OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (3): 301-306.

• Treatise • Previous Articles     Next Articles

Investigation on the current status of noise hazard in workplace in Yubei District of Chongqing City

LI Chunlin, LI Wen, LUO Lin()   

  1. Chongqing Yubei District Center for Disease Control and PreventionChongqing 401120,China
  • Received:2025-05-12 Revised:2025-07-16 Online:2026-02-01 Published:2026-03-06
  • Contact: LUO Lin,E-mail:594098218@qq.com

Abstract:

Objective To understand the hazards of noise in the workplace in Yubei District and provide a basis for noise prevention and control for regulatory authorities through the field investigation and monitoring of the noise hazards in the workplace in key industries in Yubei District of Chongqing City. Methods According to the project of "2023 Chongqing Yubei District workplace occupational-disease-inductive factors monitoring work",66 companies were included in this study. The basic information and the status of occupational supervision were collected by field investigation,the noise intensity of the work site was monitored on site,and the data were analyzed. Results There were 7 849 workers exposed to the occupational-disease-inductive factors in 66 enterprises,among whom 6 928 were exposed to noise,account for 88.3%. There were statistically significant differences in the number of people exposed to occupational hazards,the distribution of people exposed to noise,and the training rate of people exposed to occupational hazards among different enterprise sizes,economic types,and industry classifications(all P<0.05). With the increase of enterprises size,the situation of excessive noise gradually increases,but the abnormal rate of occupational health examination for noise gradually decreases,and the difference was statistically significant(P<0.05). The correlation analysis of the abnormal rate of noise occupational health examination found that the abnormal rate of noise occupational health examination was related to the situation of excessive noise and the efficiency of noise prevention facilities and equipment. Conclusion The occupational hazards of noise in Yubei District of Chongqing City are relatively serious. It is necessary to strengthen the supervision and training of occupational health in productive enterprises,especially in the training of occupational health management in micro,small and medium enterprises,and encourage enterprises to equip effective noise reduction facilities. Implement pre-duty,on-duty and off-duty occupational health examinations,attach importance to and supervise workers to wear noise proof earplugs or earmuffs,and effectively reduce the harm of noise to workers as much as possible.

Key words: Noise, Operational site, On-site investigation

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