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 and Technology, 43 (21). pp. 8338-8343. ISSN 0013-936X

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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.

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Journal Article
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Environmental Science and Technology
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25 Nov 2011 12:58
Last Modified:
18 Sep 2023 00:29