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一、噪声的危害噪声对人体健康的影响是多方面的,表现最为明显的是对听觉器官的损伤。长时期在高强噪声环境下工作可导致职业性耳聋,即噪声性耳聋。按国际标准组织的定义,听力损失在500Hz、1000Hz和2000Hz三个频率上的平均听力损失超过25dB以上称为噪声性耳聋。引起噪声性耳聋的发病因素与噪声强度、频率及暴露时间有关。噪声强度越大,频率越高,噪声时间越长,噪声性耳聋的发病率就越高。大量的
First, the harm of noise The impact of noise on human health is multifaceted, the most obvious manifestation of the auditory organ damage. Long-term work in high-intensity and noise environment can lead to occupational deafness, that is, noise-induced deafness. According to the International Organization for Standardization, the average hearing loss of hearing loss at three frequencies of 500Hz, 1000Hz and 2000Hz is more than 25dB, which is called noise-induced deafness. The causes of noise-induced deafness and noise intensity, frequency and exposure time. The greater the noise intensity, the higher the frequency and the longer the noise, the higher the incidence of noise-induced deafness. Lots of