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Atmosphere 2016, 7(11), 144; doi:10.3390/atmos7110144

Removal of Low-Molecular Weight Aldehydes by Selected Houseplants under Different Light Intensities and CO2 Concentrations

1
Key Laboratory of Jiangxi Province for Persistant Pollutants Control and Resources Recycle, School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
2
Department of Biomedical, Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA
3
School of Basic Science Departments, East China Jiaotong University, Nanchang 330013, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Robert W. Talbot
Received: 11 October 2016 / Revised: 5 November 2016 / Accepted: 9 November 2016 / Published: 11 November 2016
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Abstract

The removal of five low-molecular weight aldehydes by two houseplants (Schefflera octophylla (Lour.) Harms and Chamaedorea elegans) were investigated in a laboratory simulation environment with short-term exposure to different low light intensities and CO2 concentrations. Under normal circumstances, the C1–C5 aldehyde removal rates of Schefflera octophylla (Lour.) Harms and Chamaedorea elegans (Lour.) Harms ranged from 0.311 μmol/m2/h for valeraldehyde to 0.677 μmol/m2/h for formaldehyde, and 0.526 μmol/m2/h for propionaldehyde to 1.440 μmol/m2/h for formaldehyde, respectively. However, when the light intensities varied from 0 to 600 lx, a significant correlation between the aldehyde removal rate and the light intensity was found. Moreover, the CO2 experiments showed that the total aldehyde removal rates of Schefflera octophylla (Lour.) Harms and Chamaedorea elegans (Lour.) Harms decreased 32.0% and 43.2%, respectively, with increasing CO2 concentrations from 350 ppmv to 1400 ppmv. This might be explained by the fact that the excessive CO2 concentration decreased the stomatal conductance which limited the carbonyl uptake from the stomata. View Full-Text
Keywords: houseplants; light intensities; CO2; low-molecular weight; aldehydes; removal houseplants; light intensities; CO2; low-molecular weight; aldehydes; removal
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MDPI and ACS Style

Li, J.; Xie, C.-J.; Cai, J.; Yan, L.-S.; Lu, M.-M. Removal of Low-Molecular Weight Aldehydes by Selected Houseplants under Different Light Intensities and CO2 Concentrations. Atmosphere 2016, 7, 144.

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