The Relationship Between Noise Intensity and Hearing Impairment Among Welding Workshop Workers in Muktiharjo Kidul, Semarang City

Abstract

Background: Noise intensity in the work environment can lead to health problems, particularly impaired hearing function, and decreased worker productivity. A preliminary survey of four welding workshops showed that both the Noise Threshold Limit Value (TLV) and the duration of exposure exceeded the recommended limits, ranging from 1 to 8 hours per day. Objective: This study aimed to analyze the relationship between noise intensity and hearing impairment among welding workshop workers in Muktiharjo Kidul, Semarang City. Methods: This research employed a cross-sectional study design. Data were obtained through observation, interviews, and audiometric examinations. Results: A total of 45% of workers experienced hearing impairment in the right ear, while 40% showed hearing impairment in the left ear. There was a significant relationship between noise intensity and hearing impairment in the right ear (p < 0.05), but no significant relationship was found with hearing impairment in the left ear. Conclusion: There is a relationship between noise intensity and hearing impairment in the right ear, but no significant relationship in the left ear.