水槽(地理)
环境化学
挥发性有机化合物
吸入
气体分析呼吸
环境科学
呼吸系统
人类健康
甲苯
化学
环境卫生
色谱法
医学
麻醉
有机化学
内科学
地理
地图学
作者
Junzhou He,Xiao Sun,Xudong Yang
出处
期刊:Indoor Air
[Wiley]
日期:2019-09-20
卷期号:29 (6): 968-978
被引量:24
摘要
Human exposure to volatile organic compounds (VOCs) via inhalation might increase the risk of specific diseases. Human breath has been widely investigated as a source of VOCs. However, the role of the human respiratory system as a sink for VOCs is much less studied. In this observational study, the VOC concentrations in inhaled and exhaled air in different environmental conditions were investigated. A total of 98 healthy non-smoking subjects who were exposed to a wide variation in levels of VOCs participated in this study. Individual and statistical results show that human breath could serve as a source for some VOCs and a sink for others, and even when human breath serves as a sink, not all VOCs were 100% absorbed. Interestingly, an increase in inhaled concentrations of toluene was observed to convert human breath from being a source to being a sink. Attention could be given to those VOCs for which humans act as a strong sink.
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