2011 Ralph Lauren Vehicle noise impact on the driv

Vehicle noise impact on the driver's hearing


, That the whole work and constantly changing work 2.239 * for functions, work to eliminate the blind spot of anti-job, had become urgent to solve the same problem. (Close precision: 1997 a O9 an O2 Revised: 19980306) car noise on hearing the driver to understand the impact of noise on the drivers vehicle impact hearing. I recently carried out 110 car driver hearing tests are summarized below. An object and to observe the group for a construction team car drivers 110, in which the truck driver 31. Lift trucks 41. 25 cranes, forklifts 7, sedan 6 f, aged 22 to 46 years old. Average 33.8 years old. Driving length of service of 1 to 26 years, an average of 10.5 years. Control group for the work environment noise 58 ~ 68dB (A), to work more than 1 year of a chemical fiber factory workshop of non-textile machinery maintenance workers 100, the average age of 3O. 5 years, average length of service for 10 years. Asked in detail about the object observed occupational history, medical history,2011 Ralph Lauren, and the Department of Otolaryngology examination to exclude other causes of hearing loss from the bow f. In the background noise l5 years, three groups of high-frequency hearing loss were detected in 14.3 (4 / 28), 22.6 (12/53) and 27.6 (8 / 29) f length of service with driving growth, detection rate increasing trend, but there is no significant difference (P> O.O5). ND6 pulse with precision sound level meter measured the noise level of each car type. different types of drivers of vehicles with high noise exposure level hearing loss (see Table 1). Table l shows, car noise exposure group and control group were lower than national health standards of industrial noise [85dB (A)],Ed Hardy shirt, high-frequency hearing loss Author: Occupational Disease Prevention, Jiangsu Province, Nanjing 210028 The 7-- ~; 3 car types in Table 1 the level of noise exposure and hearing damage in high-frequency compared with control group, P l00dB ( A)]. Chia-Chu Liu, etc.,Billig Ralph Lauren Polos,Abercrombie fitch deutschland Hospital Foundation, increasing pressure, and there is a dose-response relationship. . Although the car driver, because low levels of noise exposure, hearing loss is not obvious, but has recently been reported in long-term exposure to low doses of noise at the bow [to some extent from the high-frequency hearing loss. : This point can not be ignored. Therefore,Abercrombie Deutschland, hearing car noise is the main factor affecting the driver, the driver in addition to your hearing checked regularly, the need to strengthen personal protection 3