自体污染物与环境温度对人体的耦合影响及其机理

人体舒适健康受到室内热（热环境）、污（污染物）因素的共同影响。自体污染物，即人体代谢产生的挥发性化学污染物，可导致人体生理和精神应力升高，对健康状态和认知表现造成不利影响，是室内通风必须消除的污染物。围绕自体污染物的现有研究均未考虑环境温度的影响，常将温度保持在热中性值。然而，空气温度作为最重要的热环境参数也会对人体舒适、健康和工作效率产生显著影响。由此产生了一个重要科学问题：自体污染物与环境温度对人体会有什么样的耦合影响？即温度的改变会强化还是弱化自体污染物的影响或者产生新的影响？现有的针对自体污染物或温度单一因素影响的研究无法给出答案。因此，本项目深入研究自体污染物与环境温度对人体生理反应、主观感觉、健康症状和认知表现的耦合影响，并对影响规律的形成机理进行探讨。这一项目的成功实施将为实现室内温度和通风率的合理匹配与耦合控制提供可靠理论依据，以满足现代化室内环境舒适、健康又节能的高要求。

Human comfort and health are jointly influenced by the thermal environment and pollutants. Human bioeffluents, the chemical volatile pollutants from human metabolism, could lead to the increase of the physical and mental stress and have negative effects on people’s health and cognitive performance. Therefore, the human bioeffluents must be removed by indoor ventilation. The previous and current studies on human bioeffluents only maintained the environmental temperature to the thermoneutral temperature, rather than consider the effects of environment temperature. However, as the most important parameter of thermal environment, the air temperature can have a significant impact on human comfort, health and productivity. So an important scientific question must be answered: what are the coupling effects of the human bioeffluents and environmental temperature on the human body? Will the change of temperature strengthen or weaken the effects of human bioeffluents or create new effects? The current researches couldn’t give the answers. To fill in the research gap, this project will study the coupled impacts of human bioeffluents and environment temperature on the human physiological responses, subjective feeling, health symptoms and cognitive performance. The formation mechanism of the influence will also be investigated. This project will provide the reliable theoretical basis for the reasonable matching and coupling control of room temperature and ventilation rates to satisfy the high requirements of the comfort, health and building energy efficiency.