汪迪光等(连云港市卫生防疫站)调查132名板金工、冲压工的脉冲噪声对工人身体健康的影响,脉冲噪声强度为104—138dB。工人有耳鸣、耳聋、神衰等自觉症状,其中耳鸣、神衰与对照组比较,有非常显著性差异(P<0.01)。听力检查,28.4％工人的语言听力和50.4％工人的高频听力出现不同程度的损伤。心电图检查。窦性心动过速(11.8％),窦性心律不齐(12.6％),电轴左 Wangdi Guang et al (Lianyungang Health and Epidemic Prevention Station) investigated the impact of impulse noise of 132 metal workers and punching workers on the health of workers. The impulse noise intensity was 104-138 dB. Workers have tinnitus, deafness, Shen Shen and other symptoms, including tinnitus, Shen Su compared with the control group, there was a significant difference (P <0.01). Hearing tests, 28.4% of workers ’language hearing and 50.4% of workers’ HF hearing showed different degrees of damage. Electrocardiogram examination. Sinus tachycardia (11.8%), sinus arrhythmia (12.6%), left axis