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机械通风多用于防暑、除尘、排毒,但其噪声污染常被忽视。我们在胜利汽修厂环氧树酯粘结组作业点用校准的ND_2精密声级计测噪声,并对3名作业工人进行体检,发现1例噪声聋。现报告如下。患者,男,52岁。粘结作业工龄20年,其间19年用通风机排毒,工作点噪声89.44dB(A)为13年,94.01dB(A)为4年,83.28dB(A)为2年,平均90.61dB(A)。劳动时惯用左耳靠近风口,无防噪声措施。因劳动后
Mechanical ventilation and more for sunstroke, dust, detoxification, but its noise pollution is often overlooked. We measured noise at a calibrated ND2 precision sound level at the Epoxy Adhesive Group worksite at Shengli Automotive Factory and conducted physical examinations on three workers and found that 1 patient was deaf. The report is as follows. Patient, male, 52 years old. Bonding operation for 20 years, during which 19 years with a ventilator detoxification, the work point noise 89.44dB (A) for 13 years, 94.01dB (A) for 4 years, 83.28dB (A) for 2 years, an average of 90.61dB (A ). Left-handed labor near the tuyere, no anti-noise measures. After work