การศึกษาระดับเสียงและอาการผิดปกติจากการสัมผัสเสียงของพนักงานโรงงานผลิตกระดาษ

This cross-sectional descriptive research aimed to study the sound levels, abnormal symptoms and the correlations between abnormal symptoms of noise exposure in workers and sound levels of paper plant. Measurement carried out by using sound level meter and abnormal symptoms questionnaire. The stratified random samples were 155 employees by collecting data during January to March, 2017. The results revealed that the equivalent continuous sound level (Leq) 8 hour work day (TWA) were 75.5-89.4 dB(A). Department of Energy was the area that has sound at the highest level with 89.4 dB (A). Department of Maintenance support was the area that has the lowest sound level with 75.5 dB (A). The minimum sound level (Lmin) to maximum sound level (Lmax) was 71.7-97.9 dB (A). The minimum area of sound level was found at Department of Instant production with 71.7 dB(A) and the maximum area of sound level was found at Department of Chemical recovery production with 97.9 dB(A). The study of abnormal symptoms of noise exposure in workers by interviewing with 1 symptom were 30.32%, two abnormal symptoms were 21.94% and more than or equal three abnormal symptoms were 47.74%. Most of abnormal symptoms were stress, headaches, tinnitus, no concentration and dizzy. The correlations between abnormal symptoms of noise exposure in workers and sound levels of paper plant was no statistically significant. Sound prevention exceeded standard of paper plant should restrict sound level to meet the standard by measuring annually along with monitor abnormal symptoms of workers including study the others factor that correlated with abnormal symptoms. [ABSTRACT FROM AUTHOR]