| Working environments at fishery ports and harbors during the winter in cold、 windy regions are very severe for workers. To examine the necessity of facilities for the improvement of working environments such as the wind and snow shelters、 we should quantitatively evaluate in terms of human sensation based on thermal indices、 which can indicate bodily sensation、 including thermal sensation、 thermal comfort、 pain and other factors、 at given thermal environments. In this study、 we conducted sensory experiments on subjects in cold room and in open-air under various conditions to examine the practical application of some thermal indices. We found that there were no differences between sexes and between cold room and open air regarding the relationship (regression line) between the values calculated by each thermal index and the responses given by the subjects. Of five thermal indices examined in this study the WCI (Wind Chill Index) seems to be the most useful index from a practical point of view、 as its method of calculation is very simple and few input data are required (only wind speed and atmospheric temperature). |
