Download or read book Evaluating Endocrine Disruption in Receiving Waters written by P. V. Cline and published by IWA Publishing. This book was released on 2003-01-01 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, concerns have been raised that low concentrations of chemicals may alter the normal functions of the endocrine system, resulting in potentially significant adverse effects on growth, reproduction, and/or development. For domestic wastewater discharges to surface water bodies, estrogenic activity of effluents has been suggested by chemical analysis, biomarkers, and /or in vitro assays. Chemical Measurements. Using sensitive analytical techniques, natural or synthetic hormones and chemicals that mimic estrogen, have been detected in some domestic wastewater effluents and associated watersheds at low concentrations. Biomarkers. Several studies have demonstrated physiological changes in fish that may be attributed to exposure to estrogenic compounds. These include the presence of vitellogenin protein in male fish and/or intersex conditions. In vitro assays. The Yeast Estrogen Screen (YES) has been used to characterize estrogenicity of effluents, influents, biosolids and surface waters. This two-year WERF project explored approaches to evaluate the potential for biomarker formation as a result of effluent exposures, and the subsequent relevance of the emerging assays and physiological measurements on potential adverse impacts to individuals or populations of fish in the receiving streams. The endocrine system is complex, and many factors can influence the physiological measurements, including methods, sex, age, reproductive status, seasonal and circadian rhythms, diet, temperature, etc. and produce transient changes in physiology but no significant effect on the individual.
Download or read book Evaluating Endocrine Disruption In Receiving Waters written by and published by . This book was released on 2002 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating Endocrine Disruption in Receiving Waters written by Patricia V. Cline and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endocrine Disrupters in Wastewater and Sludge Treatment Processes written by Jason W. Birkett and published by CRC Press. This book was released on 2002-11-25 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endocrine Disrupting Chemicals (EDCs) have been shown to produce changes in the endocrine system of organisms, leading to increases in cancers and abnormalities in reproductive structure and function. This book presents research on the endocrine-disrupting effects of sewage and industrial effluents, covering the sources, fate, and transport of EDCs
Download or read book Endocrine disrupting Chemicals in Drinking Water written by United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Energy and Environment and published by . This book was released on 2012 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Endocrine Disruption in Aquatic Systems Associated with the National Water Quality Assessment NAWQA Program written by and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the Environmental Protection Agency s State of the science Evaluation of Nonmonotonic Dose response Relationships as They Apply to Endocrine Disruptors written by National Research Council (U.S.). Committee to Review EPA's State of the Science Paper on Nonmonotonic Dose Reponse and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potential health effects from chemicals that disrupt endocrine function pose an environmental health concern because of their ability to interfere with normal hormone function in human and wildlife populations. The endocrine system regulates biological processes throughout the body and is sensitive to small changes in hormone concentrations. Endocrine-disruptor research has focused primarily on chemicals that affect three hormone pathways that play important roles in reproduction and development - the estrogen, androgen, and thyroid hormone pathways. Some of this research has identified dose-response relationships that have nonmonotonic curves. Nonmonotonic dose-response curves (NMDRs) are of concern because they do not follow the usual assumption made in toxicology that as dose decreases the response also decreases. The existence of NMDRs has been a controversial topic for decades, and there has been considerable debate about their implications for how chemicals are tested and for how risks from such chemicals are assessed. Toxicity tests are designed to identify hazards and to characterize dose-response relationships, so tests are aimed at finding a (high) dose that elicits a response, and dose-response is explored by testing lower doses spaced to identify statistically a no- or lowest-observed-adverse-effect level. The concern for NMDRs is that such studies, as currently designed, might not detect the inflection of the dose-response curve if only a few doses are tested or if the change in inflection occurs below the range of doses tested. Another concern is that some NMDRs are found for biological effects that are not usually evaluated in toxicity tests. If current testing strategies are inadequate to account for NMDRs, changes to risk assessment practices might be necessary. To help address these issues, the U.S. Environmental Protection Agency (EPA) developed a draft State-of-the-Science Evaluation: Nonmonotonic Dose Responses as they Apply to Estrogen, Androgen, and Thyroid Pathways and EPA Testing and Assessment Procedures. EPA asked the National Research Council to conduct an independent review of this evaluation to ensure that it is scientifically sound and of high quality. Review of Environmental Protection Agency's State-of-the-Science Evaluation of Nonmonotonic Dose-Response as they Apply to Endocrine Disrupters evaluates whether EPA's evaluation presents a scientifically sound and high-quality analysis of the literature on NMDRs. This report reviews how well the EPA evaluation described how the assessment was performed, whether consistent methods and criteria were applied in the analysis of different evidence streams, and whether appropriate methods were applied to evaluating the evidence. The report makes recommendations to improve EPA's process and strengthen the evaluation.
Download or read book Endocrine Disruptors and Pharmaceuticals in Drinking Water written by Peter Weyer and published by American Water Works Association. This book was released on 2001 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the potential implications of endocrine disrupting compounds (EDCs) and pharmaceutically active compounds (PhACs) for drinking water and wastewater utilities. Based on an April 2000 workshop held in Chicago, the report overviews various perspectives on identifying and measuring compounds of interest, possible public health impacts, water treatment options, and risk perception and communication issues. The resulting research needs are outlined. An appendix provides abstracts of the lectures delivered. No index. c. Book News Inc.
Download or read book Monitoring Water Quality written by Susanne M. Brander and published by Elsevier Inc. Chapters. This book was released on 2013-01-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of Knowledge of Endocrine Disruptors and Pharmaceuticals in Drinking Water written by S. Snyder and published by International Water Assn. This book was released on 2009 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project was to develop a con
Download or read book Special report on environmental endocrine disruption an effects assessment and analysis prepared for the Risk Assessment Forum U S Environmental Protection Agency written by and published by DIANE Publishing. This book was released on 1997 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Personal Care Products and Pharmaceuticals in Wastewater and the Environment written by Frank R. Spellman and published by DEStech Publications, Inc. This book was released on 2014-05-01 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains key chemicals from drugs and cosmetics in water and clarifies their risks Covers endocrine disruptors and other biologically active compounds Reviews EPA testing protocols for steroids and hormones This book surveys current knowledge regarding endocrine disruptors and other hormone-mimicking compounds in the environment as a result of the disposal of cosmetics, drugs, and cleaning agents. The book investigates dozens of biologically active pollutants, describes their physiological effects, and assesses the evidence of their impact on humans and wildlife. Substances treated include phthalates, bisphenol-A, hormones and an array of steroids. Techniques being investigated by the EPA for the detection and analysis of steroids and hormones in water samples are presented. This is a key reference volume for environmental health, risk assessment and water/wastewater technology.
Download or read book Encyclopedia of Aquatic Ecotoxicology written by Jean-Francois Férard and published by Springer. This book was released on 2013-06-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its 104 chapters, this Encyclopedia of aquatic ecotoxicology reveals the diversity of issues, problems and challenges that have faced, and are facing today, receiving environments. It also indicates ways by which tools, strategies and future investigations can contribute to correct, minimize, solve and prevent water quality degradation. Structured homogeneously, the chapters convey salient information on historical background, features, characteristics, uses and/or applications of treated topics, often complemented by illustrations and case studies, as well as by conclusions and prospects. This work is most suitable for teaching purposes. Academics, for example, could literally deliver comprehensive lectures to students simply based on chapter outlines and contents. Meet the Authors of the Encyclopedia! Check out 'Meet the Authors' under ADDITIONAL INFORMATION (Right menu).
Download or read book Investigations of Endocrine Disruption in Aquatic Systems Associated with the National Water Quality Assessment NAWQA Program written by and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monitoring Water Quality written by Satinder Ahuja and published by Newnes. This book was released on 2013-01-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monitoring Water Quality is a practical assessment of one of the most pressing growth and sustainability issues in the developed and developing worlds: water quality. Over the last 10 years, improved laboratory techniques have led to the discovery of microbial and viral contaminants, pharmaceuticals, and endocrine disruptors in our fresh water supplies that were not monitored previously. This book offers in-depth coverage of water quality issues (natural and human-related), monitoring of contaminants, and remediation of water contamination. In particular, readers will learn about arsenic removal techniques, real-time monitoring, and risk assessment. Monitoring Water Quality is a vital text for students and professionals in environmental science, civil engineering, chemistry — anyone concerned with issues of water analysis and sustainability assessment. Covers in depth the scope of sustainable water problems on a worldwide scale Provides a rich source of sophisticated methods for analyzing water to assure its safety Describes the monitoring of contaminants, including pharmaceutical and endocrine disruptors Helps to quickly identify the sources and fates of contaminants and sources of pollutants and their loading
Download or read book Water Reuse written by National Research Council and published by National Academies Press. This book was released on 2012-07-17 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding water reuse-the use of treated wastewater for beneficial purposes including irrigation, industrial uses, and drinking water augmentation-could significantly increase the nation's total available water resources. Water Reuse presents a portfolio of treatment options available to mitigate water quality issues in reclaimed water along with new analysis suggesting that the risk of exposure to certain microbial and chemical contaminants from drinking reclaimed water does not appear to be any higher than the risk experienced in at least some current drinking water treatment systems, and may be orders of magnitude lower. This report recommends adjustments to the federal regulatory framework that could enhance public health protection for both planned and unplanned (or de facto) reuse and increase public confidence in water reuse.
Download or read book A Preliminary Survey of Pharmaceuticals and Endocrine Disrupting Compounds in Treated Municipal Wastewaters and Receiving Rivers of Alberta written by A. J. Sosiak and published by . This book was released on 2005 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
