Temporal Differences of Urban-Rural Human Biometeorological Factors for Planning and Tourism in Szeged, Hungary

Table 1

Threshold values of Physiologically Equivalent Temperature (PET) for thermal sensation and the physiological stress level of human beings [18].

PET (°C)	Thermal sensation	Physiological stress level
	Very cold	Extreme cold stress
4
	Cold	Strong cold stress
8
	Cool	Moderate cold stress
13
	Slightly cool	Slight cold stress
18
	Comfortable	No thermal stress
23
	Slightly warm	Slight heat stress
29
	Warm	Moderate heat stress
35
	Hot	Strong heat stress
41
	Very hot	Extreme heat stress