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噪声广泛存在于各工业门类,为探讨噪声对作业人员心血管系统的影响,我们对某纺织厂130名噪声作业人员及46名非职业接触者的心电图及血压进行了观测,现总结如下:1 对象和方法1.1 观测对象 选择细纱和布机车间130名工人做为观察组,其中男32名、女98名,年龄21～38岁,平均28.6岁。选择本厂不接触生产性噪声的46名后勤人员为对照组,其中男11名、女35名,年龄23～46岁,平均30.2岁。经统计学处理观察组和对照组年龄构成及性别比例差异均无显著性意义。1.2 方法 生产场所用ND—6精密声级计测定A声级,共设测定点21个,声级范围为80～104 dB(A),均值为89.3 dB(A)。
In order to explore the impact of noise on the cardiovascular system of workers, noise is widely observed in various industrial sectors. We observed the ECG and blood pressure of 130 noise workers and 46 non-occupational workers in a textile mill. The results are summarized as follows: 1 Subjects and methods 1.1 Observing objects Select 130 workers in the yarn and cloth workshop as the observation group, including 32 males and 98 females, aged 21 to 38 years, mean 28.6 years old. The 46 logisticians who chose not to have productive noise were selected as the control group, including 11 males and 35 females, aged from 23 to 46 years, an average of 30.2 years old. There was no significant difference in age composition and sex ratio between the observation group and the control group by statistical analysis. 1.2 Methods The production site uses the ND-6 precision sound level meter to determine the A sound level, with a total of 21 measuring points, the sound level range of 80 ~ 104 dB (A), an average of 89.3 dB (A).