[ Objective] The research aimed to screen out the best ornamental houseplants to remove formaldehyde from indoor air through deposition velocity and to explore the pathways of plants for formaldehyde removal. [ Method...[ Objective] The research aimed to screen out the best ornamental houseplants to remove formaldehyde from indoor air through deposition velocity and to explore the pathways of plants for formaldehyde removal. [ Method] Fifty-three indoor ornamental plant species were experimen- ted in series of sealed chambers （volumes of O. 096 m^3 ） by formaldehyde fumigation with the internal concentration of （1 ± 0. 1 ） mg/L in this study. The removal efficiency of formaldehyde was assessed by the uptake fluxes and the deposition velocity of formaldehyde. [ Result] Six species of indoor plants （ Hedera helix, Ficus elastica Roxb. ex Hornem, Nephrolepis exaltata cv. Bostoniensis, Begonia evansiana, Mentha canadensis L. and Adiantum capillus-veneris Linn. ） with high formaldehyde removal efficiency were firstly screened out. Significance analysis of the deposition velocity by Statistical Program for Social Sciences （SPSS） presented that tested plants belonging to the same genera or family had similar ability to remove formaldehyde pollution. The diurnal variations of deposition velocity for the six plants were then tested further. The results showed that four of them, including Ficus elastica Roxb. ex Hornem, Nephrolepis exaltata cv. Bostoniensis, Mentha canadensis L. and Adiantum capi//us-veneris Linn. re- moved formaldehyde mainly by leaves surface adsorption, while Begonia evansiana and Hedera helix by stomatal uptake, f Conclusion Begonia evansiana and Hedera helixare the most efficient indoor plants among the 53 species studied for phytoremediation of the air formaldehyde pollution.展开更多
As gradual improvement of living environment and indoor decoration form diversification, the indoor air pollution has become the ＂invisi- ble killer＂ harming human health, and has been listed as one of ten big threa...As gradual improvement of living environment and indoor decoration form diversification, the indoor air pollution has become the ＂invisi- ble killer＂ harming human health, and has been listed as one of ten big threats to human health by the World Health Organization, which also be- came one of hot issues concerned by countries all over the world. In this paper, through the determination of formaldehyde in some houses of Binzhou, the release of formaldehyde with the increase of time was explored; change of formaldehyde in the same residence in different functional areas was analyzed; the influence of the temperature, humidity and plant to formaldehyde content was also analyzed.展开更多
基金Supported by Foundation for the Cooperation of Industry,Education and Academy of Guangdong Science and Technology Department of China( 2011B090400255)
文摘[ Objective] The research aimed to screen out the best ornamental houseplants to remove formaldehyde from indoor air through deposition velocity and to explore the pathways of plants for formaldehyde removal. [ Method] Fifty-three indoor ornamental plant species were experimen- ted in series of sealed chambers （volumes of O. 096 m^3 ） by formaldehyde fumigation with the internal concentration of （1 ± 0. 1 ） mg/L in this study. The removal efficiency of formaldehyde was assessed by the uptake fluxes and the deposition velocity of formaldehyde. [ Result] Six species of indoor plants （ Hedera helix, Ficus elastica Roxb. ex Hornem, Nephrolepis exaltata cv. Bostoniensis, Begonia evansiana, Mentha canadensis L. and Adiantum capillus-veneris Linn. ） with high formaldehyde removal efficiency were firstly screened out. Significance analysis of the deposition velocity by Statistical Program for Social Sciences （SPSS） presented that tested plants belonging to the same genera or family had similar ability to remove formaldehyde pollution. The diurnal variations of deposition velocity for the six plants were then tested further. The results showed that four of them, including Ficus elastica Roxb. ex Hornem, Nephrolepis exaltata cv. Bostoniensis, Mentha canadensis L. and Adiantum capi//us-veneris Linn. re- moved formaldehyde mainly by leaves surface adsorption, while Begonia evansiana and Hedera helix by stomatal uptake, f Conclusion Begonia evansiana and Hedera helixare the most efficient indoor plants among the 53 species studied for phytoremediation of the air formaldehyde pollution.
文摘As gradual improvement of living environment and indoor decoration form diversification, the indoor air pollution has become the ＂invisi- ble killer＂ harming human health, and has been listed as one of ten big threats to human health by the World Health Organization, which also be- came one of hot issues concerned by countries all over the world. In this paper, through the determination of formaldehyde in some houses of Binzhou, the release of formaldehyde with the increase of time was explored; change of formaldehyde in the same residence in different functional areas was analyzed; the influence of the temperature, humidity and plant to formaldehyde content was also analyzed.
