Web URL(s): http://www.tandfonline.com/doi/pdf/10.1081/PFC-100106183 Publication Type:
i
Report Author(s): Hong, S. ;
Smith, A. E. Author Affiliation: Department of Crop and Soil Sciences, College of Agricultural and Environmental Sciances, The University of Georgia, Georgia Experiment Station, Griffin, GA Title: Sorption and mobility of dithiopyr in golf course greens rooting medium Source: Journal of Environmental Science and Health: Part B: Pesticides, Food Contaminants, and Agricultural Wastes . Vol. B36, No. 5, 2001, p. 529-543.# of Pages: 15 Publishing Information: New York: Marcel Dekker Keywords: TIC Keywords: Pesticide fate ; Sorption ; Mobility ; Dithiopyr ; Golf courses ; Golf greens ; Root zone ; Temperatures ; Peat ; Sand ; pH ; Lysimeters ; Drainage ; Surface runoff ; Groundwater contamination Abstract/Contents: "Sorption and mobility of dithiopyr in golf course greens rooting medium (RM) were studied. The sorption increased from 20 to 27°C at 24 h after treatment (HAT) and reached equilibrium in 48 HAT at 20°C. The sorption isotherms had Freundlich values (KF ) of 1122, 27.44 to 35.16, and 0.053 to 0.168 for peat moss, the RM, and quartz sand, respectively, and solid to aqueous phase partition coefficients (Kd ) of 470 to 1706 L/kg, 14.61 to 84.4 L/kg, and 0.07 to 0.29 L/kg for peat moss, RM, and quartz sand, respectively. Generally, higher dithiopyr concentration in the aqueous solution and the reduced pH of the solution corresponded to the higher Kd values. The average values for dispersion (D, cm^D2/min), retardatoin coefficient (R), Bβ and Wω parameters for solute transport in the RM lysimeter; obtained from CXTFIT curve fitting of BR- breakthrough curves; were 0.95, 1.01, 1, and 93.89, respectively. After elutriation by 18 L of aqueous KNO3 (10 mM), greater than 90% of the added dithiopyr remained in the top 10 cm of the RM lysimeter and no detectable dithiopyr was present at depths beyond 35 cm. The lysimeter effluent contained dithiopyr at concentrations less than 3.5 μg/L. The R value obtained from CXFIT curve fitting is 38.5. Results from both sorption and mobility experiments indicated that dithiopyr is quite immobile in golf course greens RM and has minimal potential for movement into surface water drainage or ground water." Language: English References: 20 Note: Tables ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): J. Environ. Sci. Health. B36(5):p. 529-543.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=76644 If there are problems with this record, send us feedback about record 76644 . Choices for finding the above item : Web URL(s): http://www.tandfonline.com/doi/pdf/10.1081/PFC-100106183 QH 545 .P4 J6 Find from within TIC: Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
