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KMID : 0895420040140030233
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Journal of Korean Society of Occupational and Enviromental Hygiene
2004 Volume.14 No. 3 p.233 ~ p.242
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Study on Analysis for Working Environmental Measurement Results of Automobile Industries
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Oh Doe-Suk
Lee Yong-Hack
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Abstract
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The aims of this study are to confirm the improvement by comparison with the excess-rate for exposure level of the
harmful factors for working environmental measurement results of 1995~2003 year of automobile factories and to suggest direction for working environmental measurement in future. 1st, the harmful factor continuously issued at A(B ; same factory) and C factories during 1995~2003 year was the noise. The total excess-rate of harmful factors for overall processes was 19.4% during 1995~1997 year, 2000~2001 year 9.4% in A(B) factory and C factory was 1.96% during
2001~2003 year. The results of improvement for harmful factors are as follows. 1. Noise ; The total excess-rate for overall processes of A(B) factory was av. 24.9% during 1995~1997 and av. 19.7% during 2000~2001 and especially at 2001(13.6%) was very improved. The mainly improved process was the press-process. The excess-rate of C factory during
2001~2003 year was av. 6.1% for overall processes. 2. Manual material handling(MMH) and repeated works ; The RWL excess-rate for MMH of A(B) factory was very high during 1995~1997 but during 1999~2001(61.5% → 7.1%) was very improved. The ANSI excess-rate for repeated works during 1995~1997 was 77.2%. The MMH for C factory have been automated and not issued. 3. Dusts(welding fume, Fe2O3 dust, and etc.) and heavy metals ; During 1995~2003 the excess-rate for dusts and heavy metals was zero in A(B) and C factories. 4. Organic solvents ; During 1995~1997 the excess-rate for organic solvents of A factory was 5.3% and during 1999~2001(zero%) was very improved. During 1995~2001
benzenes(A2) have been detected but not exceed exposure level. The excess-rate for C factory was zero% and enzenes
were not detected. 5. The others(specific chemical materials, toxic gases, oil mists, asbestos, electromagnetic wave, vibration, heat, etc.) not exceed the exposure levels except the oil mist and the a few physical factors.2nd, Until now as the chemical factors have been very improved, the direction of working environmental measurement in future will manage the chemical factors as the basis and enforce the physical factors(noise, vibration, electromagnetic wave etc. and the ergonomic factors(MMH and repeated work related with the CTDs).
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KEYWORD
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Excess-ratio, manual material handling, MMH, cumulated trauma disorders, CTDs
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