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
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Document Type: Research Article
204 Civil Engineering, University of Missouri–Rolla, Rolla, Missouri, 65409, 573-341-6547, 573-341-4729
116 Engineering Research Facility, University of Iowa, Iowa City, Iowa, 52242, 319-335-5049, 319-335-5585
Publication date: April 1, 1999