2010•Guoji yiyao weisheng daobaoRequires access

The combined effects of lead and noise exposure on hearing impairment

Nan-chun Li, Ruimei Chen, LI Zhao-liang, Sijia Liu, Jia-ling Ma

Abstract

Objective To explore the combined effects of lead and noise exposure on hearing impairment in workers, Methods The workers with matched age, length of working, and intensity of noise were chosen to group A (lead and noise exposure) or group B (noise exposure alone). The hearing ability was detected and compared in the two groups. Results As compared with group B, the threshold of hearing increased obviously in group A at 4 KHz and 6 KHz. Conclusions Lead plus niose exposure may worsen the hearing impairment. Key words: Lead; Noise; Combined effect; Hearing impairment

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Key concepts: Audiology, Noise exposure, Noise (video), Lead (geology), Lead exposure, Medicine, Hearing loss, Absolute threshold of hearing