 8 years with the extremes of 3 months and 47 years. They were exposed to noise on average 10 hours per day and 6 days a week. The average duration of weekly noise exposure was 23 h 28 min ± 13 h 32 min with the extremes of 5 h 00 min and 52 h 30 min. The average level of noise exposure was 90 dB with the extremes of 72 and 110 dB. 24 subjects reported symptoms related to noise such as headache, tinnitus, and hearing loss, with respective proportions of 22.33%, 20.39% and 06.80%. The prevalence of noise-related hearing loss was 26.21% (n = 27/103). Subjects with a notch at 4000 Hz and normal Average Hearing Loss (AHL) (20.39%) had a seven-time greater risk of developing noise-induced hearing loss

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“…However, less than half of participants reported consistent use of PPE. This was the same observation according to Wouters et al [13] in 2020.…”

Section: Discussionsupporting

confidence: 89%

Section: Discussioncontrasting

confidence: 62%

Prevalence of Noise-Induced Hearing Loss Related to the Mills in the Markets of the Municipality of Parakou in 2021

Bouraïma,

Ametonou,

Vodouhe

et al. 2024

IJOHNS

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show abstract

“…Environmental noise is everywhere. However, when people work and live in a high-noise environment for a long time, it brings great risks to people’s health, such as hearing loss and noise trouble [ 1 , 2 ]. As people mainly work and live in indoor environments, the application scenarios of noise control are also mainly aimed at indoor environmental noise.…”

Section: Introductionmentioning

confidence: 99%

A Noise Control Method Using Adaptive Adjustable Parametric Array Loudspeaker to Eliminate Environmental Noise in Real Time

Zheng

2021

IJERPH

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Long-term exposure to environmental noise is dangerous to human health. Therefore, there is an urgent need to suppress or eliminate environmental noise. Due to the limitation of environmental space, the use of reverse sound waves emitted by loudspeakers for noise elimination has been widely used in noise control. However, because of the omni-directionality of sound propagation, a traditional voice coil loudspeaker (VCL) is used as a secondary source (emission reverse sound wave). It is easy to increase the sound pressure in non-target areas and form significant acoustic feedback to the reference source. Therefore, we propose an online secondary path modeling method using an adjustable parametric array loudspeaker (PAL) based on ultrasounds to eliminate environmental noise in real time. According to the different distance of the target, the size of the PAL is adjusted adaptively to realize the noise control of different long-distance targets. The distribution of quiet areas is discussed. The experimental results showed that a PAL as a secondary source had the same noise reduction effect as a traditional VCL, but it had longer propagation distance, smaller sound feedback and a more regular and controllable distribution of quiet areas. These research findings have great potential for improving environmental noise and creating a quiet environment.

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“…Basner et al [15] studied the effects of noise on hearing, and found hearing loss caused by noise is very common in working environments. Studies [16][17][18][19][20][21][22] have also found that high noise levels can cause hearing loss and general health problems. Masterson et al [23] studied the hearing loss of workers exposed to noise from 2003 to 2012 and found 76% mining workers are exposed to dangerous noise.…”

mentioning

confidence: 99%

A simulation experiment study to examine the effects of noise on miners’ safety behavior in underground coal mines

Qin

Yang

et al. 2021

BMC Public Health

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Background Noise pollution in coal mines is of great concern. Personal injuries directly or indirectly related to noise occur from time to time. Its effects impact the health and safety of coal mine workers. This study aimed to identify if and how the level of noise impacts miners’ safety behavior in underground coal mines. Methods In order to study the influence of noise on miners in the mining industry, we built a coal mine noise simulation experiment system, and set the noise test level at 50 dB ~ 120 dB according to the actual working environment at well. We divided the noise gradient into 8 categories and conducted 93 experiments, in which we aim to test miners’ attention distribution, fatigue, and reaction under each level, and the experimental results were analyzed by SPSS22.0 software. Results The results show that the increase of environmental noise level will have an impact on the attention, reaction, and fatigue. The noise is positively related to the fatigue, the noise is negatively related to the attention and reaction. In the noise environment, the sensitivity of the personnel to optic stimuli is higher than that to acoustic stimuli. The test indicators of attention, fatigue, and reaction will change significantly, when the noise level is greater than 70 ~ 80 dB. Conclusions From the perspective of accident prevention, the noise level can be controlled within the range of less than 70 ~ 80 dB, which can control the occurrence of accidents to a certain extent.

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Noise Exposure and Hearing Loss among Brewery Workers in Lagos, Nigeria

Cited by 8 publications

References 11 publications

Prevalence of Noise-Induced Hearing Loss Related to the Mills in the Markets of the Municipality of Parakou in 2021

Prevalence of Noise-Induced Hearing Loss Related to the Mills in the Markets of the Municipality of Parakou in 2021

A Noise Control Method Using Adaptive Adjustable Parametric Array Loudspeaker to Eliminate Environmental Noise in Real Time

A simulation experiment study to examine the effects of noise on miners’ safety behavior in underground coal mines

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