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ISSN : 2288-9167(Print)
ISSN : 2288-923X(Online)
Journal of Odor and Indoor Environment Vol.14 No.4 pp.315-322

A study on the adequacy of the regulation standards and the correlation between odor intensity and the concentration of fatty acids, i-butyl alcohol

Jin-Seok Han1*,Sun-Tae Kim2
1Department of Environmental and Energy Engineering, University of Any
2Department of Environmental Engineering, University of Daejeon
*Corresponding author Tel : +82-31-463-1292 E-mail :


This study aims to evaluate the relationship between concentration and odor intensity using the odor sensory method for 4 types of fatty acid compounds and i-butyl alcohol. For the measurement, 18 panelists were selected based on several criteria through a panel test. Panelists chosen for their closely similar sensitivities provided more reproducible values. The estimation showed that the correlation of the concentration with odor intensity for the 5 compounds, including the fatty acid compounds and i-butyl alcohol can be reasonably expressed by the Weber-Fechner equation. Notably the standards regulation fatty acid concentrations are very strict, and the butyl acetate standards are very loose. It is suggested than the results of this study can be used as basic data for research on measures to improve the regulation standards on complex odor concentrations on site boundaries in operation, as well as the correlation between concentration and odor intensity for the designated foul odor substances, and their characteristics.