においの強度と濃度の間の相関に関する考察(第 3 報)

Abstract

In the preceding reports, we have discussed, first, the relation between the odor intensity of a gaseous odorant and its concentration, and then, from the point of view that the adsorption of odorants on the olfactory nerve ends causes the olfactory sense to be formed, we have derived, for a mixture of odorants, an equation linking the intensity to the concentration. The equation has been applied to the results of the field survey around a kraft mill. In the present paper, we slightly modified and amplified the way of formulation as presented in the preceding reports. The results so obtained are summarised as follows : (1) For the case that the adsorption sites provided by nerve ends are of the same adsorptivity, Eqs. (1) and (1') hold. (2) For the case that the sites vary according to the sorts of odorants, Eqs. (2) and (2') hold. (3) For the case that the odorants are closely akin so that there is almost nothing to choose among them, Eq. (3) holds. Utilizing the data both of field survey and of laboratory experiment, the equations were examined, and it was confirmed that the equations are in a reasonably good accord with these data.