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[目的]评估听力保护计划在金属制品行业的实施效果。[方法]选取28家金属制品企业推行听力保护计划,内容包括噪声监测、听力测试、噪声控制、护听器使用和职工培训等五方面。[结果]听力保护计划实施2年后,企业在噪声工程防护、工人护听器使用和工人培训教育方面均较计划实施前有改善,作业场所噪声监测合格率有逐年上升趋势(P<0.05)。实施听力保护计划2年后,新上岗工人暂未出现高频标准听阈位移(HSTS),已在岗接噪作业工人发生HSTS的共有6人,占在岗工人总数2.27%。[结论]听力保护计划是一项综合的噪声防治策略,能有效地防止职业性噪声聋的发生,而管理者的重视和措施的落实是计划有效实施的保证。
[Purpose] To evaluate the effectiveness of hearing protection programs in the metal products industry. [Methods] The 28 metal products companies selected hearing protection plan, including noise monitoring, hearing test, noise control, the use of hearing aids and staff training. [Results] After two years of implementation of the hearing protection plan, the enterprises improved their noise engineering protection, worker’s hearing aids and workers’ training and education before the implementation of the plan. The passing rate of workplace noise monitoring increased year by year (P <0.05) . Two years after implementation of the hearing protection plan, no new high-frequency standard hearing threshold shift (HSTS) is yet to be found for newly recruited workers. There are 6 HSTS workers on the job and 2.37% of the total number of workers on the job. [Conclusion] The hearing protection plan is a comprehensive noise prevention and cure strategy that can effectively prevent the occurrence of occupational noise and deafness. However, the manager ’s attention and the implementation of the measures are the guarantee of the effective implementation of the plan.