Noise Risk Evaluation in the Woodworking Industry: A Study at Bukit Besi, Terengganu
List of Authors
  • Mardhiah A., Nurain Karmila Ashikin M.Z., Nurul Huda K.

Keyword
  • Noise exposure, Woodworking Industry, Sound level meter, Dosimeter, Personal Hearing Protector (PHP)

Abstract
  • This study evaluates the risk of noise exposure in the woodworking industry, focusing on a plywood manufacturing facility in Bukit Besi, Terengganu. The primary objective is to assess both area and personal noise exposure to determine potential health risks, particularly Noise-Induced Hearing Loss (NIHL), and to examine the effectiveness of existing noise control measures. The methodology involves the use of the ICOP 2019 Appendix 1 checklist to identify early indicators of excessive noise, followed by a walkthrough inspection, area noise monitoring using a sound level meter (SLM), and personal noise monitoring using a dosimeter. Observations and interviews are conducted to evaluate current control measures, and mitigation strategies are developed based on the hierarchy of controls. The checklist reveals multiple signs of excessive noise, prompting the need for a formal Noise Risk Assessment (NRA). Area noise monitoring identifies the roller dryer front area as the most hazardous zone, with noise levels reaching 90.4 dB(A), exceeding the Department of Occupational Safety and Health (DOSH) Permissible Exposure Limit (PEL) of 85 dB(A). Personal noise monitoring shows that one worker experiences a daily average exposure of 94 dB(A), also above the PEL. The evaluation of existing controls highlights several shortcomings, including inconsistent use of Personal Hearing Protectors (PHPs), limited application of engineering solutions, and the absence of administrative procedures to manage noise effectively. In response, the study proposes an integrated noise control strategy that includes engineering measures (such as silencers and barriers), enhanced administrative controls (such as job rotation and training), strict enforcement of PPE usage, and environmental improvements to reduce noise levels. This study emphasizes the importance of proactive noise management in the woodworking industry to protect workers’ hearing health and ensure continuous compliance with occupational safety regulations.

Reference
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