Special Section Fate Of Pesticides In The Atmosphere
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Author |
: Harrie F.G. van Dijk |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 286 |
Release |
: 2013-04-17 |
ISBN-10 |
: 9789401715362 |
ISBN-13 |
: 940171536X |
Rating |
: 4/5 (62 Downloads) |
Synopsis Fate of Pesticides in the Atmosphere: Implications for Environmental Risk Assessment by : Harrie F.G. van Dijk
Global pesticide use is currently estimated at approximately 2. 5 billion kg per year (Pimentel eta/. , 1998). To be effective, pesticides need to persist for a certain period of time. However, the longer their persistence, the greater the potential for transport of a fraction of the amount applied away from the target area. Pesticides are dispersed in the environment by water currents, wind, or biota. Pesticides can directly contaminate ground and surface waters by leaching, surface run-off and drift. Pesticides can also enter the atmosphere during application by evaporation and drift of small spray droplets, that remain airborne. Following application, pesticides may volatilise from the crop or the soil. Finally, wind erosion can cause soil particles and dust loaded with pesticides to enter the atmosphere. The extent to which pesticides enter the air compartment is dependent upon many factors: the properties of the substance in question (e. g. vapour pressure), the amount used, the method of application, the formulation, the weather conditions (such as wind speed, temperature, humidity), the nature of the crop and soil characteristics. Measurements at application sites reveal that sometimes more than half of the amount applied is lost into the atmosphere within a few days (Spencer and Cliath, 1990; Taylor and Spencer; 1990; Van den Berg et a/. , this issue).
Author |
: |
Publisher |
: |
Total Pages |
: |
Release |
: 1999 |
ISBN-10 |
: OCLC:1046395826 |
ISBN-13 |
: |
Rating |
: 4/5 (26 Downloads) |
Synopsis Special section fate of pesticides in the atmosphere by :
Author |
: Harrie F. G. Van Dijk |
Publisher |
: |
Total Pages |
: 288 |
Release |
: 2014-03-14 |
ISBN-10 |
: 9401715378 |
ISBN-13 |
: 9789401715379 |
Rating |
: 4/5 (78 Downloads) |
Synopsis Fate of Pesticides in the Atmosphere by : Harrie F. G. Van Dijk
Author |
: National Research Council |
Publisher |
: National Academies Press |
Total Pages |
: 541 |
Release |
: 1993-02-01 |
ISBN-10 |
: 9780309049337 |
ISBN-13 |
: 0309049334 |
Rating |
: 4/5 (37 Downloads) |
Synopsis Soil and Water Quality by : National Research Council
How can the United States meet demands for agricultural production while solving the broader range of environmental problems attributed to farming practices? National policymakers who try to answer this question confront difficult trade-offs. This book offers four specific strategies that can serve as the basis for a national policy to protect soil and water quality while maintaining U.S. agricultural productivity and competitiveness. Timely and comprehensive, the volume has important implications for the Clean Air Act and the 1995 farm bill. Advocating a systems approach, the committee recommends specific farm practices and new approaches to prevention of soil degradation and water pollution for environmental agencies. The volume details methods of evaluating soil management systems and offers a wealth of information on improved management of nitrogen, phosphorus, manure, pesticides, sediments, salt, and trace elements. Landscape analysis of nonpoint source pollution is also detailed. Drawing together research findings, survey results, and case examples, the volume will be of interest to federal, state, and local policymakers; state and local environmental and agricultural officials and other environmental and agricultural specialists; scientists involved in soil and water issues; researchers; and agricultural producers.
Author |
: Michael S. Majewski |
Publisher |
: CRC Press |
Total Pages |
: 215 |
Release |
: 2019-06-21 |
ISBN-10 |
: 9781439822609 |
ISBN-13 |
: 1439822603 |
Rating |
: 4/5 (09 Downloads) |
Synopsis Pesticides in the Atmosphere by : Michael S. Majewski
Most people know about the presence and health effects of pesticide residues in the water they drink. However, they may not realize the impact of atmospheric transportation and deposition of pesticides on water quality. Scientific studies of pesticides in various atmospheric matrices (air, rain, snow, aerosols, and fog) provide some of the answers.
Author |
: Harrie F.G. van Dijk |
Publisher |
: Springer |
Total Pages |
: 0 |
Release |
: 1999-10-31 |
ISBN-10 |
: 0792359941 |
ISBN-13 |
: 9780792359944 |
Rating |
: 4/5 (41 Downloads) |
Synopsis Fate of Pesticides in the Atmosphere: Implications for Environmental Risk Assessment by : Harrie F.G. van Dijk
Global pesticide use is currently estimated at approximately 2. 5 billion kg per year (Pimentel eta/. , 1998). To be effective, pesticides need to persist for a certain period of time. However, the longer their persistence, the greater the potential for transport of a fraction of the amount applied away from the target area. Pesticides are dispersed in the environment by water currents, wind, or biota. Pesticides can directly contaminate ground and surface waters by leaching, surface run-off and drift. Pesticides can also enter the atmosphere during application by evaporation and drift of small spray droplets, that remain airborne. Following application, pesticides may volatilise from the crop or the soil. Finally, wind erosion can cause soil particles and dust loaded with pesticides to enter the atmosphere. The extent to which pesticides enter the air compartment is dependent upon many factors: the properties of the substance in question (e. g. vapour pressure), the amount used, the method of application, the formulation, the weather conditions (such as wind speed, temperature, humidity), the nature of the crop and soil characteristics. Measurements at application sites reveal that sometimes more than half of the amount applied is lost into the atmosphere within a few days (Spencer and Cliath, 1990; Taylor and Spencer; 1990; Van den Berg et a/. , this issue).
Author |
: Hwei-Hsien Cheng |
Publisher |
: |
Total Pages |
: 0 |
Release |
: 1990 |
ISBN-10 |
: 089118791X |
ISBN-13 |
: 9780891187912 |
Rating |
: 4/5 (1X Downloads) |
Synopsis Pesticides in the Soil Environment by : Hwei-Hsien Cheng
Pesticides in the soil environment - an overview. Pesticide sources to the soil and principles of spray physics. The retention processes: mechanisms. Sorption estimates for modeling. Abiotic transformations in water, sediments, and soil. Biological transformation processes of pesticides. Volatilization and vapor transport processes. Organic chemical transport to Groundwater. Movement of pesticides into surface waters. Modeling pesticide fate in soils. Efficacy of soil-applied pesticides. Impact of pesticides on the environment. Risk/benefit and regulations. Chemical index.
Author |
: Michael S. Majewski |
Publisher |
: |
Total Pages |
: 212 |
Release |
: 1995 |
ISBN-10 |
: UCSD:31822008819773 |
ISBN-13 |
: |
Rating |
: 4/5 (73 Downloads) |
Synopsis Pesticides in the Atmosphere by : Michael S. Majewski
Author |
: James W. Biggar |
Publisher |
: Agricultural Experiment Station Di Natural Resources Univers |
Total Pages |
: 176 |
Release |
: 1987 |
ISBN-10 |
: UCSD:31822002407369 |
ISBN-13 |
: |
Rating |
: 4/5 (69 Downloads) |
Synopsis Fate of Pesticides in the Environment by : James W. Biggar
Abstract: This is a compilation of the proceedings of a seminar of the same title held in Sacramento, CA on March 4 and 5, 1985. It includes sections on pesticide classes, physiochemical fate processes, and case studies of the reaction of several pesticides in environmental situations. Helpful information for growers, applicators, and advisors is provided.
Author |
: Jerald L. Schnoor |
Publisher |
: John Wiley & Sons |
Total Pages |
: 478 |
Release |
: 1992-04-16 |
ISBN-10 |
: 0471502324 |
ISBN-13 |
: 9780471502326 |
Rating |
: 4/5 (24 Downloads) |
Synopsis Fate of Pesticides and Chemicals in the Environment by : Jerald L. Schnoor
A result of important bilateral scientific agreements between the U.S. and the Soviet Union on the fate of chemicals and pesticides in the environment. Written by experts in both countries, it familiarizes the reader with recent state-of-the-art research being conducted in the areas of agricultural management and water pollution control. A number of models are provided to give the reader a concise grasp of exposure and ecological risk assessments involving these pollutants. Focuses on the necessity to improve our deteriorating standards of public health, environmental science and technology with a total systems approach through the pooled talents of scientists and engineers.