Abstract
We have developed a portable gas chromatograph with an adsorption/combustion type micro gas sensor for the simple and on-site measurements of volatile organic compounds in indoor air. The detection characteristics of the device were examined for toluene, o-xylene, styrene and butyl acetate at the concentration levels of the indoor guideline values set by the Ministry of Health, Labour and Welfare, Japan, or above. Finally, field tests were conducted in a furniture factory and a ceramic art studio. As a comparison to evaluate the measurement results of the device, active samplings were simultaneously conducted and the concentrations calculated from GC/MS measurements as the conventional method. As a result, toluene was mainly detected and the measurement values by the device were in good agreement with that by the conventional one in the concentration range of 0.02ppm to 2ppm..
