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KMID : 0895419910010020192
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Journal of Korean Society of Occupational and Enviromental Hygiene
1991 Volume.1 No. 2 p.192 ~ p.199
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Biological Exposure Indices of Organic Solvents for Korean Workers
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Abstract
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Biological exposure indices (BEI) of toluene, perchloroethylene (PCE) and methyl ethyl ketone (MEK) for Korean workers were studied respectively. Environmental exposures in workplace to organic solvent were measured by personal sampling. Blood toluene, blood perchloroethylene, urinary trichloroacetic acid and urinary MEK were determined by headspace gas chromatography. Urinary hippuric acid were determined by HPLC and corrected by creatinine. BEIs for Korean workers were calculated as the levels of determinants which are correspond to permissible exposure limits in Korea.
Blood toluene level of 2.2㎎/ℓ and urinary hippuric acid level of 1.7g/g creatinine are correspond to an exposure of 100 ppm toluene.
Blood PCE concentration of 1.6㎎/ℓ and urinary trichioroacetic acid concentration of 2.9㎎/ℓ are correspond to an exposure of 50pprn PCE. Urinary MEK concentration of 1.0㎎/ℓ is correspond to an exposure of 200ppm of MEK. BEIs for Korean workers determined in this study are very different to ACGIH´s BEI as urinary determinants are much lower and blood determinants are much higher than ACGIH´s BEI.
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KEYWORD
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