DOI QR코드

DOI QR Code

조선소 도장작업 노동자 유기용제 노출과 일간 변이

Characteristics of Workers'Exposure Concentration and Daily Variations to Organic Solvents in Shipbuilding Painting Processes

  • 안진수 (한성대학교 기계시스템공학과) ;
  • 박두용 (한성대학교 기계시스템공학과) ;
  • 강태선 (세명대학교 보건안전공학과)
  • Ahn, Jinsoo (Department of Mechanical System Engineering, Hansung University) ;
  • Park, Dooyong (Department of Mechanical System Engineering, Hansung University) ;
  • Kang, Taesun (Department of Health and Safety Engineering, Semyung University)
  • 투고 : 2019.10.14
  • 심사 : 2019.12.19
  • 발행 : 2019.12.31

초록

Objectives: This study was conducted to identify the characterization of organics solvent exposure among painting workers in the shipbuilding painting process, especially for their daily variations(within worker variance). Methods: Charcoal passive dosimeters were worn throughout each work shift for 20 days for five painting workers from October 19 to November 26, 2015. A total of 100 samples were collected, analyzed and compared with statutory workplace environmental measurements. Results: The geometric mean(GM) and geometric standard deviation(GSD) of mixed organic solvent(six substances) exposure index(EI) for the 100 samples were 0.42 and 4.42 respectively. The median and range of GSD for within worker EI representing five workers' daily EI variation is 3.72 and 2.63 ~ 5.20, respectively, which is classified as a very large variation(GSD>3). We were able to divide the painting process into two similar exposure groups(SEGs), Touch-up and Spray. Spray painting workers were much more exposed to organic solvent than Touch-up painting workers(GM=0.71 vs. 0.19), but less variably (GSD=3.64 vs. 4.10). xylene is the substance to which the workers were most exposed(GM=16.19 ppm, GSD=4.36), and the exposure characteristics of six substances including xylene is similar to those of EI. Conclusions: The daily variation of organic solvent exposure in the shipbuilding painting process is so high that statutory Assessment of Reliability of Work Environment Monitoring needs to be conducted with statistically sufficient number of samples and evidence.

키워드

참고문헌

  1. Bullock WH, Ignacio JS. A strategy for assessing and managing occupational exposures. 3rd ed. Fairfax, VA: AIHA Press, American Industrial Hygiene Association; 2006
  2. CEN. Bs-en 689:2018 workplace exposure. Measurement of exposure by inhalation to chemical agents. Strategy for testing compliance with occupational exposure limit values. Brussels, Belgium: British Standards Institution; 2018
  3. Moon DH, Kim JH, Kim PJ, Park MH, Hwang YS et al. A study on exposure of organic solvents in manufacturing industry. Ann Occup Environ Med 2001;11(3):219-228
  4. Derby PP. Testing compliance with occupational exposure limits for airborne substances. BOHS & NVvA; 2011
  5. Hewett P, Logan P, Mulhausen J, Ramachandran G, Banerjee S. Rating exposure control using bayesian decision analysis. J Occup Environ Hyg 2006;3(10):568-581(https://doi.org/10.1080/15459620600914641)
  6. HSE. Methods for the Determination of Hazardous Substances (88 Volatile Organic Compound). 1997
  7. Joo IS, Kim JS, Huh KH, Kim JI, Lee KJ, et al. Cognitive impairment and peripheral neuropathy by mixed organic solvents in spray painters working in a shipbuilding industry. J Korean Neurol Assoc 2000;18(3):311-318
  8. Kim HJ, Park DY. Daily variations of worker's personal exposures to trichloroethylene in cleaning and degreasing process. Monthly Industrial Health 2016(3):44-55
  9. Kim SW, Jang J, Kim GB. Development and validation of exposure models for construction industry: Tier 2 model. J Korean Soc Occup Environ Hyg 2014;24(2):219-228(https://doi.org/10.15269/JKSOEH.2014.24.2.219)
  10. Kim Y, Lee N, Sakai T, Kim KS, Yang JS, et al. Evaluation of exposure to ethylene glycol monoethyl ether acetates and their possible haematological effects on shipyard painters. Ann Occup Environ Med 1999;56(6):378-382(http://dx.doi.org/10.1136/oem.56.6.378)
  11. KOSHA. Health and safety practice guide - shipbuilding and repair. Incheon: KOSHA; 2011.
  12. Kromhout H, Symanski E, Rappaport SM. A comprehensive evaluation of within-and betweenworker components of occupational exposure to chemical agents. Ann Occup Hyg 1993;37(3):253-270(https://doi.org/10.1093/annhyg/37.3.253)
  13. Lavoue J, Joseph L, Knott P, Davies H, Labreche F, et al. Expostats: A bayesian toolkit to aid the interpretation of occupational exposure measurements. Ann Work Expo Health 2019;63(3):267-279(https://doi.org/10.1093/annweh/wxy100)
  14. Mulhausen J, Damiano J. Exposure assessment: Establishing similar exposure groups. American industrial hygiene association (eds.), a strategy for assessing and managing occupational exposures, va: USA: AIHA Press; 1998
  15. NIOSH. Manual of Analytical Method (4th ed). US Government Printing Office. 1994
  16. Koh SB, Roh YM, Yim HW, Shin YC, Kim SK, et al. The similar exposure group and exposure variation in ship-building painters; focused on xylene exposure. Ann Occup Environ Med 2001;13(4):413-422 (https://doi.org/10.35371/kjoem.2001.13.4.413)
  17. Straif K, Baan R, Grosse Y, Secretan B, Ghissassi FE, et al. Carcinogenicity of shift-work, painting, and firefighting. The Lancet Oncology 2007;8(12):1065-1066 https://doi.org/10.1016/S1470-2045(07)70373-X