Abstract
Ten kinds of offensive odors were measured with an odor sensor and by a human sensory test simultaneously. Five kinds of odor were taken in the following facilities; kraft pulp factory, raw sewage treatment plant, stock raisings plant, rendering plant and FRP plant. Another 5 kinds of odors were typical offensive odors generated from living environment; tobacco smoke, kitchen refuse, toillet, grilled fish and sewage. As a result, significant correlations were found between the response values of the odor sensor and odor indexes for all samples. Sensitivity of the odor sensor used was not enough to detect some kinds of odorant at low concentration corresponding to odor index 10 which was the lowest odor standard. Odor index, however, could be predicted from response value of the odor sensor using regression equation between the odor indexes and the response values for each odorant if the concentration was enough to detect by the odor sensor.
