Odour and Flavour threshold values in air, water and other media
Since the 19th century, human odour and taste thresholds have been systematically measured. Among the earliest pioneers are Valentin, Passy, Zwaardemaker, Backman and Allison and Katz. Since then, sensory psychology expanded and many others performed threshold measurements.
In the 1970-ies, threshold compilations appeared in the literature. The compilations by Leo van Gemert (first published in 1977 by TNO) is still one of the most complete and updated lists of original threshold values. Until recently, BACIS (Mans Boelens) published the compilations of van Gemert.
In June 2006, Bacis ended its activities and Leo van Gemert joined forces with Oliemans Punter & Partners for the continuation. Both compilations are printed in a bound, paperback edition and the information, if there is sufficient interest, will also be made available electronically in 2007. In the books, almost 18.000 threshold values are listed with some 3,000 references.
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