户外工作者的生理应变:高湿度的隐藏危险
Tanya Isaac1, S Ranjith1, P K Latha1
1Department of Environmental Health Engineering, Sri Ramachandra Institute of Higher Education and Research, No: 1, Ramachandra Nagar, Porur, Chennai, Tamil Nadu, 600116, India.
Environmental research
|March 30, 2025
概括
高湿度显著增加户外工作者的生理应力 (PSI). 这项研究确定了一个热湿度值,以改善工作场所安全指南在炎热潮湿的气候.
科学领域:
- 环境健康 环境健康
- 职业安全 在职业安全.
- 身体生理学 身体生理学
背景情况:
- 在炎热的气候下,户外工作者会经历大量的热应变,受温度和相对湿度 (RH) 的影响.
- 虽然已知温度的影响,但RH在生理应变中的作用需要进一步调查.
- 了解RH的影响对于提高在炎热潮湿的工作环境中的安全至关重要.
研究的目的:
- 研究相对湿度 (RH) 对户外工作者的生理应变指数 (PSI) 的影响.
- 确定一个热湿度值,以改善热应激管理.
- 为热和潮湿环境提供工作场所安全指导方针.
主要方法:
- 一项涉及印度1452名户外工作者 (2014-2022) 的横截面研究.
- 收集的数据是空气温度,RH,湿球球体温度 (WBGT) 和生理热应变指标.
- 使用通用线性混合模型 (GLMM) 和通用添加模型 (GAM) 的统计分析来评估RH对PSI的影响.
主要成果:
- 高湿度暴露与经历高PSI的可能性增加了2.5倍.
- 在对共变量进行调整后,GLMM证实RH显著影响PSI (aOR=1.6).
- GAM分析揭示了非线性关系,并确定了32°C和60%RH的热湿度值.
结论:
- 在高湿度下增加的PSI强调了需要采取特定的保护措施,如补水和调整工作休息周期.
- 相对湿度显著加剧户外工作者的生理压力.
- 研究结果支持在高湿度条件下采取更积极的热应激管理策略,以提高职业安全.
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