Table 5 Exposure levels of cleaning or degreasing jobs using assessment of reliability of work environment monitoring in 2006 in Korea
From: The Relationship between the Occupational Exposure of Trichloroethylene and Kidney Cancer
Industry in manufacturer | Job1 | Job2 | Method | Range of concentration (ppm) |
|---|---|---|---|---|
Electronic components (LCD panel frame) | Press | Processing & cleaning | Solid sampler. NIOSH method 1022 | 8.258~11.995 |
Power electric equipment (painting transformers) | Storing component & cleaning | Printing & cleaning | Solid sampler. NIOSH method 1022 | Painting and cleaning: 0.343~9.742 masking: 1.099~16.432, touch up: 0.149~2.462 |
Measuring, optic and precision instrument | Press & cleaning | Grinding & cleaning | Solid sampler. diffusive sample | 16.99~114.41 (including manual work) |
Television and communication equipment | Press molding & processing | Assembly & cleaning | Solid sampler. NIOSH method 1022 | 85.44 in manual (closed 1 years ago), 2.16~3.75 in automatic |
Optic equipment and lens | Cutting | Cleaning | Solid sampler. NIOSH method 1022 | 52.90 (in indoor) |
Parts and accessories for motor vehicle | Assembly & dipping | Bonding & cleaning | Sorbent tube | 11.57~18.52 |
Electronic components | Press | Cleaning | Sorbent tube | 31.72~49.86 |
Textile | Degummed and twist thread | Decontamination | Sorbent tube | 0.14~1.38 |
Plating | 1st cleaning | 2nd cleaning | Sorbent tube | 1st cleaning: 28.59, 3.55 |
2nd cleaning: 39.28, 1.81 | ||||
Metal tooling | Press | Cleaning | Solid sampler. NIOSH method 1022 | 8.75~9.22 |
Parts and accessories for motor vehicle | Mixing & surface treatment | Degreasing | KOSHA CODE-A-1-2004 (Method No. 016) | 2.56 |
Other electric equipment | Wring & dipping | Assembly & impregnation | KOSHA CODE-A-1-2004 (Method No. 016) | 0.03~0.05 |
Rubber goods production | Preparation | Degreasing | KOSHA CODE-A-1-2004 (Method No. 016) | 15.49~88.84 |
Other metal product | Press and spot welding | Cleaning | KOSHA CODE-A-1-2004 (Method No. 016) | 7.21~11.7 |
Transport machineries and equipment | Press and spot welding | Cleaning | KOSHA CODE-A-1-2004 (Method No. 016) | 14.90~49.83 |
Non-metallic mineral product | Melting & extrusion | Press & cleaning | KOSHA CODE-A-1-2004 (Method No. 016) | 41.32~116.62 |