Hearing Survey of Noise Exposed Workers in A Steel Cord Products Factory in Jiangyin City

[Objective] To understand the hearing loss of noise exposed workers in a steel cord products factory,and provide evidence for adopting effective protection measures against occupational hazards. [Methods]Binaural air conduction audiometry was performed on noise exposed workers,hearing results were modified according to age and sex with GB/T 7582 standard,analysis of hearing loss was based on age groups and service length groups. [Results]7 out of 79 noise monitoring sites points were qualified,the other exceeded national health standards GBZ 2.2-2007.Of 1 040 noise exposed workers,23 workers' binaural high frequency average hearing threshold ≥40dB(HL),occupied 2.21% of total workers.18 were detected suspected occupational hearing loss.Occupational hearing loss showed a growing trend in detection rates increasing with the service length in the same age group. [Conclusion]It is important to control noise intensity in workplace and strengthen the personal protection of workers and occupational health examination,because great degree of hearing loss for noise is found in the steel cord products industry.