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Uptake of Aldehydes and Ketones at Typical Indoor Concentrations by Houseplants

Tani, Akira and Hewitt, C. N. (2009) Uptake of Aldehydes and Ketones at Typical Indoor Concentrations by Houseplants. Environmental Science & Technology, 43 (21). pp. 8338-8343. ISSN 0013-936X

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Abstract

The uptake rates of low-molecular weight aldehydes and ketones by peace lily (Spathiphyllum clevelandii) and golden pothos (Epipremnum aureum) leaves at typical indoor ambient concentrations (10(1)-10(2) ppbv) were determined, The C3-C6 aldehydes and C4-C6 ketones were taken up by the plant leaves, but the C3 ketone acetone was not The uptake rate normalized to the ambient concentration C-a ranged from 7 to 19 mmol m(-2) s(-1) and from 2 to 7 mmol m(-2) s(-1) for the aldehydes and ketones, respectively. Longer-term fumigation results revealed that the total uptake amounts were 30-100 times as much as the amounts dissolved in the leaf, suggesting that volatile organic carbons are metabolized in the leaf and/or translocated through the petiole. The ratio of the intercellular concentration to the external (ambient) concentration (C-j/C-a) was significantly lower for most aldehydes than for most ketones. In particular, a linear unsaturated aldehyde, crotonaldehyde, had a C-i/C-a ratio of similar to 0, probably because of its highest solubility in water.

Item Type: Article
Journal or Publication Title: Environmental Science & Technology
Uncontrolled Keywords: VOLATILE ORGANIC-COMPOUNDS ; SPECTROMETRY PTR-MS ; AIR-QUALITY ; ABSORPTION ; FORMALDEHYDE ; POLLUTANTS ; ATMOSPHERE
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 51548
Deposited By: ep_importer_pure
Deposited On: 25 Nov 2011 12:58
Refereed?: Yes
Published?: Published
Last Modified: 06 Sep 2013 23:10
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/51548

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