The Assessment of Hand Arm Vibration among Stone Mortar Informal Workers in Phichai Subdistrict, Mueang District, Lampang Province
Keywords:
Hand Arm Vibration, Informal Workers, Stone MortarAbstract
Working in an environment with vibration from machinery is increasing the risk for the hand arm vibration syndrome, especially among stone mortar informal workers. The objective of this study was to measure the vibration, evaluate the hazard, and prevalence from exposure to vibration in the arms and hands in 75 stone mortar informal workers from August and September 2023. The tools used to collect data included a general questionnaire and hand arm vibration meters. There were three machines; drilling the stone mortar, stone cutting machine, and decorating both the inside and outside of the stone mortar were measured the hand arm vibration. The results showed that the acceleration values from hand arm vibration of all subjects exceeded the vibration exposure limits including vibration values that informal workers received in one day (8 hours) were also exceeded the vibration exposure limit. These findings would be useful information for further preventing and controlling measure occupational health and safety for working on exposure to vibration including policies and strategies to mitigate the risks for informal stone mortar workers.
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