WBGT thresholds for thermal perception Table from Zare et al. (2019) | Thermal perception | WBGT | |----------------------|----------:| | no thermal stress | below 18°C| | moderate heat stress | 18°C-23°C | | strong heat stress | 23°C-28°C | | extreme heat stress | 28°C-30°C | | extreme danger | above 30°C |

Vertical structure of following slides

Daily Mean Wet Bulb Globe Temperature - Absolute Daily Minimum Wet Bulb Globe Temperature - Absolute Daily Maximum Wet Bulb Globe Temperature - Absolute Hours/Day without Heat Stress - Absolute Hours/Day with Moderate Heat Stress - Absolute Hours/Day with Strong Heat Stress - Absolute Hours/Day with Extreme Heat Stress - Absolute Hours/Day with Extreme Dangerous Heat Stress - Absolute