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KMID : 0895420050150030261
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Journal of Korean Society of Occupational and Enviromental Hygiene
2005 Volume.15 No. 3 p.261 ~ p.269
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Comparison between the Charcoal Tube Sampling Method and the Diffusive Sampler, and the Applicability of Diffusive Sampler in the Field
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Jang Sung-Ho
Kim Hyoung-Ah
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Abstract
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To Investigate the field applicability of a diffusive sampler (3M OVM #3500, passive sampling method) authors conducted
a simultaneous measurement of personal organic solvents exposure in the air of the workplaces by charcoal tube with low
volume sampler (aclive sampling method) and diffusive sampler. Samples were collected and analyzed by NIOSH method
(NMAMh~ mw e i g h t w orkers in 12 factories who work in 6 different processes. Geometric mean (GM) and geometric
standard deviation (GSD) were used to describe the result. To compare the results of the two methods, paired t-test was used. According to the manual of the exposure assessment of the mixed organic solvents (h4mstry of Labor, Korea), Em was calculated. Simple linear regression was used to evaluate the relationship between the two methods. Results were as follows; 1. Eight different solvents (ethyl acetate, n-hexane, toluene, xylene, acetone, isopropyl alcohol, methyl ethyl ketone (MEK), and methyl isobutyl ketone) were detected simultaneously in the two methods and the concentrations of the personal exposure were lower than 0.5 TLV level. The concentration of the charcoal tube method was higher than that of a dihive sampler in n-hexane and MEK (~4.05). 2. Em of the charcoal tube method was higher than that of diffusive sampler method but not sigmficantly different and was lower than the OEL (Occupational Exposure Limit) in all 6 pIccesses. 3. There was a significant correlation between the two methods in low concentrations of the 8 organic solvents (fl.05).
In conclusion, there was no difference in charcoal tube method and W i v e sampler method in low concentrations of some organic solvents, diffusive sampler can be applied to assess the personal monitoring in low level exposure.
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KEYWORD
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charcoal tube, diffusive sampler, organic solvents, exposure assessment
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