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随着现代化工业的发展,噪声危害日益严重。长期在噪声环境下工作,由于不断地受到噪声刺激,会使听力衰退,严重时还会造成噪声性耳聋或完全失去听力。一般说,经常在90分贝(A)以上的噪声环境下工作,就可能发生噪声性耳聋。除此之外,噪声还会对人的神经系统产生影响,出现头痛、头晕、耳呜、多梦、失眠、乏力、记忆力减退、心悸、恶心等症状。在强噪声的长期影响下,也会使人们产生心跳加快、心律不齐、血管痉挛、血压升高、消化不良等症状。为此,噪声被人们视为致人死命的慢性“毒物”,并被列为国际公害,甚至有
With the development of modern industry, the noise damage is becoming increasingly serious. Long-term work in noisy environments, due to constant noise stimulation, can lead to hearing loss, severe noise-induced deafness or complete loss of hearing. In general, noise-induced deafness can occur when working regularly in noisy environments above 90 dB (A). In addition, the noise will also affect the human nervous system, headache, dizziness, tinnitus, dreams, insomnia, fatigue, memory loss, heart palpitations, nausea and other symptoms. Under the long-term influence of strong noise, people will also have the symptoms of rapid heartbeat, arrhythmia, vasospasm, high blood pressure and indigestion. For this reason, noise is regarded as a chronic “poison” causing death and is classified as an international public hazard. There are even