Given the essential role that primary producers play in aquatic ecosystems, it is imperative that the potential risk of pesticides to the structure and functioning of aquatic plants is adequately assessed. An integration of regulatory and research information from key specialists in the area of environmental regulation, Aquatic Macrophyte Risk Assessment for Pesticides provides a state-of-the-art guide to ecotoxicological risk assessment. Written by well-known experts in the field of aquatic risk assessment, this book is a practical reference for the assessment of the risk of pesticides with herbicidal activity to aquatic macrophytes. The book supplies a concise, coherent, and science-based view from influential regulators, academics, and industry scientists. They address the selection of additional species, critical regulatory endpoints, and assessing the risk of plant protection products to aquatic macrophytes. They also present a clear description of key issues in macrophyte risk assessment, information on macrophyte test methods, suitable measurement endpoints, and data evaluation and interpretation. Filled with recommendations distilled from existing regulatory experiences of aquatic macrophyte risk assessment, the book includes case studies to identify issues, data gaps, and inadequacies in study design. It also identifies improvements to risk assessment that could be implemented immediately and those for which further research is needed. An authoritative resource, the book points the way to an improved approach to aquatic macrophyte risk assessment.

Bringing together more than thirty influential regulators, academics, and industry scientists, Ecological Models for Regulatory Risk Assessments of Pesticides: Developing a Strategy for the Future provides a coherent, science-based view on ecological modeling for regulatory risk assessments. It discusses the benefits of modeling in the context of registrations, identifies the obstacles that prevent ecological modeling being used routinely in regulatory submissions, and explores the actions needed to overcome these obstacles. The book focuses on the following issues: Uncertainties in the process of model development, such as design, analysis, documentation, and communication The availability of data and background information needed for optimal modeling The limited knowledge of modeling The lack of confidence in the outcome of ecological models and their reliability in pesticide risk assessment It also suggests future solutions to these challenges, including: A guidance document on the modeling process Case studies that show how ecological models can provide reliable ecologically relevant risk assessments Training the people who generate or evaluate results obtained by ecological models Focusing on ecological models, such as unstructured population models, stage-structured matrix models, and individual- or agent-based models, this volume helps regulatory authorities, manufacturers, and scientists assess the risk of plant protection products in nontarget organisms. Armed with this knowledge, readers will better understand the challenges of using ecological modeling in the regulatory process.

Given the essential role that primary producers play in aquatic ecosystems, it is imperative that the potential risk of pesticides to the structure and functioning of aquatic plants is adequately assessed. An integration of regulatory and research information from key specialists in the area of environmental regulation, Aquatic Macrophyte Risk Assessment for Pesticides provides a state-of-the-art guide to ecotoxicological risk assessment. Written by well-known experts in the field of aquatic risk assessment, this book is a practical reference for the assessment of the risk of pesticides with herbicidal activity to aquatic macrophytes.

The book supplies a concise, coherent, and science-based view from influential regulators, academics, and industry scientists. They address the selection of additional species, critical regulatory endpoints, and assessing the risk of plant protection products to aquatic macrophytes. They also present a clear description of key issues in macrophyte risk assessment, information on macrophyte test methods, suitable measurement endpoints, and data evaluation and interpretation.

Filled with recommendations distilled from existing regulatory experiences of aquatic macrophyte risk assessment, the book includes case studies to identify issues, data gaps, and inadequacies in study design. It also identifies improvements to risk assessment that could be implemented immediately and those for which further research is needed. An authoritative resource, the book points the way to an improved approach to aquatic macrophyte risk assessment.

Based on discussions at the 2007 SETAC Europe PERAS Workshop in Coimbra, Semi-Field Methods for the Environmental Risk Assessment of Pesticides in Soil presents a timely summary of state-of-the-art higher-tier terrestrial risk assessment of plant protection products (PPPs). Influential regulators, academics, and industry scientists provide a comprehensive, science-based view to guide regulatory authorities and manufacturers in assessing the higher-tier terrestrial risks of PPPs in the environment. The book includes a clear description of how to perform a higher-tier terrestrial risk assessment and provides a single reference on the subject. It examines various types of semi-field methods for soil assessment, including the use of terrestrial model ecosystems for pesticide risk assessment. In addition, the text also explores legislative and regulatory issues and offers technical recommendations. The book provides guidance on how to assess the soil risks of pesticides in the environment and explains how to use semi-field methods to access how pesticides may lead to spatial and temporal changes in soil biological communities and the larger agricultural landscape.