The impact of occupational noise exposure on hearing level and its prevention and control measures
10.16066/j.1672-7002.2024.05.006
- VernacularTitle:某冶金制造企业噪声暴露对听力水平的影响
- Author:
Cailing ZHOU
1
;
Zuying HU
;
Yong LI
;
Qi JIN
;
Pingping PAN
Author Information
1. 杭州市职业病防治院职业病科,浙江 杭州 310014
- Keywords:
Noise,Occupational;
Hearing Loss;
hearing protection
- From:
Chinese Archives of Otolaryngology-Head and Neck Surgery
2024;31(5):297-300
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To investigate the impact of noise exposure in metallurgical manufacturing on hearing.METHODS 245 workers exposed to noise in an enterprise and 51 administrative staff were tested for air conduction hearing threshold of pure tones at 0.5-8 kHz in both ears,and the equivalent sound level of workplace noise was measured for 8 hours.The hearing threshold of workers in different jobs was statistically analyzed.RESULTS The hearing threshold of workers exposed to noise at 0.5-8 kHz was significantly higher than that of administrative staff;hearing loss mainly occurred at 4 kHz and 6 kHz;the hearing threshold was positively correlated with working age and age,and the hearing threshold of workers over 40 years old and with working age of more than 6 years were higher than 40 dB HL at both ears at 4 kHz and 6 kHz.CONCLUSION The hearing loss of 4 kHz and 6 kHz is most obvious in noise-exposed workers,and age,working age,and noise exposure intensity were risk factors for hearing loss.It is necessary to strengthen the control of noise sources,attach importance to protective measures such as earplugs,and reduce noise exposure time.
