Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates


Book Description

Sediment contamination is a widespread environmental problem that can potentially pose a threat to a variety of aquatic ecosystems. The sediment test methods in this manual will be used by The United States Environmental Protection Agency (USEPA) to make decisions under a range of statutory authorities concerning such issues as: dredged material disposal, registration of pesticides and toxic substances, superfound site assessment, and assessment and cleanup of hazardous waste treatment, storage, and disposal facilities. The use of uniform sediment testing procedures by USEPA programs is expected to increase data accuracy and precision, facilitate test replication, increase the comparative value of test results, and ultimately, increase the efficiency of regulatory processes requiring sediment tests.







Ecotoxicological QSARs


Book Description

This volume focuses on computational modeling of the ecotoxicity of chemicals and presents applications of quantitative structure–activity relationship models (QSARs) in the predictive toxicology field in a regulatory context. The extensive book covers a variety of protocols for descriptor computation, data curation, feature selection, learning algorithms, validation of models, applicability domain assessment, confidence estimation for predictions, and much more, as well as case studies and literature reviews on a number of hot topics. Written for the Methods in Pharmacology and Toxicology series, chapters include the kind of practical advice that is essential for researchers everywhere. Authoritative and comprehensive, Ecotoxicological QSARs is an ideal source to update readers in the field with current practices and introduce to them new developments and should therefore be very useful for researchers in academia, industries, and regulatory bodies.




Mixture Toxicity


Book Description

In the last decade and a half, great progress has been made in the development of concepts and models for mixture toxicity, both in human and environmental toxicology. However, due to their different protection goals, developments have often progressed in parallel but with little integration. Arguably the first book to clearly link ecotoxicology an










OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 426: Developmental Neurotoxicity Study


Book Description

A developmental neurotoxicity study will provide information on the effects of repeated exposure to a substance during in utero and early postnatal development. The test substance is administered daily, generally orally, to mated females (rats are ...




Series on Pesticides and Biocides Guidance Document on Overview of Residue Chemistry Studies (Second Edition)


Book Description

This Overview Guidance Document summarises the major guidance aspects provided in the OECD Guidelines for the Testing of Chemicals, Section 5. This document also develops an approach for a Global Maximum Residue Limit (MRL) process to achieve use of a single globally acceptable feeding study for MRL setting and risk assessment for livestock food commodities that involves four key components: 1) Harmonised Guidance for the Definition of Residue; 2) Reasonable Worst Case Animal Diets/Maximum Reasonably Balanced Diet; 3) Harmonised Table of Livestock Feed Commodities; and 4) Definition of Reasonable Worst Case Livestock Feeding Levels.