We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Türkiye Taşkömürü Kurumu ocaklarında gürültü etkilenim düzeylerinin istatistiksel analizi.
- Authors
FıŞne, Abdullah; Ökten, Gündüz
- Abstract
Development of modern mechanized operations in mining industry has been considerably decreasing the physical burden of work. But the most undesired and unavoidable by-product of these operations is the generation of high levels of noise. Occupational noise exposure of mine workers is a potentially serious health problem. High-level of noise not only hinders communication between workers, but, depending upon the level, quality, and exposure duration of the noise, it may also result in different type of physical, physiological and psychological effects on the workers, especially Noise Induced Hearing Loss (NIHL). Occupational exposure limits specify the maximum sound pressure levels and exposure times to which nearly all workers may be repeatedly exposed without adverse effect on their ability to hear and understand normal speech. The European Union has reached agreement on new directives dealing with noise in the working environment - Noise at Work Directive 2003/10/EC. The Member States and candidate countries like Turkey are to comply with this Directive before 15 February 2006. The limit and action values are given in this directive. The specific objectives of this study were to estimate occupational noise exposure levels of mine workers employed in Turkish Hard Coal Enterprise and compare them with the exposure limit values. The method of Homogeneous Exposure Groups (HEG) was used for the estimation of occupational noise exposure levels of mine workers. The noise survey consisted of measuring and noting two variables: the noise levels to which the worker was exposed and his exposure time to those levels per work shift. After completion the survey, the daily noise exposure levels of groups were calculated. The homogeneity of the groups was tested statistically using one way analysis of variance. The normality of noise levels obtained for HEG's was investigated using Skewness and Kurtosis Coefficient of distributions and One Sample Kolmogorov – Simirnov Test were used to determine the normality of the data. In this study, the zonal method was selected as measuring technique due to the most cost-effective method. Noise measurements were carried out using a Type 1 integrated sound level meter (model NL-31) manufactured by RION Co. Ltd., Japan. The equipment was operated on the A-weighted network, slow response and was acoustically calibrated before, during, and after each shift. Calibration was done using the RION NC-74 sound level calibrator which emits a 94 dB, 1 kHz tone. It is necessary to define an average noise level characterizing the mean exposure of the person to check compliance of noise exposure with regulations or to estimate the individual risk of hearing loss of an exposed person. Two parameters are defined by the ISO 1999 (1990) standard. These are daily and weekly noise exposure levels. The daily noise exposure level (LEX,8h = LAeq,8h = LEP,d) is time weighted average of the noise exposure levels, in dBA, for a nominal eight-hour working day. …
- Subjects
TURKEY; HEALTH of coal miners; PHYSIOLOGICAL effects of noise; NOISE &; psychology; OCCUPATIONAL hazards; COAL industry; MINERAL industries; INDUSTRIAL noise; STATISTICS
- Publication
ITU Journal Series D: Engineering, 2010, Vol 9, Issue 3, p87
- ISSN
1303-703X
- Publication type
Article