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 ORIGINAL ARTICLE
Year : 2020  |  Volume : 24  |  Issue : 2  |  Page : 114-118

Whole-body vibration exposure experienced by dumper operators in opencast mining according to ISO 2631-1:1997 and ISO 2631-5:2004: A case study


Department of Occupational Hygiene, National Institute of Miners Health (Ministry of Mines, Government of India), JNARDDC Campus, Amravati Road, Wadi, Nagpur, Maharashtra, India

Correspondence Address:
Mr. Rahul Anup Mishra
Department of Occupational Hygiene, National Institute of Miners Health, Ministry of Mines, Government of India, JNARDDC Campus, RTMN University, Amravati Road, Wadi, Nagpur - 440 023, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijoem.IJOEM_134_19

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The study characterizes whole-body vibration exposure (WBV) experienced by dumper operators in opencast mining in India. Objective: Comparison of WBV risk of dumper operators as per ISO 2631-1 and ISO 2631-5 standard which are based on dominant axis RMS acceleration and estimated static compression dose (Sed), respectively. Method: Field study was conducted for 26 dumper operators. Whole Body Vibration signals were recorded using the tri-axial seat pad accelerometer and WBV data logger. Results: The results showed RMS in range 0.47–1.62 m/s2, total vibration dose value (VDVT) 6.91–21.03 m/s1.75, and Sed values 0.13–1.09 MPa for all 26 dumper operators. It was observed that 23% of dumper operators exposed to high health risk, 73% dumper operators exposed to moderate health risk, and minimal health risk was observed for only dumper operators as per ISO 2631-1:1997. While evaluation based on ISO 2631-5:2004 revealed, only one dumper with high health risk, 27% showed moderate health risk, however, 69% of dumper operators were exposed to minimal health risk. Conclusion: The predicted health risk according to the ISO 2631-1 is higher as compared to ISO 2631-5. ISO 2631-1 methodology has the upper hand during the prediction of WBV health risk as compared to ISO 2631-5. The result showed that ISO 2631-1 methodology was more appropriate than ISO 2631-5 for WBV health risk analysis of dumper operators in Indian mines.






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