Foliar uptake and translocation of formaldehyde with Bracket plants (Chlorophytum comosum)

Journal of Hazardous Materials
Yuhong Su, Yongchao Liang

Abstract

The foliar uptake and transport of formaldehyde into Bracket plants from air via leaves and roots to external water was investigated in an air-plant-water system. The results indicated that formaldehyde could be quickly taken up by plant tissues, and that formaldehyde accumulated in leaves could be released rapidly back into air when the formaldehyde level in air was diminished. This rapid reversible translocation of formaldehyde between plant leaves and air resulted in high formaldehyde concentrations in leaf dews, depending upon exposure levels of formaldehyde in air. Meanwhile, formaldehyde could be transported from air to plant rhizosphere solution through downward transport. The concentration of formaldehyde in rhizosphere solutions increased with exposure time and the formaldehyde level in air. The efficiency of the leaf extracts to break down formaldehyde increased, probably because of an increase in oxidative potential of the leaf extracts. Taken together, the main mechanism of formaldehyde loss in air can be attributed to the accumulation by (or breakdown in) plant tissues; the removal rate of formaldehyde from air reached 135 μg h(-1) plant(-1) in the experimental condition.

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Citations

Jan 1, 2019·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Hanxiao LiangYuhong Su
Oct 17, 2019·International Journal of Phytoremediation·Suya ZhaoYuhong Su
Nov 21, 2019·Environmental Science and Pollution Research International·Jian LiMingming Lu
Dec 17, 2016·Environmental Science and Pollution Research International·Hao TanLi-Mei Chen
Jul 20, 2019·Journal of Environmental Health Science & Engineering·Suya ZhaoHanxiao Liang
Oct 18, 2020·Environmental Science and Pollution Research International·Xiaohong HeYuhong Su
Nov 28, 2020·The Science of the Total Environment·Carmen Fernández-LópezJose Julio Ortega-Calvo

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