【摘要】 探究在高温高湿环境下盐雾暴露对重度体力劳动人群生理热应激的影响规律与机制，防范此类复合环境健康风险发生，为准确评估提供依据。在受控环境舱内通过调控盐雾浓度，观测了健康男性在重度体力劳动下口腔温度、心率及出汗率的变化，对各生理参数进行了方差分析。结果表明，盐雾暴露显著加剧了人体的热应激反应，口腔温度和心率随盐雾浓度增高而进一步显著升高(p<0.05),而出汗率总体受到抑制(p<0.05)。盐雾通过在皮肤表面形成盐膜来阻碍汗液蒸发，进而削弱机体蒸发散热效能，导致生理热负荷的累积。更多还原

【Abstract】 Investigating the impact patterns and mechanisms of salt spray exposure on physiological heat stress in individuals performing heavy physical labor under high-temperature and high-humidity conditions is critical for accurate health risk assessment and prevention in such composite environments.In a controlled environmental chamber, oral temperature, heart rate, and sweating rate were measured in healthy males during heavy physical labor across varying salt spray concentrations, with ANOVA performed on these parameters.Salt spray exposure significantly exacerbated heat stress responses: both oral temperature and heart rate exhibited concentration-dependent increases(p<0.05),while sweating rate was overall suppressed(p<0.05).The primary mechanism involves salt film formation on the skin surface, which impedes sweat evaporation and thereby compromises evaporative heat dissipation efficiency, leading to cumulative physiological heat load.更多还原