|Horgan, Brian - UNIV. OF MINNESOTA|
Submitted to: American Chemical Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: June 30, 2005
Publication Date: August 8, 2005
Citation: Rice, P.J., Horgan, B. 2005. Differential application of fluorobenzoic acids to evaluate surface runoff from turf grass [abstract]. American Chemical Society. Picogram Issue No. 69. p. 72. Technical Abstract: Potassium bromide and fluorobenzoic acids, traditional and alternative conservative-tracers, have been utilized as valuable hydrologic tools for characterizing water movement through soil. In this study, three fluorobenzoic acids (2,6-difluorobenzoic acid, o-trifluoromethylbenzoic acid, and pentafluorobenzoic acid) and potassium bromide were applied to selected locations of fairway turf to evaluate water movement and the influence of location of chemical application to transport with surface runoff. Use of conservative water-soluble tracers represents a worst-case scenario for off-site movement of pesticides and fertilizers with runoff, and can identify areas of high impact that contribute the most to chemical transport. This data can be utilized in model simulations to assess potential environmental impacts as well as provide information to determine cultural practices or application strategies to reduce off-site transport of applied chemicals, increasing their efficacy at intended sites of application and minimizing adverse impacts to surrounding sensitive non-target areas.