| Title: | Uptake of aldehydes and ketones at typical indoor concentrations by houseplants |
| Address: | "Institute for Environmental Sciences, University of Shizuoka, Shizuoka 422-8526, Japan. atani@u-shizuoka-ken.ac.jp" |
| ISSN/ISBN: | 0013-936X (Print) 0013-936X (Linking) |
| 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(i)/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 approximately 0, probably because of its highest solubility in water" |
| Keywords: | "Acetone/analysis Air Pollution, Indoor/*analysis Aldehydes/*metabolism Biodegradation, Environmental Ketones/*metabolism Kinetics Plant Stomata/physiology Plants/*metabolism Steam/analysis Time Factors Volatile Organic Compounds/analysis;" |
| Notes: | "MedlineTani, Akira Hewitt, C Nicholas eng Research Support, Non-U.S. Gov't 2009/11/21 Environ Sci Technol. 2009 Nov 1; 43(21):8338-43. doi: 10.1021/es9020316" |
