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Updated: Jun 1, 2026

Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures

Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures

Published on: October 29, 2016

Formaldehyde removal by potted plant-soil systems.

Zhongjun Xu¹, Li Wang, Haiping Hou

¹Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China. xuzj@mail.buct.edu.cn

Journal of Hazardous Materials

|June 7, 2011

Summary

Potted plants like spider plants can effectively remove indoor formaldehyde pollution over time. Microbial activity in the soil plays a key role in this formaldehyde absorption and metabolism.

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Last Updated: Jun 1, 2026

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Published on: October 29, 2016

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Area of Science:

Environmental Science
Indoor Air Quality
Plant Biology

Background:

Formaldehyde is a prevalent indoor air pollutant.
Reducing formaldehyde exposure is crucial for urban health.
Natural methods for formaldehyde removal are sought after.

Purpose of the Study:

To evaluate the formaldehyde removal efficiency of three common potted plants: spider plant (Chlorophytum comosum), aloe (Aloe vera), and golden pothos (Epipremnum aureum) in conjunction with their soils.
To compare the formaldehyde removal capacities among the selected plant-soil systems.
To investigate the factors influencing formaldehyde removal, such as plant metabolism and soil microbial activity.

Main Methods:

Utilized a dynamic chamber technique to assess formaldehyde removal.
Measured formaldehyde removal rates by potted plant-soil systems over extended periods.
Assessed formaldehyde dehydrogenase activity in plant leaves.
Investigated the role of plant metabolism and soil microorganisms.

Main Results:

All tested potted plant-soil systems demonstrated long-term formaldehyde removal capabilities.
The spider plant-soil system exhibited the highest formaldehyde removal capacity.
Formaldehyde removal rates were higher during the daytime, correlating with increased plant and microbial metabolism.
Formaldehyde dehydrogenase activity in leaves correlated with removal capacity, suggesting diffusion limitation over reaction limitation.

Conclusions:

Potted plant-soil systems are effective for long-term indoor formaldehyde removal.
Spider plant-soil systems show superior performance in reducing formaldehyde levels.
Daytime removal efficiency is enhanced due to higher metabolic activity in plants and soil microbes.
Optimizing soil surface exposure can further improve the formaldehyde removal capacity of these systems.