Regional variation in the role of humidity on city-level heat-related mortality.

ABSTRACT: The rising humid heat is regarded as a severe threat to human survivability, but the proper integration of humid heat into heat-health alerts is still being explored. Using state-of-the-art epidemiological and climatological datasets, we examined the association between multiple heat stress indicators (HSIs) and daily human mortality in 739 cities worldwide. Notable differences were observed in the long-term trends and timing of heat events detected by HSIs. Air temperature (T_air) predicts heat-related mortality well in cities with a robust negative T_air-relative humidity correlation (C_T-RH). However, in cities with near-zero or weak positive C_T-RH, HSIs considering humidity provide enhanced predictive power compared to T_air. Furthermo

SUBMITTER: Guo Q 

PROVIDER: S-EPMC11305137 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature