Assessment of Heat Stress in Iranian Industries and Temporal Trends over the Last Two Decades: A Systematic Review and Meta-Analysis
This systematic review and meta-analysis of 43 studies reveals that occupational heat stress in Iran is substantial, with pooled mean Wet Bulb Globe Temperature (WBGT) levels significantly higher in roofed environments and showing a concerning upward trend over the past two decades in open-air settings, particularly affecting workers in the steel and date-harvesting industries.