scholarly journals Occupational Exposure of Noise Level in Opencast Iron Ore Mines in India

2018 ◽  
Vol 13 (3) ◽  
pp. 353-359
Author(s):  
ANAND ARUN DESHMUKH ◽  
SHIVKUMAR SHRINARAYAN PRAJAPATI ◽  
RAHUL ANUP MISHRA
Keyword(s):  
Iron Ore ◽  
Noise Exposure ◽  
Health Hazard ◽  
Preventive Measure ◽  
Industry Sector ◽  
Directorate General ◽  
Warning Limit ◽  
Job Category ◽  
Similar Exposure Groups ◽  
Workplace Noise

Mining in general has become essential industry sector for the sustaining growth of any developing country. In India iron ore mining is mainly mechanised and well developed industry sector, using highly mechanised equipments and technology for excavation and processing of mined iron ore. It is due to this reason iron ore mining seen as a one of the major sector responsible for workplace occupational health hazard particularly for noise related health impacts on workers health. The objective of this study was to ascertain the job specific noise exposure among the Similar Exposure Groups (SEGs). Total 133 personal noise dosimeter samples were collected from different job category and working areas of iron ore mining and processing sector. It was observed that the participated workers in the crushing area were exposed to 81.64 dB (A), Heavy Earth Moving Machineries (HEMM) operators 86.10 dB (A), loading plant workers 83.76 dB (A), screening plant workers 87.62 dB (A) and mines operation and workshop workers 84.92 dB (A). During the study specifically HEMM operators were highly exposed to workplace noise, with 46% samples exceeding warning limit and 18% exceeding danger limit prescribed by Directorate General of Mines Safety (DGMS), Government of India. It was felt necessary to augment the awareness and safety training to the workers for proper implementation of preventive measure for workplace noise exposure.

scholarly journals More to Lose? Noise-Risk Perceptions of Young Adults with Hearing Impairment

2017 ◽  
Vol 38 (04) ◽  
pp. 319-331
Author(s):  
Deborah Black ◽  
Lyndal Carter
Keyword(s):  
Young Adults ◽  
Hearing Impairment ◽  
Hearing Aids ◽  
Risk Perceptions ◽  
Injury Risk ◽  
Noise Exposure ◽  
Peer Group ◽  
Health Hazard ◽  
Leisure Activities ◽  
Chi Square

AbstractThis study investigated the attitudes and behaviors of young adults with hearing impairment (HI), in relation to leisure noise. It was hypothesized that young people with HI would have more negative perceptions of noise exposure than their peers with nonimpaired (normal) hearing (NH) and would engage more frequently in self-protective behaviors. Questionnaires were administered as part of a larger study of young Australians with: (1) preadult onset HI and (2) NH. Data from adults (age range 18 to 24 years; n = 79 with HI, n = 131 with NH) were selected for the current analysis. Attitudes data for HI and NH groups were compared using chi-square tests, and the reported use of hearing aids and personal hearing protectors (PHPs) in leisure environments was quantified. Most participants with HI and NH regarded leisure noise as a health hazard but rated their own noise-injury risk as lower than that of their peer group. The use of PHPs was low overall, and many participants with HI reported using hearing aids (switched on) during noisy leisure activities. An equal and substantial proportion of participants with HI and NH reported dislike and avoidance of loud activities. Systematic noise management in leisure environments would address noise-injury risk and also enhance social participation.

scholarly journals Encountering automation: Redefining bodies through stories of technological change

2020 ◽  
pp. 026377582096312
Author(s):  
David Bissell
Keyword(s):  
Technological Change ◽  
Knowledge Production ◽  
Iron Ore ◽  
Mining Sector ◽  
Generative Process ◽  
Industry Sector ◽  
Making Sense ◽  
Complex Picture

This article enhances our understanding of the thoroughly embodied nature of knowledge production in relation to automation by demonstrating how making sense of automation is a generative process, rather than the demystification of an already existing object of analysis. It argues that the process of knowing automation involves situated encounters that transform bodies at the level of their indeterminate capacities to affect and be affected which, in turn, contributes to the production of what automation is. Contrasting with more generalised diagnoses about how automation is deskilling or reskilling bodies, it evaluates the constitutive role of situated encounters that register in sensing bodies for reshaping capacities. Focusing on iron ore mining in Australia, an industry sector that is currently increasing its automated operations, the paper draws on a series of fieldwork encounters with people differently positioned in the mining sector. Through the presentation of five stories that incorporate combinations of these fieldwork encounters, the paper constructs a more complex picture of how automation is redefining different bodies. Rather than taken to be mere representations of automation, it argues that the listening to and telling of stories about automation is a form of encounter that redefines bodies in the process.

scholarly journals Prevalence of Hearing Loss in Military Aviators: The Audiometry and Risk Factors Analysis

2014 ◽  
Vol 9 (1) ◽  
pp. 19-24
Author(s):  
MR Alam ◽  
MA Wahab ◽  
MM Rahman ◽  
AKM Asaduzzaman ◽  
MAS Al-Azad ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hearing Loss ◽  
Noise Exposure ◽  
Health Hazard ◽  
Hearing Threshold ◽  
Armed Forces ◽  
Cross Sectional Study ◽  
Noise Induced Hearing Loss ◽  
Cross Sectional ◽  
Medical Checkup

Introduction: Noise Induced Hearing Loss (NIHL) is an occupational health hazard linked with noise exposure of more than 85 dB. Aircraft noise and other occupational noise exposure cause military aviators more susceptible to NIHL than commercial jet pilots. Aim: To find out the prevalence of noise induced hearing loss among different military aircrew population with special emphasis on identifying the associated risk factors. Materials and Methods: This cross sectional study was conducted on Kuwait Air force pilots those who came for annual medical checkup from July 2010 to July 2012. Audiometry of all subjects was done by ENT specialist and necessary data were collected by structured questionnaires. All data were analyzed by SPSS (Statistical Package for the Social Sciences) version 17.0 Results: Out of 221 aircrew 32 (14.48%) developed NIHL. Hearing loss was mild to moderate and predominately at high frequencies. Most affected group was helicopter pilots. Pilots of more than 40 years of age and those who had more than 1000 flying hours had mean hearing threshold more than other groups. The right ear was affected in majority of cases than left ear. Conclusion: Noise exposure to aircrew is inevitable so hearing loss prevention strategies might play a pivotal role to save aircrew hearing. Active surveillance of hearing protection practices might have beneficiary effect. Steps can be taken for early detection of NIHL and hearing conservation program. DOI: http://dx.doi.org/10.3329/jafmc.v9i1.18721 Journal of Armed Forces Medical College Bangladesh Vol.9(1) 2013: 19-24

Assessment of the Noise Levels inside a Machine Shop for Occupational Safety

2016 ◽  
Vol 841 ◽  
pp. 41-46
Author(s):  
Adina Cristina Toma ◽  
Ioana Luminita Dragasanu ◽  
Marius Deaconu ◽  
Dragos Mihai
Keyword(s):  
Occupational Safety ◽  
Noise Exposure ◽  
Working Hours ◽  
Research Approach ◽  
Health Issues ◽  
Noise Levels ◽  
Machine Shop ◽  
Industry Sector ◽  
Wide Range ◽  
Concert Halls

Commonly, millions of employees are exposed to occupational health issues, including noise exposure during working hours. Noise is most encountered in industry sector but can also be found in a wide range of other workplaces (airports, concert halls, offices, etc). In this article, we review the noise levels inside a machine shop, for a single working place, with the scope to assess the occupational safety, discuss research approach in identifying the noise issues, control and reduce it. Generally, noise exposure is an expensive issue, with many particularities to be solved and the exact cost is difficult to calculate. This study offers the perspective of what can be done for similar working places and how to perform this in order to protect the employees to be noise exposed above the legal noise limits and relevant conclusions are offered in this direction.

scholarly journals Exposure of cigarette smoke aggravates noise induced kidney damage

2020 ◽  
Vol 10 (2) ◽  
pp. e12-e12
Author(s):  
Jamshid Alizadeh ◽  
Zohre Jaffarzadeh ◽  
Kambiz Ahmadi Angali ◽  
Massumeh Ahmadizadeh
Keyword(s):  
Oxidative Stress ◽  
Renal Function ◽  
Cigarette Smoke ◽  
Noise Exposure ◽  
Health Hazard ◽  
Male Rats ◽  
Sodium Pentobarbital ◽  
Biochemical Tests ◽  
Sound Exposure ◽  
The Impact

Introduction: Noise is defined as an interfering and unwanted sound. Exposure to noise induces health problems in humans and animals. Cigarette smoke (CS) has also been known to cause serious problems in health hazard and leads to many kinds of diseases. However, the effects of these agents on the kidney are poorly studied. Objectives: The current study purposes to investigate the impact of noise and/or CS on rat’s kidney Materials and Methods: Four groups of six Wistar adult male rats were used. They randomly were divided into four groups of rats. The first group was used as control. The second group was exposed to noise. The third group was exposed to cigarette smoking and the fourth group was exposed to both noise and CS. The experiments were repeated for two weeks (five days per week). Twenty-four hours after last exposure, the animals were killed by sodium pentobarbital overdose. Renal function was evaluated by the determination of blood urea nitrogen (BUN) and creatinine levels. Oxidative stress was estimated by glutathione (GSH) and malondialdehyde (MDA) assays. Results: The concentrations of BUN and creatinine remarkably raised (P ≤ 0.05) in all groups compared to those in control rats. However, elevations of the biochemical tests were more predominant in rats exposed to combined noise and CS. Elevation of MDA was observed in all exposed rats, while it was more pronounced in the animals exposed to the combined noise and CS when compared to control, CS or noise exposure rats alone. The level of GSH decreased in all exposed groups. It was more obvious in rats exposed to the combined noise and CS when compared to those of control and exposure rats to noise or CS separately. Conclusion: Exposure to noise or CS impaired renal function. Generation of oxidative stress at least in part may be responsible for their nephrotoxicity. Our findings demonstrated CS aggravated noise induced impairment of renal function.

Assessment of the risk of health disorders when working in an open area during the cold period of the year

2020 ◽  
Vol 60 (11) ◽  
pp. 857-859
Author(s):  
Ekaterina M. Polyakova
Keyword(s):  
Work Environment ◽  
Noise Exposure ◽  
Health Hazard ◽  
A Priori ◽  
Occupational Risk ◽  
Work Place ◽  
Open Area ◽  
Industrial Noise ◽  
Health Disorders ◽  
The Impact

Introduction. Oil industry workers are exposed to some work environment factors of specific natural and climatic conditions. The aim of study is to conduct an assessment of the group occupational risk of health disorders in the conditions of working in open territories in cold seasons. Materials and methods. The object of the study was workers who carry out labor operations in an open area during cold seasons: operators of a desalting and dehydrating unit, mechanists of compressor units, mechanists for pumping a working agent into the reservoir and repairmen of the oil producing company located in Western Siberia. The assessment of a priori group risk from the impact of industrial noise, exposure to chemicals in the air of the work environment, while body vibration, factors of the work environment and the climate of cold seasons in the conditions of working in open areas and in unheated rooms was carried out according to the combined model of professional risk assessment developed by A.V. Meltser, A.V. Kiselev. Results. We ranked the workplaces of the studied professional groups according to the degree of health hazard. It has been established that the greatest danger, from the point of view of the methodology of professional risk, is the workplace of an operator of the central tank desalting and dehydrating unit of the oil preparation and delivery unit. The leading factor for the development of occupational and nonspecific pathology within a studied enterprise is industrial noise. At the same time, the climate in cold seasons in the conditions of working in open areas makes a significant contribution to the development of occupational and nonspecific pathology. Conclusions. Assessment of the a priori occupational risk of health disorders among oil company workers engaged in labor operations in an open area during a cold season made it possible to establish priority work place in which it is advisable to carry out priority medical and preventive measures. The implemented system of hygienic assessment of occupational factors should take into account the effect of the climatic and weather conditions on workers’ health in the region of residence.

scholarly journals Workplace noise exposure and the prevalence and 10-year incidence of age-related hearing loss

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0255356
Author(s):  
Bamini Gopinath ◽  
Catherine McMahon ◽  
Diana Tang ◽  
George Burlutsky ◽  
Paul Mitchell
Keyword(s):  
Older Adults ◽  
Hearing Loss ◽  
Noise Exposure ◽  
Later Life ◽  
Occupational Noise ◽  
Severe Hearing Loss ◽  
Occupational Noise Exposure ◽  
Age Related ◽  
Age Related Hearing Loss ◽  
Workplace Noise

There is paucity of population-based data on occupational noise exposure and risk of age-related hearing loss. Therefore, we assessed cross-sectional and longitudinal associations of past workplace noise exposure with hearing loss in older adults. At baseline, 1923 participants aged 50+ years with audiological and occupational noise exposure data included for analysis. The pure-tone average of frequencies 0.5, 1.0, 2.0 and 4.0 kHz (PTA0.5-4KHz) >25 dB HL in the better ear, established the presence of hearing loss. Participants reported exposure to workplace noise, and the severity and duration of this exposure. Prior occupational noise exposure was associated with a 2-fold increased odds of moderate-to-severe hearing loss: multivariable-adjusted OR 2.35 (95% CI 1.45–3.79). Exposure to workplace noise for >10 years increased the odds of having any hearing loss (OR 2.39, 95% CI 1.37–4.19) and moderate-to-severe hearing loss (OR 6.80, 95% CI 2.97–15.60). Among participants reporting past workplace noise exposure at baseline the 10-year incidence of hearing loss was 35.5% versus 29.1% in those who had no workplace noise exposure. Workplace noise exposure was associated with a greater risk of incident hearing loss during the 10-year follow-up: multivariable-adjusted OR 1.39 (95% CI 1.13–1.71). Prior occupational noise exposure was not associated with hearing loss progression. Workplace noise exposure increased the risk of incident hearing loss in older adults. Our findings underscore the importance of preventive measures which diminish noise exposure in the workplace, which could potentially contribute towards reducing the burden of hearing loss in later life.

scholarly journals Health Effects of Occupational Noise

2021 ◽  
Author(s):  
Anna Pretzsch ◽  
Andreas Seidler ◽  
Janice Hegewald
Keyword(s):  
Cardiovascular Disease ◽  
Pregnancy Outcomes ◽  
Noise Exposure ◽  
Occupational Noise ◽  
Response Relationship ◽  
Dose Response Relationship ◽  
Quality Research ◽  
Occupational Noise Exposure ◽  
Work Related ◽  
Workplace Noise

Abstract Purpose of Review Workplace noise negatively impacts health, and noise-induced hearing loss is the most common work-related disease in many countries. Occupational noise may also cause cardiovascular disease, and there is epidemiologic evidence on the non-auditory effects of noise. This paper aims to briefly present and summarize the latest evidence on the auditory and non-auditory health effects of occupational noise exposure from the last 5 years. Recent Findings Two systematic reviews assessing the cardiovascular effects of occupational noise exposure were published in the last year. Our own recent review found convincing evidence of an association between occupational noise exposure > 80 dB(A) and hypertension and a dose-response relationship between noise exposure and hypertension risk. Another review of cardiovascular disease conducted by the World Health Organization (WHO) and the International Labour Organization (ILO) found an increased risk of incident ischemic heart disease at noise exposures ≥ 85 dB(A). Recent reviews on work-related injuries, diabetes, acoustic neuroma, and pregnancy outcomes also find noise-related associations. Summary Evidence of an association between occupational noise and cardiovascular outcomes was recently evaluated. We found the risk of hypertension increases with a clear dose-response relationship at noise levels > 80 dB(A). The WHO/ILO review highlights the lack of quality research including women. Additional high-quality research on epigenetic effects, oxidative stress, work-related injuries, diabetes, acoustic neuroma, and pregnancy outcomes is also needed. Urgently needed (increased) measures of workplace noise reduction will reduce the incidence of noise-induced hearing loss and help prevent cardiovascular diseases, especially hypertension.

Model of Interactive System for Training in the Proper Use of Hearing Protection Devices

2015 ◽  
Vol 39 (1) ◽  
pp. 11-15
Author(s):  
Paweł Górski
Keyword(s):  
Noise Exposure ◽  
Working Environment ◽  
Interactive System ◽  
Central Institute ◽  
Training Materials ◽  
Video Tutorials ◽  
Hearing Protectors ◽  
Protection Devices ◽  
Environment Noise ◽  
Workplace Noise

Abstract In 2011, over 520 thousand persons worked in hazardous conditions (according to the GUS). Among hazardous factors related to working environment noise was found to be the most common one, threatening 199,6 thousand people (52.9% threats-per-persons related to working environment). The prevalence of workplace noise and increasing awareness of effects of its impact on the human body causes increase of the demand for knowledge of the methods of noise reduction. Due to the lack of knowledge concerning the proper use of hearing protectors, effective noise exposure in the real world may be about a dozen dB higher than the declared assumed protection value. For this reason, in Central Institute for Labour Protection - NRI “The interactive system for learning the correct use of hearing protectors” has been developed. The system includes a multimedia guide on hearing protectors supplemented by video tutorials, training materials with training hearing protectors, and software for evaluation of the activities of the trainee.

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