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Effect of Temperature on the Breakthrough of a Charcoal Tube During Vinyl Chloride Monomer Sampling

 Jaehoon Roh  ;  Yun Jung Park  ;  Chy Nyun Kim  ;  Nam Gu Lim  ;  Sang Hoe Lee  ;  Jae Suk Song  ;  Jong Uk Won  ;  Glenn Talaska 
 Clinical Endocrinology, Vol.61(3) : 405-409, 2000 
Journal Title
Issue Date
Air Pollutants, Occupational/analysis* ; Analysis of Variance ; Charcoal ; Chromatography, Gas ; Environmental Monitoring/methods* ; National Institute for Occupational Safety and Health (U.S.) ; Temperature* ; United States ; United States Occupational Safety and Health Administration ; Vinyl Chloride/analysis*
Carbon Molecular Sieve Tube ; Coconut Shell Charcoal Tube ; Niosh Method ; Osha Method ; Temperature ; Vinyl Chloride Monomer
This study evaluated the effects of temperature on breakthrough of two standard collection media at various concentrations during vinyl chloride monomer (VCM) sampling. The National Institute for Occupational Safety and Health (NIOSH) and Occupational Safety and Health Administration (OSHA) methods were evaluated. To determine whether breakthrough of VCM would occur at the extremes of exposure and temperature that might be encountered in some workplaces, air samples containing 4 ppm (10.24 mg/m3), 8 ppm (20.45 mg/m3), 16 ppm (40.98 mg/m3), and 32 ppm (81.80 mg/m3) of VCM were collected at temperatures of 4, 22, and 40 degrees C. Five liters of air was sampled at the rate of 0.05 L/min for 100 min using the activated charcoal tube recommended by NIOSH. A second tube was added to the sampling train to collect any VCM that might not have been absorbed in the first tube. To collect VCM air samples by the OSHA method, two carbon molecular sieve tubes were connected serially and 3 L of air was sampled at the rate of 0.05 L/min for 60 min. A gas chromatograph with a flame ionization detector and ultra 2 capillary column was used to analyze VCM. Significant breakthrough was found when sampling at higher temperatures with the NIOSH method. No breakthrough was found when samples were collected using the OSHA media at different temperatures and concentrations. Therefore, under hot ambient conditions (>22 degrees C), the possibility of breakthrough should be considered when sampling VCM by the NIOSH method.
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1. College of Medicine (의과대학) > Dept. of Occupational and Environmental Medicine (작업환경의학과) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
Yonsei Authors
Roh, Jae Hoon(노재훈)
Won, Jong Uk(원종욱) ORCID logo https://orcid.org/0000-0002-9200-3297
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