Background and aim: noise pollution and poor lighting in workplaces can have detrimental effects on workers’ health. The present study aimed to investigate the relationship between Exposure Level to Sound Pressure Level (SPL) and Light Intensity with Occupational Burnout in an Automotive Parts Industry. Methods: This descriptive-analytical study was conducted in 2018 during three consecutive seasons on 50 staff in the administrative section and 50 workers in the assembly section of an automotive parts industry. To collect data in the first stage, Geldard Burnout Inventory (1989) was employed. Data were analyzed by Pearson test, independent T-test, ANOVA and SPSS-22 software. Findings: The mean score of local lighting and equivalent sound pressure level in the exposure group were 274.62 lux and 78.46 dB, respectively. However, the mean scores of local lighting and equivalent sound pressure level in the control group were 396.38 lux and 53.24 dB, respectively. The mean scores of occupational burnout was 141.66 for the exposure group and 62.98 for the control group. The results of statistical analysis showed that there is a significant positive correlation between the mean scores of occupational burnout and the of equivalent sound pressure level (p<0.05). However, no significant correlation was found between mean scores of occupational burnout and age and education (p> 0.05). Conclusion: as the results show, it can be concluded that the study of noise and ambient environment may be important in occupational burnout. So, it is advisable to conduct more research on a larger sample and other workplace harmful factors.
