两种常见植物净化室内空气的效果

为探讨家居植物对甲醛的吸收能力和对改善室内空气质量的效果，将库拉索芦荟（Aloevera）和虎尾兰（Sansevieria trifasciata）两种植物放置于相对封闭的环境中，进行16d的甲醛暴露实验。结果表明，虎尾兰的甲醛耐受性高于库拉索芦荟，在整个实验过程中都保持良好的生长状态，具有持续的甲醛去除能力（去除率达...

Evaluation of Two House Plants for Indoor Air Purification

Common indoor plants Aloe vera and Sansevieria trifasciata were selected for a 16-day formaldehyde exposure in a relatively confined environment, to investigate their formaldehyde absorption capabilities and air purification efficiencics. S. trifasciata was found having a higher formaldehyde tolerance than A. vera. It maintained health in the whole exposure with continuously high formaldehyde removal rate （up to 92.6% ）. Relatively, A. vera had lower tolerance to formaldehyde. Although it showed higher formaldehyde removal rate （94.6%） than S. trifasciata on the first 4 days, it began to wilt on day 8 and released the adsorbed formaldehyde afterwards. However, the two plants released a great deal amount of volatile organic compounds （VOCs） while they absorbed formaldehyde. Since VOCs are also air pollutants, a more comprehensive consideration is needed when evaluating the efficiency of indoor plants for air purification, i.e. not only to pay attention to the removal rate of target pollutants, but also to investigate the formation of secondary pollutants.