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Nitrates in Groundwater

Langue : Anglais

Auteur :

Couverture de l’ouvrage Nitrates in Groundwater
This time-saving book provides extensive coverage of all important aspects of nitrates in groundwater, ranging from prevention to problem assessment to remediation. It begins by highlighting the nitrogen cycle and related health concerns, providing both background information and a unique perspective on health issues. It then analyzes subsurface processes and the factors and practices that affect them. It thoroughly reviews aquifer vulnerability mapping, an emerging new management tool, and contains a nitrate pollution index that can be used in evaluating actual or potential nitrate pollution from agricultural areas. Best Management Practices are described and evaluated, and possible treatment measures are also explored. Thoroughly researched and well-organized, Nitrates in Groundwater provides a vivid snapshot of the status of nitrates in groundwater today.

Fundamental Aspects of Nitrates in Groundwater. The Nitrogen Cycle. The Nitrogen Cycle in Soil and Groundwater. Sources of Nitrate to Groundwater. National Survey of Nitrates (and Pesticides) in Drinking Water Wells. Health Concerns Related to Nitrates.
Influence of Subsurface Processes. Nitrogen Transformations. Nitrogen Transport And Fate. Factors Influencing Nitrogen Leaching from Fertilizers. Usage of Laboratory Studies.
Illustrations of Nitrate Pollution of Groundwater. Illustrations from the United States. Illustrations from European and Other Countries.
Vulnerability Mapping of Groundwater Resources. Context of Vulnerability Mapping. Summary of 10 Mapping Techniques. Vulnerability Mapping in Belgium. Groundwater Vulnerability to Agricultural Nitrate Pollution in the United Kingdom. Terrain Suitability Rating for Septic Tank Systems in Canada. Groundwater Contamination Susceptibility in Minnesota. DRASTIC: A Standardized System for Evaluating Groundwater Pollution Potential in the United States. Soil/Aquifer Field Evaluation (SAFE). Advantages and Limitations Relative to Vulnerability Mapping.
Development of a Nitrate Pollution Index. Conceptual Framework for Development of an Index. Identification of Pertinent Factors. Assignment of Relative Importance Weights. Establishing Methods for Evaluating Pertinent Factors. Determining Aggregation Approach for the Index. Field Testing of the Index.
Models for Nitrates in the Subsurface Environment. Source Characterization Models. Nitrate Transport Models. Plume Model for Nitrogen Point Source. Management Models for Prevention and Control.
Management Measures for Nitrate Pollution Prevention. Fertilizer Management Measures. Other Management Measures.
Treatment Measures for Nitrates in Groundwater. Treatment by Ion Exchange, Reverse Osmosis, or Electrodialysis. Treatment by Biological Denitrification. Treatment by In Situ Denitrification. Treatment by Other Measures.
Each chapter concludes with a summary and selected references.

Professional
Canter, Larry W.
This thoroughly researched and well-organized book provides extensive coverage of all important aspects of nitrates in groundwater, ranging from prevention to problem assessment to remediation. The author presents a complete survey of the field. It includes such topics as the sources of nitrates in groundwater, aquifer vulnerability to nitrate pollution, how to prevent the occurrence of groundwater nitrate pollution, how to reduce nitrate pollution of groundwater.