Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Højbakkegaard Allé 30, 2630, Taastrup, Denmark,
Environ Sci Pollut Res Int. 2014;21(13):7838-46. doi: 10.1007/s11356-014-2695-0. Epub 2014 Mar 19.
Indoor plants can remove volatile organic compounds (VOCs) from the air. The majority of knowledge comes from laboratory studies where results cannot directly be transferred to real-life settings. The aim of this study was to develop an experimental test system to assess VOC removal by indoor plants which allows for an improved real-life simulation. Parameters such as relative humidity, air exchange rate and VOC concentration are controlled and can be varied to simulate different real-life settings. For example, toluene diffusion through a needle gave concentrations in the range of 0.10-2.35 μg/L with deviations from theoretical values of 3.2-10.5%. Overall, the system proved to be functional for the assessment of VOC removal by indoor plants with Hedera helix reaching a toluene removal rate of up to 66.5 μg/m(2)/h. The mode of toluene exposure (semi-dynamic or dynamic) had a significant influence on the removal rate obtained by H. helix.
室内植物可以去除空气中的挥发性有机化合物 (VOCs)。大多数知识来自于实验室研究，而这些研究结果并不能直接转化为实际生活环境。本研究的目的是开发一种实验测试系统，以评估室内植物去除 VOC 的能力，从而可以更真实地模拟实际生活环境。该系统可以控制相对湿度、空气交换率和 VOC 浓度等参数，并对其进行调节以模拟不同的实际生活环境。例如，通过针状物扩散甲苯，浓度范围在 0.10-2.35μg/L 之间，与理论值的偏差为 3.2-10.5%。总体而言，该系统可以有效地评估室内植物去除 VOC 的能力，其中常春藤的甲苯去除率高达 66.5μg/m(2)/h。甲苯暴露方式（半动态或动态）对常春藤获得的去除率有显著影响。
