工业企业噪声危害的综合评价方法

Study on comprehensive evaluation for noise hazard in industrial enterprises

目的 研究工业企业生产性噪声危害的综合评价方法。方法 选择某市 7个工业行业的 2 2个工业企业为研究对象 ,测定生产性噪声强度和噪声作业人员的听力 ,按照平均声压级的计算方法求得平均等效声级 ,并与噪声作业人员的听力损失检出率进行方差分析、相关分析和曲线拟合。结果 听损检出率随平均等效声级的增加而呈明显的增加趋势 ,平均等效声级与噪声作业人员的听损检出率呈密切的指数正相关关系 (相关系数r为 0 812 45 )。结论 平均等效声级可以作为评价和比较工业企业的噪声危害程度的综合指标。

Objective To study the comprehensive evaluation methods for noise hazard of industrial enterprises.Methods We chose 22 factories which belong to seven industries,determined the intensity of industrial noise and hearing of exposed workers.We calculated the average equivalent sound level and the detectable rate of workers hearing loss and made variance analysis,correlation analysis and fitted curve between them.Results The average equivalent sound level and the detectable rate of workers hearing loss were exponential positive correlation,the coefficient of correlation r was 0 812 45.Conclusion The average equivalent sound level maybe as comprehensive index to evaluate the noise hazard in industrial enterprises.