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This document provides guidance on how to conduct terrestrial field dissipation studies to demonstrate the transformation, transport and fate of pesticides under representative actual use conditions when a pesticide product is used according to the label.
Terrestrial Field Dissipation Studies: Purpose, Design, and Interpretation discusses the design, conduct, and interpretation of terrestrial field dissipation studies. Field studies provide information on the effects of agricultural chemicals in the environment. Field studies differ from laboratory studies because they study the effects of active ingredients in soil and/or water under actual field conditions as opposed to a controlled environment in the laboratory. Terrestrial Field Dissipation Studies: Purpose, Design, and Interpretation includes analytical method requirements, examples of modeling pesticide dissipation, and summaries of regulatory guidelines, such as the EPA/PMRA proposed guidance in 1998.
This document provides additional detailed guidance on rotational crop residue studies conducted according to OECD TG 504: Residues in Rotational Crops with expanded flexibility in crop commodities to be tested, and approaches to mitigate additional testing.
Accurate risk assessment is critical to pesticide regulation. This authoritative reference provides an exhaustive evaluation of current agrochemical environmental fate studies, a critical review of current EPA pesticide assessment guidelines, and a wide variety of environmental simulation models. Divided into four sections, this well-organized book provides a wealth of data and information vital to anyone involved in environmental exposure assessment, groundwater, surface water, and water contamination, pesticide regulation, and environmental simulation modeling. At your fingertips, you will have the latest information on the development of meaningful environmental fate data and how this information will result in accurate assessment of potential environmental and human hazards. The inadequacy of current regulatory guidelines and the resulting nonscientific assessment of agrochemical environmental fate are discussed in detail. A wide variety of environmental fate studies are included to demonstrate the current use of data to assess environmental fate and potential hazards associated with agrochemical use. Finally, ten chapters discuss the use of computer models that have been developed for analyzing and integrating data from a variety of environmental fate studies on agrochemicals used under various field conditions.
At the heart of environmental protection is risk assessment: thelikelihood of pollution from accidents; the likelihood of problemsfrom normal and abnormal operation of industrial processes; thelikely impacts associated with new synthetic chemicals; and so on.Currently, risk assessment has been very much in the news--therisks from BSE and E. coli, and the public perception of risks fromnuclear waste, etc. This new publication explains how scientificmethodologies are used to assess risk from human activities and theresultant objects and wastes, on people and the environment.Understanding such risks supplies crucial information--to framelegislation, manage major habitats, businesses and industries, andcreate development programmes. Unique in combining the science of risk assessment with thedevelopment of management strategies. Covers science and social science (politics, economics,psychology) aspects. Very timely - risk assessment lies at the heart of decisionmaking in various topical environmental questions (BSE, Brent Spar,nuclear waste).