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目的观察纺织厂不同车间工人个体噪声暴露测量数据的分布规律。方法用SH-126记录式声级计测量工人8 h等效连续A声级(L_(Aeq·8h)),分层后观察各车间L(Aeq·8h)的分布特点,并计算L(Aeq·8h)的均数、几何均数、中位数、偏度和峰度,做Kolmogorov-Smirnov正态性检验。结果布机车间、细纱车间和前纺车间工人个体噪声暴露L(Aeq·8h)测量数据的构成均接近于正态分布,偏度小于±0．5,峰度为0．119～1．232,Kolmogorov-Smirnov正态性检验的P值均大于0．20,L(Aeq·8h)的均数、几何均数和中位数非常接近。结论纺织厂工人个体噪声暴露测量的数据基本符合正态分布。
Objective To observe the distribution of individual noise exposure measurement data in different workshops of textile mills. Methods The 8-h equivalent continuous A-sound level (Aeq.8h) of workers was measured by SH-126 recording sound level meter. The distribution characteristics of L (Aeq.8h) in each workshop were observed after stratification and L · 8h) mean, geometric mean, median, skewness and kurtosis Kolmogorov-Smirnov normal test. Results The individual noise exposure L (Aeq · 8h) of cloth workshop, spinning workshop and front spinning workshop were all close to the normal distribution with skewness less than ± 0.5 and kurtosis of 0.119 ~ 1.232 , P values of Kolmogorov-Smirnov normality test are all greater than 0.20, and the mean, geometric mean and median of L (Aeq · 8h) are very close. Conclusion The data of individual noise exposure measurements of textile workers are basically in accordance with the normal distribution.