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Inherent Relationship Among Odor Concentration, Intensity, and Persistence

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  034103,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.13878) @2003
Authors:   Guoliang Qu, John J.R. Feddes
Keywords:   odor, intensity, concentration, persistence, correlation, model

By defining the intensity of a lower and an upper threshold concentration, a model was developed to correlate odor intensity with odor concentration measurements. The odor intensity measurement in the model consisted of determining a samples odor concentration, making serial subsamples of the sample with different odor concentrations, and ranking the subsamples in order of odor intensity. Odorous samples emitted from the same source should have the same lower and upper intensity threshold concentration, which can be stored as standardized data. To acquire a samples odor intensity, only the odor concentration measurement is required. An experiment was conducted to verify this model in a laboratory trial scale.

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