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Assessment of volatile organic compound removal by indoor plants—a novel experimental setup

机译:评估室内植物去除挥发性有机化合物的新实验装置

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摘要

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.
机译:室内植物可以从空气中去除挥发性有机化合物(VOC)。大多数知识来自实验室研究,在实验室研究中,结果无法直接转移到现实生活中。这项研究的目的是开发一种实验测试系统,以评估室内植物对VOC的去除,从而改善现实生活中的模拟。诸如相对湿度,空气交换速率和VOC浓度之类的参数受到控制,可以更改以模拟不同的现实生活设置。例如,甲苯通过针头扩散得到的浓度在0.10-2.35μg/ L的范围内,与3.2-10.5%的理论值之间存在偏差。总体而言,该系统被证明可用于评估室内植物中具有常绿常春藤螺旋结构的甲苯去除率高达66.5μg/ m〜2 / h的VOC去除率。甲苯暴露的方式(半动态或动态)对螺旋藻的去除率有重大影响。

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