论文部分内容阅读
为观察长期接触噪声对人体健康的损害,对接触噪声85dB以上的201名工人进行了调查。201名工人中男48人,女153人.平均工龄6年,年龄21～44岁,排除耳疾及耳毒药物史。噪声源为沥青车间的油泵和空压机,编织车间的织布机,制桶车间的切板机、压力机、卷桶机等。使用经校准的ND_2精密声级计,依据《辽宁省劳动卫生监测规范》测量。测定结果噪声强度85～98dB,根据各岗位接触噪声时间换算成等效连续A声级(dBA)为77～98dB(A)。调查结果神经衰弱综合征发生率51％;耳鸣15.4％;血压增高2％,心动过速1％。耳科检查鼓膜改变为
In order to observe the damage to human health caused by prolonged exposure to noise, 201 workers who had a contact noise of 85 dB or more were surveyed. Among 201 workers, there are 48 males and 153 females, with an average length of 6 years and a mean age of 21 to 44 years, excluding ear diseases and ear drug drug history. Noise sources for the asphalt workshop pumps and air compressors, knitting shop weaving machine, the workshop of the cutting board machine, presses, drum machines and so on. Using a calibrated ND2 precision sound level meter, measure according to the “Liaoning Province Labor Sanitation Monitoring Code”. The measured noise intensity is 85 ~ 98dB, which is converted into the equivalent continuous A sound level (dBA) of 77 ~ 98dB (A) according to the contact noise time of each post. Findings The incidence of neurasthenic syndrome was 51%; tinnitus was 15.4%; blood pressure was increased by 2% and tachycardia was 1%. Otology check tympanic membrane changed to