Download or read book Degradation and Movement of Atrazine and Deisopropylatrazine in Soil written by Ellen Louise Kruger and published by . This book was released on 1992 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Fate of a Herbicide and Four of Its Metabolites in a West Tennessee Soil written by Douglas Augustus Winkelmann and published by . This book was released on 1989 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adsorption Movement and Biological Degradation of Large Concentrations of Selected Pesticides in Soils written by James M. Davidson and published by . This book was released on 1980 with total page 134 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 Formation and Movement of 14C atrazine Degradation Products in a Sandy Loam Silt Loam and Clay Loam Soil Under Field Conditions written by Brent Alan Sorenson and published by . This book was released on 1992 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical Determination of Atrazine Alachlor and Their Selected Degradation Products in Contaminated Groundwater written by Deborah B. DeLuca and published by . This book was released on 1990 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Herbicides Atrazine movement in Soil as Affected by Bulk Density and Soil Moisture written by S. V. S. S. Prasad and published by . This book was released on 1984 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Triazine Herbicides written by Janis Mc Farland Ph.D. and published by Elsevier. This book was released on 2011-08-19 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 50 years, triazines have made a great impact on agriculture and world hunger by assisting in the development of new farming methods, providing greater farming and land use capabilities, and increasing crop yields. Triazines are registered in over 80 countries and save billions of dollars a year. The Triazine Herbicides is the one book that presents a comprehensive view of the total science and agriculture of these chemicals. With emphasis on how the chemicals are studied and developed, reviewed, and used at the agricultural level this book provides valuable insight into the benefits of triazine herbicides for sustainable agriculture. - Presents previously unpublished information on the discovery, development and marketing of herbicides - Includes a vital section on the origin, use, economics and fate of triazine herbicides - Covers benefits of triazines in corn and sorghum, sugarcane, citrus, fruit and nut crops - Establishes best management practice and environmental benefits of use in conservation tillage

Download or read book Degradation of Atrazine by Soil Consortia written by Saber Haghighati Maleki and published by . This book was released on 1997 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil and Tillage Effects on Atrazine Movement in Soils written by Jian Hua and published by . This book was released on 1990 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microbial Degradation of Atrazine in Soils written by Horace D. Skipper and published by . This book was released on 1966 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atrazine is an asymmetrical s-triazine herbicide used pre- and post-emergence for the control of weeds in many crops. Under conditions considered unfavorable for microbial activity, atrazine may persist in soils for extended periods of time. However, the significance of chemical versus microbial degradation is not known. This study was conducted to determine the significance of microbial degradation of atrazine by pure cultures and the native soil population in non-sterile soils. Isolated bacterial cultures were used to inoculate seeds in an attempt to provide protection against atrazine residues. Atrazine-treated soil was incubated at 30°C for varying periods and the subsequent loss of activity was correlated to evolution of 14CO2 from labeled-atrazine in a radiorespirometric system. Microorganisms, mostly bacteria, were isolated from a soil solution; pour plates of atrazine-treated and non-treated soil; and the rhizosphere of corn, oats, tomatoes, and soybeans. Viable cell counts were used as an index to test for the utilization of atrazine as the sole source of carbon. Eight bacterial isolates did not show an appreciable difference in cell counts with or without atrazine as the sole source of carbon. Seed inoculation with a mixture of three bacterial isolates did not increase the growth of oats grown in atrazine-treated soil as an indication of crop protection. In synthetic media bacterial cultures evolved a small amount of 14CO2 from chain-labeled atrazine during the first 24 hours and none thereafter. In sterile soil the same isolates evolved 0.4-0.7 percent of the input activity in two weeks. A mold respired 4.0 percent. No ring breakage was observed. In non-sterile soils, 1.4-1.6 percent of chain and 0.6-1.0 percent of ring-labeled atrazine was evolved in two weeks and 1.1-1.6 percent of ring-labeled hydroxyatrazine. The latter rate was 2-3 fold greater than from ring -labeled atrazine and indicated the formation of hydroxyatrazine as the rate limiting step in the dissipation of atrazine from soils. Data from the incubation experiment showed a 73 percent loss of the initial atrazine after 3-4 weeks. In a similar time period, only 2.2-2.6 percent of chain and 1.0-1.2 percent of ring-labeled atrazine was respired. Thus, the 14CO2 data did not account for the loss of atrazine and further supports the formation of hydroxyatrazine as the rate limiting step. Extraction of the soils containing labeled-atrazine showed the presence of hydroxyatrazine in non-sterile and sterile soils after two weeks. The radiorespirometric system designed for these studies is proposed as a means to obtain a relative index of the residual life of herbicides or pesticides. The 14CO2 data may be extrapolated to give an index based on microbial participation. Extraction of the soils would provide a test for possible non-toxic metabolites that may be formed via chemical reactions. Such data would be most beneficial in selecting and recommending new herbicides.

Download or read book Prediction of Atrazine Distribution and Movement in Soil Systems written by Roger Arliss Swanson and published by . This book was released on 1972 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Some Chemicals that Cause Tumours of the Kidney Or Urinary Bladder in Rodents and Some Other Substances written by IARC Working Group on the Evaluation of Carcinogenic Risks to Humans and published by World Health Organization. This book was released on 1999 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Allyl isothiocyanate; ortho-Anisidine; Atrazine; Butyl benzyl phthalate; Chloroform; Chlorothalonil;Cyclamates;Dichlorobenzenes;Hexachlorobutadiene; Hexachloroethane; d-Limonene; Melamine; Methyl tert-butyl ether; Nitrilotriaceticacid andits salts;Paracetamol; ortho-Phenylphenol and its sodium salt; Potassium bromate ;Quercetin; Saccharin and its salts;Simazine

Download or read book Trace Determination of Pesticides and their Degradation Products in Water BOOK REPRINT written by Damia Barcelo and published by Elsevier. This book was released on 1997-12-15 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trace Determination of Pesticides and their Degradation Products in Water is a critical compilation of analytical methods for the monitoring of pesticides and their degradation products in water. It contains up-to-date material and is the result of the authors' experience in the pesticide analysis field. The book is structured in six chapters, starting from general aspects of pesticides like usage, physicochemical parameters and occurrence in the environment. A second chapter is devoted to sampling from water matrices, stability methods of pesticides in water and quality assurance issues. The general chromatographic methods for pesticides are reported, including the newly developed electrophoresis methods and GC-MS and LC-MS confirmatory analytical methods. Sample preparation methodologies, including off-line and on-line techniques are described in the next two chapters, with a comprehensive list of examples of pesticides and many metabolites, including the use of different GC-methods and LC-methods. The final chapter is devoted to the development of biological techniques, immunoassays and biosensors, for the trace determination of pesticides in water samples.

Download or read book Aging of 14C labeled Atrazine Residues in Soil Location Characterization and Biological Accessibility written by Nicolai David Jablonowski and published by Forschungszentrum Jülich. This book was released on 2009 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Oxidation Processes for Water Treatment written by Mihaela I. Stefan and published by IWA Publishing. This book was released on 2017-09-15 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes (AOPs) rely on the efficient generation of reactive radical species and are increasingly attractive options for water remediation from a wide variety of organic micropollutants of human health and/or environmental concern. Advanced Oxidation Processes for Water Treatment covers the key advanced oxidation processes developed for chemical contaminant destruction in polluted water sources, some of which have been implemented successfully at water treatment plants around the world. The book is structured in two sections; the first part is dedicated to the most relevant AOPs, whereas the topics covered in the second section include the photochemistry of chemical contaminants in the aquatic environment, advanced water treatment for water reuse, implementation of advanced treatment processes for drinking water production at a state-of-the art water treatment plant in Europe, advanced treatment of municipal and industrial wastewater, and green technologies for water remediation. The advanced oxidation processes discussed in the book cover the following aspects: - Process principles including the most recent scientific findings and interpretation. - Classes of compounds suitable to AOP treatment and examples of reaction mechanisms. - Chemical and photochemical degradation kinetics and modelling. - Water quality impact on process performance and practical considerations on process parameter selection criteria. - Process limitations and byproduct formation and strategies to mitigate any potential adverse effects on the treated water quality. - AOP equipment design and economics considerations. - Research studies and outcomes. - Case studies relevant to process implementation to water treatment. - Commercial applications. - Future research needs. Advanced Oxidation Processes for Water Treatment presents the most recent scientific and technological achievements in process understanding and implementation, and addresses to anyone interested in water remediation, including water industry professionals, consulting engineers, regulators, academics, students. Editor: Mihaela I. Stefan - Trojan Technologies - Canada