The results of work environment measurement in 22,384 industries in 2001 show that the noise level in 5,785 industries (12,159 operations) exceed Korda Occupational Exposure Limit (KOEL) of 90 dBA. The objective of this study was to prepare the fundamental data for improvement of working environment, and to understand their noise level. industry size and location, and number of process exceeding KOEL. Data of 12,159 operations in 5,785 industries were gathered from the work environment monitoring reports by 46 regional labor offices.
The results of this study were as follows;
1. Textiles manufacturing industry were found to be most vulnerable against noise with 20.3%(1,176 industries) of them exceeding noise KOEL followed by fabricated metal products manufacturing industry (8.5%, 490).
2. The percentage of measurements exceeding noise level of 100 dBA and above was found to be 7.4&(1.098 measurements) out of 14,746 measurements in total. Textiles manufacturing industry (57.3%, 629), other non-metallic mineral products manufacturing industry(14.0%, 88),and fabricated metal product manufacturing indusry(11.6%, 73) were also found to be at the top of the list.
3. The industry employing 5 to 29 workers had the highest workers gad the lowest percentage of exceeding noise KOEL with 7.5%(433).
4.Regarding the location of industry exceeding noise KOEL Gyong-sang probince was at the top with 52.3%(3,024 industries) due to many textiles manufacturing, fabricated metal products manufacturing, and motor vehicles, sithin its province. It was followed by Gyong- in provice(28.6& 1,656), choong-chung province(9.35, 540), Jeon-la province(7.2%, 417) Seoul(2.0% 115), and Gang- Won province(0.6%, 330.
The most severe noise exposures were found in textiles manufacturing and fabricated metal products manufacturing industrids. especially in Gyong-sang probince. The results also show that the small-sized industries employing less than 50 workers was the most vulnerable against noise exposures and textiles manufacturing and fabricated metal products manufacturing industries had the highest number of exposure operations exceeding noise KOEL.
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