基于印度地下煤矿LHD车辆现场研究的WBV暴露相关健康风险边界临界评估

IF 0.8 Q4 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH Indian Journal of Occupational and Environmental Medicine Pub Date : 2024-07-01 Epub Date: 2024-09-30 DOI:10.4103/ijoem.ijoem_303_23
Amit Sharma, Bibhuti B Mandal
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引用次数: 0

摘要

目的:采矿部门在满足全球资源需求方面起着关键作用,因此需要广泛使用重型挖土机械。其中,载重倾卸(LHD)采矿车是至关重要的,但在工作期间,操作员会受到全身振动(WBV)和冲击。研究表明,职业性接触白腹病毒会带来潜在的健康风险,包括肌肉骨骼疾病。评估这些风险通常采用ISO 2631- 1:20 97,然而,在解决长期暴露和冲击影响方面存在局限性。方法:本研究采用ISO 2631-5:2018对印度地下煤矿LHD操作员的健康风险进行量化,并与ISO 2631- 1:20 97进行比较。两个标准对WBV进行风险量化的方法不同,需要进行综合比较。此外,还进行了一项横断面研究,以评估LHD手术者自我报告的肌肉骨骼疼痛。结果:根据频率加权均方根(RMS)值、振动剂量值(VDV)、日压缩剂量(Sd A)和损伤风险因子(RA)对结果进行比较。使用A(8)、VDV、Sd A和RA进行的评估产生了不同的评价,尽管存在重大风险,但对职业健康的不同观点产生了影响。ISO 2631-5:2018始终表明,与ISO 2631- 1:20 97相比,LHD操作员的健康风险更低。座椅有效振幅传递率(Seat)值在4 ~ 8 Hz范围内表现出振动放大。自我报告的肌肉骨骼疼痛表明操作者普遍存在不适。结论:该研究强调在解释结果和制定指导方针时要谨慎行事,以确保通过采矿业工人的福祉实现可持续发展。
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A Critical Assessment of Boundary Limits of Health Risks Associated with WBV Exposure Based on Field Studies on LHD Vehicles in Indian Underground Coal Mines.

Purpose: The mining sector plays a pivotal role in meeting global resource demands, necessitating the extensive use of heavy earth-moving machinery (HEMM). Among these, load-haul-dump (LHD) mining vehicles are vital but expose operators to whole-body vibration (WBV) and shocks during their duties. Research indicates potential health risks associated with occupational WBV exposure, including musculoskeletal disorders. Evaluating these risks typically employs ISO 2631-1:1997, which, however, has limitations in addressing long-term exposure and shock effects.

Methods: This study quantifies the health risks of LHD operators in Indian underground coal mines using ISO 2631-5:2018 and compares it to ISO 2631-1:1997. The methods for risk quantification from WBV vary between the two standards, leading to a comprehensive comparison. In addition, a cross-sectional study was undertaken to assess self-reported musculoskeletal pain among LHD operators.

Results: The results were compared in accordance with frequency-weighted root mean square (RMS) values, vibration dose values (VDV), daily compressive dose (Sd A), and the risk of injury (RA) factor. The assessment using A(8), VDV, Sd A, and RA produced diverse evaluations, influencing varying perspectives on occupational health despite significant risks. ISO 2631-5:2018 consistently suggested a lower health risk for LHD operators as opposed to ISO 2631-1:1997. Seat effective amplitude transmissibility (SEAT) values showed amplification of vibration in the range of 4-8 Hz. Self-reported musculoskeletal pain indicated the prevalence of discomfort among operators.

Conclusion: The study emphasizes a cautious approach when interpreting results and shaping guidelines to ensure sustainable development through the well-being of mining industry workers.

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来源期刊
Indian Journal of Occupational and Environmental Medicine
Indian Journal of Occupational and Environmental Medicine PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH-
CiteScore
1.60
自引率
0.00%
发文量
25
期刊介绍: The website of Indian Journal of Occupational and Environmental Medicine aims to make the printed version of the journal available to the scientific community on the web. The site is purely for educational purpose of the medical community. The site does not cater to the needs of individual patients and is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her existing physician.
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