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/m^3,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/m^3,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/m^3,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/m^3,20~25℃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/m^3。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。
[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 12h at the three temperature categories by mint were 4.34,3.71,and 5.57mg/m^3,respectively;the reductions by Chlorophytum comosurn were 3.59,3.74,and 5.54mg/m^3,respectively;the reductions by Epipremnum aureum were 3.87,3.81,and 5.39mg/m^3,respectively;the reductions by Dracaena sanderiana were 3.56,3.54,and 5.31mg/m^3,respectively;the reductions by Murraya exotica were 3.81 and 5.23mg/m^3 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
作者
李荧
马亚萍
金铭
马悦
谷翠英
汪晟炜
宋学友
于德娥
LI Ying;MA Ya-ping;JIN Ming;MA Yue;GU Cui-ying;WANG Sheng-wei;SONG Xue-you;YU De-e(School of Public Health,Hainan Medical College,Haikou,Hainan 571199,China)
出处
《环境与职业医学》
CAS
CSCD
北大核心
2018年第11期1035-1039,共5页
Journal of Environmental and Occupational Medicine
基金
海南医学院大学生创新创业训练计划项目(编号:HYCX2015006)
国家级大学生创新创业训练计划项目(编号:201611810058)
关键词
观赏植物
甲醛
吸收作用
温度
ornamental plant
formaldehyde
absorption
temperature
