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生产噪声是致聋的重要原因。随着科学技术的进步,工农业生产的发展,噪声污染日渐突出,引起世界各国的严重关切。最近我们应邀对某毛巾厂进行了噪声调查,并对两个车间的154名工人进行了耳镜和听力检查,为此首先使用国产ND_2型精密声级计和倍频程滤波器对车间进行了噪音强度测验和频谱分析。测得二车间的噪声强度为96～102分贝(A声级),三车间为68～99分贝(A声级)。
Production noise is an important cause of deafness. With the progress of science and technology and the development of industrial and agricultural production, the noise pollution has become increasingly prominent, arousing serious concern of all countries in the world. Recently we were invited to conduct a noise survey of a towel factory and conducted otoscopic and audiological examinations of 154 workers in both workshops. To this end, we first conducted a workshop using a domestic ND 2 type precision sound level meter and octave filter Noise Intensity Test and Spectrum Analysis. The noise intensity measured in the second workshop was 96 to 102 dB (A sound level), and the third workshop was 68 to 99 dB (A sound level).