先进的呼吸学揭示了人类对外挥发性有机化合物的吸收
Yuerun Huang1, Zhengnan Cen2,3, Wenshan Wang1
1Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, P. R. China.
Environmental science & technology
|August 25, 2025
概括
这项研究引入了吸入保留指数 (IRI),以量化人类吸收环境挥发性有机化合物 (VOC). IRI揭示了环境污染物如何被人体吸收,影响公共健康.
科学领域:
- 环境健康
- 毒理学
- 人类生理学
背景情况:
- 人类呼出的挥发性有机化合物 (VOC) 概况受到环境暴露的影响,但吸入保留和呼出动态尚不清楚.
- 量化环境VOC的吸收对于评估人类对环境污染物的暴露至关重要.
研究的目的:
- 引入和验证吸入保留指数 (IRI) 用于量化人类对环境VOC的吸收.
- 研究控制VOC吸入和呼出动态的生理过程.
- 提供关于人体吸收环境空气污染物的定量见解.
主要方法:
- 使用GC × GC-TOF MS/FID对103个人的呼气和环境空气样本进行分析.
- 确定107种常见的挥发性有机物,并应用气泡梯度 (AG) 方法.
- 计算IRI值和使用蒙特卡洛模拟和基于生理学的药理学 (PBPK) 建模.
主要成果:
- 已识别出具有外源优势的VOC,主要是,芳和化物,其体内吸收比例在27.05%至70.53%.
- 证明VOC分子量,职业和环境水平显著影响IRI (p < 0.001).
- 特定物质的IRI和影响因素之间确定的线性或对数关系.
结论:
- 拟议的IRI方法为评估环境污染物的吸收和系统性持久性提供了一个新的框架.
- IRI提供了关于人体不完全吸收环境空气污染物的有价值的定量见解.
- 这种方法有助于更好地了解VOC暴露的动态,并为公共卫生和安全策略提供信息.
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