Equipment Maintanance – Factor of Professional Noise Exposure Reduction (original) (raw)
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Noise in the Industry - Threat for Health
2015
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. NO...
Analysis and Evaluation of Risks from Exposure to Noise in a Working Environment
Acta Mechanica Slovaca
This paper deals with a proposal of assessment of hearing impairment risk from the point of view of long-term exposure to noise in a selected plant in the Slovak Republic. Measurement and monitoring noise was carried out at two workshops of a mechanical engineering plant: in a "Cutting Center" and in a "Welding Center". A Norsonic sound analyser was used to measure noise exposure. Evaluation of the noise measurement results consisted of the comparison of the measured values with the required values, which are specified, in the relevant legislative regulation (Government Regulation No. 115/2006 Coll., technical standard (STN EN ISO 9612:2010 and Directive (Council Directive 2003/10/EC). The measured results show that the normalized levels of noise exposure, extended by the uncertainty of measurement (U = ± 2,1 dB) at the all workplaces, exceed the limits stipulated by the Slovak Government, all measured professions fall within the fourth category of work activities categorized according to the noise factor. Long-term exposure of the human organism to noise pollution can cause, in addition to hearing impairment, a wide range of other diseases. Very high levels of noise cause hearing impairment, lower levels affect the control system in our body. This paper presents the results of a study aimed at assessing the risks associated with acoustic noise in connection with exposure to noise at the workplace and with its possible negative effects (a risk event) to health and hearing of workers in the engineering industry.
Evaluation of Noise-Induced Hearing Loss on the Workers of one of the Ahvaz Steel Companies
Jundishapur Journal of Health Sciences
Background: Noise-Induced Hearing Loss (NIHL) is a preventable occupational health problem, which is considered among the 10 major work-related illnesses. According to the World Health Organization, repair of noise damage around the world costs four million dollars. Objective: The aim of this study was to determine noise-induced hearing loss in a number of workers of the Kaviyan Steel Industry. Methods: In this descriptive-analytical study being of cross-sectional type, hearing status of 34 male workers was investigated. In the present study, workers were divided to 3 occupational groups; mechanics, turner and millers, and welders, and to determine a more exact noise exposure level based on network methodology, dosimeter was done using a TES 1358 audiometer for each group. Statistical analysis was performed with the SPSS 16 statistical software using correlations, Analysis of Variance (ANOVA) and independentsamples t test. Results: The average age and work experience of the subjects was 36.58 ± 7.48 and 11.11 ± 6.8 years, respectively. No significant relationship was observed between sound pressure level and work experience with hearing loss (P > 0.05), yet a significant relationship was found between the decline in hearing threshold in 3000 Hz, 4000 Hz, and 6000 Hz frequencies in the left ear and a frequency of 8000 Hz in the right ear and work experience (P ≤ 0.05). The relationship between age and Noise-Induced Hearing Loss (NIHL) was significant (P ≤ 0.05). Conclusion: The results showed that even in a situations where people are imposed to lower levels of noise exposure standards, increasing working experience and age may cause hearing loss.
Buletin Farmatera, 2019
Noise, being one of the threats towards occupational health, has exposed 600 million workers globally. The incidence of hearing loss caused by workplace noise is 16% in adults. There are various risk factors of hearing loss. The purpose of this study was to determine the effect of those risk factors on Universal Steel Factory's workshop workers. This is an analytical study with a cross-sectional design. Data were collected through history taking, physical examination and pure tone audiometry for 30 workers. The data obtained were analyzed using Chi-square and Fisher's exact. There was a correlation between hearing loss with age (p = 0.001), working period (p = 0.001), noise intensity (p = 0.004), and smoking habits (p = 0.013). Therefore, age, working period, noise intensity, and smoking habits have influences to the occurrence of noise-induced hearing loss.
Noise As A Risk Factor In The Preparation Of Useful Mineral Substances
ACTA Universitatis Cibiniensis, 2015
Noise from industrial activities is a major problem because of its noxious and its presence in all technological activities. The coal preparation activity from industry, in the presence of risks of exposure to noise, is affecting the health and safety of workers. Occupational hearing loss and deafness caused by exposure to noise at work are the most encountered illnesses occurring in the European Union. This paper examines the main sources of noise in coal preparation technological process and their effects on the human factor.
PubMed, 2021
Background: The biological effects of noise depend on its physical parameters, combination with other hazards, the content of acoustic signals. This article aimed to analyze the difference in biological effects caused by the selection of nonverbal and verbal signals in conditions of a high level of work intensity. Methods: Work conditions, physical characteristics of noise, levels of work intensity were studied among 75 telephone operators and 96 geophone operators. Levels of permanent hearing thresholds, evaluated by pure-tone audiometry, and results of self-estimation of operators' health were compared. The contribution of the content of acoustic signals in the shifting of hearing thresholds was evaluated by the one-way analysis of variance. Results: Selection of acoustic signals in the noise background (< 65 dB), in conditions of high work intensity, causes a significant increase of permanent hearing thresholds in both studied groups comparing to the non-noise exposed population. A combination of the high level of work intensity and distinguishing of nonverbal acoustic messages leads to significant deterioration of health resulting in decreasing of hearing sensitivity and a number of complaints on the state of health (p < 0.05). The content of acoustic signals significantly contributes to the biological effects of the nose. Conclusion: Obtained results testify necessity to revise safe criteria of noise levels for workers, engaged in selection, recognition and distinguishing of acoustic messages in the noise background combined with a high level of work intensity. In case when the energy of the acoustic field cannot be reduced, occupational safety measures should focus on decreasing of work intensity.
Industrial noise and its effects on human hearing
Applied Acoustics, 2002
The effects of industrial noise on hearing loss of workers in Cyprus was studied over the period from 1996 to 1999. Measurements of the noise exposure doses of more than 200 workers from 90 Cypriot industries, ranging from timber to food and beverage were evaluated. Audiometric examinations of the studied workers showed that 27.8% suffered some hearing damage while 7.7% suffered serious hearing loss. #
The Egyptian Journal of Otolaryngology, 2022
Background: Noise pollution, unwanted or excessive sound, is one of the most common nuisances in industrial sectors. In the city of N'Djamena, Chad, workers in power plants are exposed to very high levels of noise, which could have deleterious effects on human health. The purpose of the study is to determine the level of noise pollution and its repercussions in a population of power plant workers. Results: Ninety-two (11.5%) of the 800 workers were included. Their sex ratio was 88 men: 4 women with an outcome of 22. The age range was from 23 to 64 years with an average of 38.7 ± 9.0 years. Forty-seven (51.1%) of the employees had received occupational safety training. The average noise level in the machine rooms was 113.5 ± 4 dB(A). The average duration of exposure to noise was 10.8 ± 8.5 years. Personal protective equipment was worn regularly in 85.9% (n = 79). The consequences of noise pollution were auditory fatigue (38%; n = 35), tinnitus (32.6%; n = 30), hearing loss (15.2%; n = 14), nervousness (45.7%; n = 42), headache (33.7%; n = 31), raised voice (27.1%; n = 25), and insomnia (14.1%; n = 13). Conclusions: The level of noise pollution is relatively high in power plants in N'Djamena, Chad. Hearing effects and an altered quality of life are observed among industrial workers. The acquisition of machines with regulated noise levels is desirable. The audiometric test should be integrated into the follow-up assessment of all employees.