Abstract
The purpose of this study was to examine the temperature of environments in which subjects stayed in summer,
as well as the relationship between the thermal environment and subjective heat-cold tolerance. Temperatures were
monitored using a portable thermometer. There was a significant difference between the average temperature of environments
in which subjects stayed (TSS: 28.5 ± 1.6 ℃ ) and the temperature recorded by the Japan Meteorological
Agency (T-JMA: 31.0 ± 1.7 ℃ ) (P < 0.05). The difference between the average daytime and nighttime temperatures
of TSS (0.8 ± 0.74 ℃ ) was significantly smaller than T-JMA (3.6 ± 0.69 ℃ ) (P < 0.001). Therefore, we concluded
that subjects in summer stayed in environments with temperatures lower than the T-JMA and lived in a narrowtemperature-
range environment. That suggested that the subjects lived in environments where room temperature
was controlled by air-conditioning.
