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1

Industrial Noise as a Source of Threat in the Field of Blasting Technology in Coal Mines

Mocek Piotr

New Trends in Production Engineering

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2020

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Vol. 3, Iss. 1

83--97

EN

The publication presents partial results of hearing screening tests conducted in 2019 among employees of 37 hard coal mines located in the Śląskie and Małopolskie voivodships. The tests were carried out in different cities of both voivodships using the Mobile Hearing Diagnosis Center, which parked near the selected mine and specialized hearing diagnostics points of the ACSłuchmed Sp. z o. o. from Lublin. At the diagnostic points, detailed total audiometry tests were conducted on people diagnosed with hearing disorders as part of screening tests. The obtained results allowed to identify branches and workplaces with the highest risk of noise hazard in mines. The presented publication shows the results of noise measurement during blasting works and the results of anonymous surveys conducted among employees of the Department of Blasting Technology of hard coal mines. The survey concerned the subjective feelings of employees regarding noise levels at the workplace and its impact on their well-being and state of health. In the publication summary, the author draws attention to the need to take measures to constantly control the noise level at the workplace and introduce solutions that will enable its reduction and allow for better protection of employees against its damaging consequences.

2

Influence of noise on children’s sense of hearing

Kaczorowski Adam, Komasa Maria

Vibrations in Physical Systems

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2019

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Vol. 30, nr 1

art. no. 2019124

EN

Children are at risk of developing hearing problems due to their exposure to high sound pressure levels for excessive amounts of time. The aim of this project was to establish the relationship between sound levels in the most hazardous fields and their effect on children’s sense of hearing. Measuring sound pressure levels in schools, analysing earphone and headphone usage and comparing them to audiometry results enabled basic dependencies to be found. Some of the examined children fall outside the safe exposure times to certain sound pressure levels (according to WHO directives). The results analysed in frequency bands show that there is a clear correlation between a shift in hearing threshold and intensity levels in music. Noise during lessons is not very high, but the noise during breaks and of bell rings can influence children’s’ hearing to a certain extent. Due to improper usage of earphones and headphones, the young people we examined may develop hearing loss at an early age.

3

Ochronniki słuchu. Dobór i użytkowanie

Makarewicz Grzegorz

Promotor BHP

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2019

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nr 1-2

10--21

PL

Ochronnik słuchu musi być odpowiednio dobrany i użytkowany, aby właściwie spełniał swoją funkcję i stanowił rzeczywiste zabezpieczenie pracownika przed ubytkiem słuchu. Obecnie obowiązują trzy znormalizowane metody doboru ochronników słuchu.

4

Badanie ubytku słuchu u górników

Tkocz Ryszard

Promotor BHP

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2019

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nr 7-8

12--19

PL

Z danych Instytutu Medycyny Pracy wynika, że drugą co do częstotliwości występowania chorobą zawodową w górnictwie jest trwały ubytek słuchu. Pierwszą z nich jest pylica. W artykule przedstawiono dokładną analizę badań słuchu u pracowników kopalń węgla.

5

Hearing tester - mobile application for hearing loss screening

Krzyżek Krzysztof, Kłaczyński Maciej

Diagnostyka

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2019

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Vol. 20, No. 3

87--95

EN

The article presents results of the work on creation of an application for Android mobile devices to perform hearing screening using pure-tone air conduction audiometry. The application was created in accordance with the procedure defined in the ISO 8253-1: 2010 standard and is to serve the widest possible group of people in a domestic environment, using headphones included with mobile devices. The effectiveness of the application was verified by performing comparative hearing tests on a representative group of patients with different hearing status. Validation was performed using the Interacoustics AD629 clinical audiometer and procedures adopted in the standards. The results of the test comparison were satisfactory. The mean error of the hearing threshold tested using the mobile application, compared to the clinical audiometer was 5.2 dBHL. In addition, the hearing threshold curves for the mobile application are similar in shape to the hearing thresholds for the clinical audiometer and coincide with the auditory experiences of the patients.

PL

Artykuł przedstawia wyniki prac nad stworzeniem aplikacji na urządzenia mobilne z systemem Android w celu wykonania przesiewowych badań słuchu w zakresie progowej audiometrii tonalnej przy przewodnictwie powietrznym. Aplikacja została stworzona zgodnie z procedurą określoną w normie ISO 8253-1:2010 i ma służyć jak najszerszej grupie osób w domowych warunkach badań przy wykorzystaniu słuchawek dedykowanych urządzeniom mobilnym. Działanie aplikacji zostało zweryfikowane poprzez wykonanie porównawczych badań słuchu na reprezentatywnej grupie pacjentów o zróżnicowanym stanie słuchu. Walidację przeprowadzono przy użyciu audiometru klinicznego Interacoustics AD629 i procedur przyjętych w normach. Wyniki badań porównawczych okazały się zadowalające. Średni błąd zbadanego progu słyszenia przy pomocy aplikacji mobilnej, w porównaniu do badań przeprowadzonych przy pomocy audiometru klinicznego, wyniósł 5.2 dBHL. Dodatkowo, krzywe progu słyszenia dla aplikacji mobilnej są zbliżone w kształcie do krzywych progu słyszenia dla audiometru klinicznego i pokrywają się z wrażeniami słuchowymi pacjentów.

6

Noise-induced hearing loss in bus and truck drivers in Mazandaran province, 2011

Alizadeh A., Etemadinezhad S., Yazdani Charati J., Mohamadiyan M.

International Journal of Occupational Safety and Ergonomics

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2016

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Vol. 22, No. 2

193--198

EN

Background and purpose. Noise-induced hearing loss (NIHL) is among the most prevalent and preventable work-related disorders. This study was conducted to evaluate the prevalence and severity of NIHL in bus and truck drivers of Mazandaran province in north Iran. Materials and methods. In a cross-sectional descriptive study, 2283 drivers were examined clinically and para-clinically, including measuring their fasting blood sugar, triglyceride and cholesterol levels. All participants were evaluated for the air and bone thresholds of both ears. Twenty-three individuals were excluded from the study because of conductive hearing loss. Data from 2260 drivers were analyzed using SPSS version 18. Results. Of the drivers, 37.5% had hearing loss in the right ear and 41.8% of the drivers had hearing loss in the left ear in one or more frequencies of sound. Hearing loss was significantly more frequent in the left ear and in 6000 Hz followed by 4000 Hz. Conclusion. Our study showed that the prevalence and severity of NIHL is high in drivers of Mazandaran province. There was a correlation between hearing loss and age and driving work history. We recommend considering hearing conservation programs more seriously.

7

Noise in the industry – threat for health

Irimia A., Găman G. A., Simion S., Călămar A., Pupăzan D.

Management Systems in Production Engineering

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2015

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nr 3 (19)

138--141

EN

The success of certain industrial activities bring both benefits and negative effects such as pollution, occupational diseases, exposure of workers and residents of neighboring areas and high risk in case of technological failure. An undesirable effect of industrial activity which may be considered a threat to workers and residents in the immediate vicinity of industrial sites is the noise. Due to the presence of technology in all activities, is a major problem considering its nature and harmful repercussions on health. Hearing loss and deafness caused by occupational exposure to noise at work are the most common occupational diseases that occur in the European Union. The development of modern technology by increasing the power and speed of the technical equipment, contributed to diversify and increase the number of sources of noise and vibration, and thus to increase the number of people exposed. This paper analyzes the effect of noise from industrial equipment and health risks.

PL

Sukces w działalności przemysłowych przynosi zarówno korzyści, jak i negatywne zjawiska, takie jak zanieczyszczenie, choroby zawodowe, ekspozycja pracowników bezpośrednich oraz sąsiedztwa zakładów przemysłowych na ryzyko związane z awariami, katastrofami technologicznymi. Niepożądanym efektem działalności przemysłowej, który może być uznany za zagrożenie dla pracowników oraz otoczenia zakładów jest hałas. Z uwagi na obecność technologii w większości działań, głównym problemem wynikającym z natury hałasu są jego negatywne skutki zdrowotne. Ubytek słuchu czy głuchota spowodowane ekspozycją na hałas w miejscu pracy są najczęściej występującymi chorobami zawodowymi w Unii Europejskiej. Rozwój nowoczesnej technologii poprzez wzrost wydajności i szybkości działania wyposażenia wpływa na dywersyfikację i wzrost liczby źródeł hałasu i wibracji a tym samym oddziałuje na większą liczbę osób. W artykule przedstawiono oddziaływanie hałasu pochodzącego z maszyn oraz zagrożenia zdrowotne.

8

Determining the effect of worker exposure conditions on the risk of hearing loss in noisy industrial workroom using Cox proportional hazard model

Aliabadi M., Fereidan M., Farhadian M., Tajik L.

International Journal of Occupational Safety and Ergonomics

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2015

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Vol. 21, No. 2

201--206

EN

In noisy workrooms, exposure conditions such as noise level, exposure duration and use of hearing protection devices are contributory factors to hearing loss. The aim of this study was to determine the effect of exposure conditions on the risk of hearing loss using the Cox model. Seventy workers, employed in a press workshop, were selected to study their hearing threshold using an audiometric test. Their noise exposure histories also were analyzed. The results of the Cox model showed that the job type, smoking and the use of protection devices were effective to induce hearing loss. The relative risk of hearing loss in smokers was 1.1 times of non-smokers The relative risk of hearing loss in workers with the intermittent use of protection devices was 3.3 times those who used these devices continuously. The Cox model could analyze the effect of exposure conditions on hearing loss and provides useful information for managers in order to improve hearing conservation programs.