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对接触脉冲噪声的锻压工和冲压工进行了调查,其脉冲噪声强度波动在118—135dB(A)之间(峰值),对工人听力已有不同程度的损伤,心电图在低工龄组有改变。本文还分析了脉冲噪声引起听力损失与暴露时间有密切关系,同时对两工种的脉冲噪声还存在较高的背景稳态噪声所产生的复合性噪声进行了讨论。
Forging workers and stamping workers who were exposed to pulsed noise were investigated. The pulsating noise intensity fluctuated between 118-135 dB (A) (peak value), which impaired the hearing ability of workers to some extent. The electrocardiogram changed in the lower working-age group. This paper also analyzes the impulsive hearing loss caused by impulse noise is closely related to the exposure time. At the same time, the complex noise caused by the impulsive noise of the two kinds of work is also discussed.