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首页> 外文期刊>International Journal of Preventive Medicine >Phytoremediation of Formaldehyde from Indoor Environment by Ornamental Plants: An Approach to Promote Occupants Health
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Phytoremediation of Formaldehyde from Indoor Environment by Ornamental Plants: An Approach to Promote Occupants Health

机译：观赏植物对室内环境中的甲醛进行植物修复：促进乘员健康的途径

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Background: Formaldehyde is a common hazardous indoor air pollutant which recently raised public concerns due to its well-known carcinogenic effects on human. The aim of this study was to investigate a potted plant-soil system ability in formaldehyde removal from a poor ventilated indoor air to promote dwellers health. Methods: For this purpose, we used one of the common interior plants from the fern species ( Nephrolepis obliterata ), inside a Plexiglas chamber under controlled environment. Entire plant removal efficiency and potted soil/roots contribution were determined by continuously introducing different formaldehyde vapor concentrations to the chamber (0.6–11 mg/m3) each over a 48-h period. Sampling was conducted from inlet and outlet of the chamber every morning and evening over the study period, and the average of each stage was reported. Results: The results showed that the N. obliterata plant efficiently removed formaldehyde from the polluted air by 90%–100%, depending on the inlet concentrations, in a long time exposure. The contribution of the soil and roots for formaldehyde elimination was 26%. Evaluation of the plant growing characteristics showed that the fumigation did not affect the chlorophyll content, carotenoid, and average height of the plant; however, a decrease in the plant water content was observed. Conclusions: According to the results of this study, phytoremediation of volatile organic compound-contaminated indoor air by the ornamental potted plants is an effective method which can be economically applicable in buildings. The fern species tested here had high potential to improve interior environments where formaldehyde emission is a health concern.
机译：背景：甲醛是一种常见的有害室内空气污染物，由于其众所周知的致癌作用，最近引起了公众的关注。这项研究的目的是研究盆栽植物-土壤系统从通风不良的室内空气中去除甲醛以促进居民健康的能力。方法：为此，我们在受控环境下的有机玻璃室内使用了一种来自蕨类植物的常见室内植物（Nephrolepis obliterata）。整个植物的去除效率和盆栽的土壤/根系的贡献是通过在48小时内连续将不同的甲醛蒸气浓度（0.6-11 mg / m3）连续引入到室内来确定的。在研究期间，每天早晨和晚上从反应室的入口和出口进行采样，并报告每个阶段的平均值。结果：结果表明，经长时间暴露后，闭塞猪笼草植物可以有效地从受污染的空气中去除甲醛90％–100％，具体取决于入口浓度。土壤和根部对消除甲醛的贡献为26％。对植物生长特性的评估表明，熏蒸不会影响植物的叶绿素含量，类胡萝卜素和平均高度。然而，观察到植物含水量减少。结论：根据这项研究的结果，观赏性盆栽植物对植物体内的挥发性有机化合物污染的植物进行植物修复是一种行之有效的方法，可在建筑中经济地应用。在此测试的蕨类植物具有改善甲醛释放量对健康造成影响的内部环境的巨大潜力。

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