高温高湿盐雾环境对人体生理及劳动安全影响的实验研究
Experimental study on human physiological responses and labor safety under salt spray exposure in high-temperature and high-humidity environments
摘要：
为了评估盐雾气溶胶在高温高湿环境下对人体生理及劳动安全的耦合影响,在温度36 ℃、相对湿度50%条件下设置0、(6.41±1.95)、(9.60±0.72)、(12.90±0.77) mg/m3 4挡盐雾浓度,对88名健康男性进行了实验,连续监测口腔温度、心率与脱水率,并计算了安全劳动时间(SLT)。结果显示:(6.41±1.95)、(9.60±0.72)、(12.90±0.77) mg/m3的盐雾暴露导致SLT分别缩短23%、27%和23%(p<0.05);基于上述生理指标构建的劳动安全指数(LSI)与经典生理应变指数(PSI)一致性良好;构建的逻辑回归预测模型对“SLT<60 min”高风险个体的曲线下面积(AUC)为0.788,整体准确率为71.6%。
Abstract：
To assess the combined human physiological responses and labor safety impacts of salt spray aerosol in a high-temperature and high-humidity environment, 88 healthy male participants are tested under conditions of a temperature of 36 ℃ and a relative humidity of 50%, with the salt spray concentrations of 0, (6.41±1.95), (9.60±0.72), and (12.90±0.77) mg/m3. Oral temperature, heart rate, and dehydration rate are continuously monitored, and the safe labor time (SLT) is calculated. The results show that the exposure to salt spray concentrations of (6.41±1.95), (9.60±0.72), and (12.90±0.77) mg/m3 results in reductions of SLT by 23%, 27%, and 23%, respectively (p<0.05). The labor safety index (LSI), developed based on the above physiological indicators, demonstrates good consistency with the classical physiological strain index (PSI). The logistic regression prediction model developed to predict high-risk individuals (SLT<60 min) achieves an area under curve (AUC) of 0.788 and an overall accuracy of 71.6%.
Keywords:salt spray exposure; high-temperature environment; high-humidity environment; heat stress; physiology; labor safety assessment