Download or read book Modeling the Processes that Influence the Fate and Transport of Atrazine in the Active surface Soil Horizon written by Susan Kaye Neurath and published by . This book was released on 2000 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2000 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Chemical Transport in Soils written by Hossein Ghadiri and published by CRC Press. This book was released on 1992-09-23 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling Chemical Transport in Soils: Natural and Applied Contaminants provides a comprehensive discussion of mathematical models used to anticipate and predict the consequences and fate of natural and applied chemicals. The book evaluates the strengths, weaknesses, and possibilities for application of numerous models used throughout the world. It examines the theoretical support and need for experimental calibration for each model. The book also reviews world literature to discuss such topics as the movement of sorbed chemicals by soil erosion, the movement of reactive and nonreactive chemicals in the subsurface and groundwater, and salt transport in the landscape. Modeling Chemical Transport in Soils: Natural and Applied Contaminants is an important volume for environmental scientists, agricultural engineers, regulatory personnel, farm managers, consultants, and the chemical industry.
Download or read book Modeling Fate and Transport of Atrazine in the Saturated Unsaturated Zone of Soil written by Prasun Kumar Allepalli and published by . This book was released on 1996 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Persistence of Atrazine Metolachlor and Metribuzin as Influenced by Temperature Soil Moisture and Soil Characteristics written by and published by . This book was released on 1995 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a study conducted to: determine the kinetics of dissipation & bound residue formation of widely used pesticides (the herbicides atrazine, metolachlor, & metribuzin) in the Great Lakes area; test laboratory derived dissipation & bound residue formation data; provide decay rates & hydrologic transport parameters for soils in the Great Lakes Basin as input for simulation models; and modify the LEACHP pesticide fate & transport model to provide improved measures of pesticide dissipation kinetics. The study involved a series of experiments and field tests to determine the effect of soil structure on dissipation & bound residue formation, the kinetics of dissipation & bound residue formation in the laboratory & field, the leaching of herbicides, the release of aged residues, and water & transport parameters for use in the model. Results discussed include the variations in herbicide dissipation among different types of soils and tillage practices, the mineralization & volatilization of herbicides in the field, and the performance of the modified LEACHP model.
Download or read book Biodegradation of Atrazine in Subsurface Environments written by Jim Sinclair and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Field and Modeling Study of Atrazine Transport and Fate in Groundwater written by Jonathan Levy and published by . This book was released on 1993 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence and Application Rate on Atrazine Fate in Coarse and Fine textured Wisconsin Soils written by Jeffery Earl Hanson and published by . This book was released on 1997 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential Effects of Large Floods on the Transport of Atrazine Into the Alluvial Aquifer Adjacent to the Lower Platte River Nebraska written by J. D. Frankforter and published by . This book was released on 1997 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling the Fate and Transport of Atrazine in the Upper Chesapeake Bay written by Kristin M. Goetchius and published by . This book was released on 2002 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Ground water Vulnerability to Atrazine Leaching in Kent County Michigan written by David J. Holtschlag and published by . This book was released on 1998 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Application of Watershed Regressions for Pesticides WARP for Estimating Atrazine Concentration Distributions in Streams written by Steven J. Larson and published by . This book was released on 2004 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Atrazine Adsorption at the Air silica Interface written by Nadia Ninel Casillas Ituarte and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorption-desorption processes of pesticides on clay minerals strongly influence the fate of pesticides in soil environments. Soils are heterogeneous mixtures and there are many interrelated factors that play important roles in the sorption process. In order to elucidate the binding mechanism between an herbicide and a soil constituent, model systems have been used. Atrazine [6-chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine], one of the most common members of the s-triazine herbicide family has been detected in ground and surface waters, and in precipitation. Despite the extensive work available on the atrazine sorption process, little is known at the molecular level about the interactions of atrazine with clays. A surface-selective, technique sum frequency generation (SFG) spectroscopy, is used in this study to examine the air-solid interface of atrazine on silica, providing detailed, molecular information about the distribution of this herbicide at the silica surface. Atrazine interacts with the surface of silica through hydrogen bonding of the amine moieties and the silanol OH groups. This weak bonding interaction suggests that atrazine, once adsorbed onto the clay fraction of soils, is easily desorbed. It can then be transported deeper into the soils, and ultimately into the ground water. This proposed hydrogen bonding mechanism is consistent with previous studies of atrazine sorption on clay minerals.
Download or read book Atrazine in North American Surface Waters written by Jeffrey M. Giddings and published by SETAC. This book was released on 2005 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atrazine Fate and Transport in a Created Flow through Emergent Marsh written by Mark Allen Dilley and published by . This book was released on 2003 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
