几种室内观赏植物对甲醛净化效果的研究

Research on the Ability of Purifying Formaldehyde among Several Kinds of Indoor Ornamentals

[目的]推广对甲醛净化效果好的植物。[方法]通过调查选出4种室内观赏植物,将盆土与茎叶部分隔开,放入自行研制的密闭箱中,对植物进行试验。测得15 h和24 h后甲醛的吸收量。以单位叶面积甲醛减少量来比较植物间吸纳甲醛能力的大小并排序。[结果]花叶常春藤净化甲醛的能力较强,而袖珍椰子等净化甲醛的能力较弱。[结论]在室内甲醛污染程度比较低的情况下,选用植物净化,在美化居室的同时可以起到很好的净化效果。

[ Objective ] The research aimed to popularize the plants which have good effects in purifying the formaldehyde. [ Method ] Four kinds of indoor ornamentals were picked out by investigation. The plastics were used to cover pot and soil to separate them from the plants before they were put into the self-designed airproof boxes. After the given concentrated formaldehyde vented into the airproof boxes for 15 and 24 h, the changed quantities of formaldehyde and the area of plants＇leaves before and after experiments were measured, Thus the absorption ability of four plants was judged by comparing the decrease amount of formaldehyde per unit of leaf area （ mg/m2 ）. [ Result] The purificatory ability of Hedara nepalensis var. sinensis （ Tobl. ） Rehd. was much better than that of Chamaedorea elegans （ Mart. ） Liebm. ex Oerst.. [ Conclusion] The plants can not only ornament the house but also play good role in purifying indoor formaldehyde on the condition that the indoor air is not heavily polluted by formaldehyde.