TP6 Degradates in the Environment
202 Oregon Ballroom
1:20 PM - 4:40 PM, Tuesday
() Mobility and Transformation of Atrazine Degradates in Soil.
Coats, J.1, Henderson, K. L.1, Belden, J.1, Zhao, S., Phillips, T.1, Arthur, E.1, 1 Iowa State University, Ames, Iowa, USA
ABSTRACT- The fate of atrazine and five principal degradates have been examined in soils. Specifically, deethyl atrazine, deisopropyl atrazine, didealkyl atrazine, hydroxy atrazine, and ammeline, as well as atrazine, have been compared in laboratory studies for their mobility and their degradability in different soil types. Deethyl atrazine has been evaluated for persistence in surface and subsurface soils, as well as for its mobility and persistence in intact soil columns collected from the field. The production of degradates in phytoremediation studies has accentuated the need for mass balance studies to understand the fate of the degradates and parent in soil. The individual and composite roles of the rhizosphere microbes and the plants in the phytoremediation system must be determined to ascertain the significance of the parent and degradates in the environment.
Key words: atrazine degradates, atrazine, metabolites, phytoremediation