Noise Levels and Hearing Ability of Female Workers in a Textile Factory in Vietnam

An Luong NGUYEN, The Cong NGUYEN, Trinh VAN LE, Minh Hien HOANG, Sy NGUYEN, Hiroshi JONAI, Maria Beatriz G. VILLANUEVA, Shinya MATSUDA, Midori SOTOYAMA, Ayako SUDO
1998 Industrial Health  
Noise and hearing ability profiles were determined in a textile factory in Vietnam. Noise mapping done in the weaving section showed that the noise levels exceeded the Vietnamese standard of 90 dBA by as much as 9 dBA in some areas. Audiometric tests performed on 69 female workers from the weaving section revealed that workers with more than 10 years of noise exposure had the worst hearing threshold levels at 1,000 and 4,000 Hz. Similar findings were observed for workers greater than 35 years
more » ... ter than 35 years old. The 4,000 Hz notch, suggestive of exposure to intense noise, was noted in the audiograms of 26 subjects.
doi:10.2486/indhealth.36.61 pmid:9473860 fatcat:5cbdnn2ievcpncvt4gr5c7e6pa