李荧, 马亚萍, 金铭, 马悦, 谷翠英, 汪晟炜, 宋学友, 于德娥. 不同温度下植物对甲醛吸收程度的差异[J]. 环境与职业医学, 2018, 35(11): 1035-1039. DOI: 10.13213/j.cnki.jeom.2018.18369
引用本文: 李荧, 马亚萍, 金铭, 马悦, 谷翠英, 汪晟炜, 宋学友, 于德娥. 不同温度下植物对甲醛吸收程度的差异[J]. 环境与职业医学, 2018, 35(11): 1035-1039. DOI: 10.13213/j.cnki.jeom.2018.18369
LI Ying, MA Ya-ping, JIN Ming, MA Yue, GU Cui-ying, WANG Sheng-wei, SONG Xue-you, YU De-e. Absorption differences of formaldehyde at different temperatures by plants[J]. Journal of Environmental and Occupational Medicine, 2018, 35(11): 1035-1039. DOI: 10.13213/j.cnki.jeom.2018.18369
Citation: LI Ying, MA Ya-ping, JIN Ming, MA Yue, GU Cui-ying, WANG Sheng-wei, SONG Xue-you, YU De-e. Absorption differences of formaldehyde at different temperatures by plants[J]. Journal of Environmental and Occupational Medicine, 2018, 35(11): 1035-1039. DOI: 10.13213/j.cnki.jeom.2018.18369

不同温度下植物对甲醛吸收程度的差异

Absorption differences of formaldehyde at different temperatures by plants

  • 摘要: 目的 了解不同温度下,不同植物对甲醛的吸收作用,为筛选出适合海南温度变化下室内净化甲醛的植物提供依据。

    方法 选取5种常见的室内观赏植物,在20℃以下、20~25℃和25℃以上三个温度条件下,用静式染毒柜密闭熏气法检测不同植物对甲醛的吸收作用。

    结果 (1)相同温度下不同植物间的比较:与空白组相比,20℃以下、20~25℃和25℃以上各植物对甲醛的吸收作用差异均具有统计学意义(P < 0.05)。薄荷组的12 h内空气中甲醛减少量分别是4.34、3.71、5.57 mg/m3,吊兰组的12 h内空气中甲醛减少量分别是3.59、3.74、5.54 mg/m3,绿萝组的12 h内空气中甲醛减少量分别是3.87、3.81、5.39 mg/m3,富贵竹组的12 h内空气中甲醛减少量分别是3.56、3.54、5.31 mg/m3,20~25℃和25℃以上时九里香组的12 h内空气中甲醛减少量分别是3.81、5.23 mg/m3。在20℃以下时,不同植物的甲醛净化效果依次为:薄荷>绿萝>吊兰>富贵竹;在20~25℃时,不同植物对甲醛的吸收作用依次为:九里香=绿萝>吊兰>薄荷>富贵竹;在25℃以上时,不同植物对甲醛的吸收作用依次为:薄荷>吊兰>绿萝>富贵竹>九里香。(2)同一植物不同温度间的比较:除富贵竹外,其余四种植物在不同温度下对甲醛的吸收效果均有差异(P < 0.05),均在25℃以上时对甲醛的吸收效果最优。(3)同一植物不同时间段的比较:九里香、富贵竹、绿萝、吊兰和薄荷对甲醛均具有一定的吸收作用,且随着时间的增加,植物对甲醛的吸收作用逐渐减弱。

    结论 不同植物对甲醛的吸收能力有差异,且外界温度的改变会影响植物对甲醛的吸收能力,绿萝和吊兰在20℃以下、20~25℃、25℃以上时对甲醛的吸收效果均较好,薄荷在20℃以下和25℃以上时的甲醛吸收效果较好,而富贵竹在这3个温度范围内对甲醛吸收效果无明显差异。

     

    Abstract: Objective To understand the absorption of formaldehyde by different plants at different temperatures, and provide a basis for the selection of plants suitable for indoor purification of formaldehyde in Hainan.

    Methods Five common indoor ornamental plants were selected in this study. At the temperatures of below 20℃, 20-25℃, and above 25℃, the absorption effects of formaldehyde by different plants were detected in sealed cabinets.

    Results (1) Comparisons among different plants at the same temperature:compared with the blank group, at the temperatures of below 20℃, 20-25℃, and above 25℃, the plant absorption effects of formaldehyde were statistically different (P < 0.05). The reductions of formaldehyde in the air within 12 h at the three temperature categories by mint were 4.34, 3.71, and 5.57 mg/m3, respectively; the reductions by Chlorophytum comosum were 3.59, 3.74, and 5.54 mg/m3, respectively; the reductions by Epipremnum aureum were 3.87, 3.81, and 5.39 mg/m3, respectively; the reductions by Dracaena sanderiana were 3.56, 3.54, and 5.31 mg/m3, respectively; the reductions by Murraya exotica were 3.81 and 5.23 mg/m3 at 20-25℃ and above 25℃, respectively. Below 20℃, the formaldehyde purification effects from high to low were mint > Eipremnum aureum > Chlorophytum comosum > Dracaena sanderiana; at 20-25℃, the effects were Murraya exotica=Epipremnum aureum > Chlorophytum comosum > mint > Dracaena sanderiana; above 25℃, the effects were mint > Chlorophytum comosum > Epipremnum aureum > Dracaena sanderiana > Murraya exotica. (2) Comparisons of the same plant at different temperatures:except Dracaena sanderiana, the rest four plants absorbed different levels of formaldehyde at different temperatures (P < 0.05), and the absorption was optimal above 25℃. (3) Comparisons of the same plant at different time:all plants showed certain absorption of formaldehyde, and the effects faded over time.

    Conclusion The selected plants show varied absorption abilities of formaldehyde, and temperature alters their absorption abilities. High absorption levels by Epipremnum aureum and Chlorophytum comosum are obsesrved at all temperatures, the absorption by mint is better at below 20℃ and above 25℃, but the absorption by Dracaena sanderiana is not obviously different among the three studied temperature ranges.

     

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