CHED 849 |
| Ivan Stefanov, Brandon Seda, Heather Sutton, and Marina Koether. |
| The treatment of drinking water is accomplished through the use of monomeric and/or polymeric aluminum species. The goal of this study was to investigate their relative toxicity to wetland plants. Native wetland plant species tested were swamp milkweed (Asclepias incarnata), and saw-tooth sunflower (Helianthus grosseserratus), both flowering herbaceous species. In addition, the agricultural plant radish (Raphanus sativus) was tested, as it is a surrogate for native plants. Concentrations ranging from 0 to 500mg/L were evaluated. Endpoints measured were shoot and root length and mass, as well as internal plant concentrations of aluminum and various nutrients. Despite high variability in the data, a number of patterns emerged. Radish showed more differences in effect between the two aluminum species than the native plant species did. With some of the internal plant aluminum or nutrient concentrations, the two aluminum species caused a different pattern of response. |
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Undergraduate Research Poster Session: Environmental Chemistry
2:00 PM-4:00 PM, Monday, 27 March 2006 Georgia World Congress Center -- Ex. Hall B4, Poster
Division of Chemical Education |