Journal article
Distribution and Volatilization of Organic Compounds Following Uptake by Hybrid Poplar Trees
International Journal of Phytoremediation, Vol.1(2), pp.139-151
04/01/1999
DOI: 10.1080/15226519908500012
Abstract
Hybrid poplar trees were exposed to eleven organic compounds in hydroponic systems. The eleven contaminants were common pollutants with a wide range of physio-chemical properties such as the octanol-water partition coefficient, Henry's constant, vapor pressure, and molecular weight. Contaminants,
14
C-labeled, were introduced into the root zone, and contaminant transport and fate were examined. Aqueous concentrations were monitored throughout each experiment as was vapor phase concentrations in the air stream passing over the leaves. At experiment conclusion, plant tissues were oxidized to determine
14
C concentrations. The uptake, distribution, and volatilization of these contaminants varied greatly among the 11 contaminants in the study. Uptake and translocation of the contaminants ranged from < 0.3% (of the applied
14
C-labeled compound) for 1,2,4-trichlorobenzene to 20% for benzene. Volatile compounds were volatilized from the leaves. Volatilization in the transpiration stream was related to the vapor pressure of the compound. The fate and transport mechanisms investigated in this study provide valuable insight into the potential fate of contaminants in full-scale phytoremediation.
Details
- Title: Subtitle
- Distribution and Volatilization of Organic Compounds Following Uptake by Hybrid Poplar Trees
- Creators
- Joel G Burken - 204 Civil Engineering , University of Missouri-RollaJerald L Schnoor - 116 Engineering Research Facility , University of Iowa
- Resource Type
- Journal article
- Publication Details
- International Journal of Phytoremediation, Vol.1(2), pp.139-151
- Publisher
- Taylor & Francis Group
- DOI
- 10.1080/15226519908500012
- ISSN
- 1522-6514
- eISSN
- 1549-7879
- Language
- English
- Date published
- 04/01/1999
- Academic Unit
- Civil and Environmental Engineering; Occupational and Environmental Health
- Record Identifier
- 9983991982802771
Metrics
10 Record Views