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Investigations Of Endocrine Disruption In Aquatic Systems Associated With The National Water Quality Assessment Nawqa Program
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Book Synopsis Investigations of Endocrine Disruption in Aquatic Systems Associated with the National Water Quality Assessment (NAWQA) Program by :
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:
Book Synopsis Investigations of Endocrine Disruption in Aquatic Systems Associated with the National Water Quality Assessment (NAWQA) Program by :
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 Fact Sheet written by and published by . This book was released on 1998 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-resources Investigations Report by :
Download or read book Water-resources Investigations Report written by and published by . This book was released on 2001 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Streams and Aquatic Organisms in the Vicinity of Birmingham, Alabama for the Presence and Biological Activity of Endocrine-disrupting Chemicals by : Bryan S. Arwood
Download or read book Assessment of Streams and Aquatic Organisms in the Vicinity of Birmingham, Alabama for the Presence and Biological Activity of Endocrine-disrupting Chemicals written by Bryan S. Arwood and published by . This book was released on 2015 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater ecosystems play a central role in the environment. Through various processes such as nutrient recycling, groundwater recharging, and the attenuation of many pollutants these biological systems help to maintain environmental health. Unfortunately, many recent studies have identified emerging threats to these special environments and the life they sustain. One source of mounting concern is a group of compounds that interact with the endocrine systems of humans and wildlife. Known as endocrine disrupting chemicals (EDCs), these natural and synthetic chemicals may mimic or interfere with the action of natural hormones--thus disrupting the endocrine system. Multiple studies have reported negative effects associated with EDCs on both the health of humans and wildlife; however more information is needed on the reproductive effects that EDCs may pose to wildlife, in particular fish inhabiting these freshwater ecosystems. Fish serve as a useful indicator of the health of an aquatic ecosystem. To this end, the scope of the current investigation provides an integrated approach in assessing the streams and aquatic organisms in the vicinity of Birmingham, Alabama for the presence and biological activity of EDCs. It follows a preliminary study conducted at several sites along the Cahaba River in which a yeast estrogen screen (YES) detected sufficient estrogenicity in water samples to imply the possible feminization of fish. Repeated samples were collected between 2012 and 2013 providing an assessment to the extent of seasonal and annual variation in estrogenic activity. Using the same YES assay as employed previously, it was determined that water samples collected at several wastewater treatment plant (WWTPs) outfalls contained estrogenic components in concentrations sufficient to cause endocrine disruption in aquatic organisms. Water samples were further analyzed using tandem liquid chromatograph/mass spectrometry and the predominant estrogenic components identified. At WWTPs where habitats were suitable, specimens of largescale stoneroller ( Campostoma oligolepis ) were collected and biomarkers of endocrine disruption evaluated. Such biomarkers included the presence of intersex, reduced gonad size in males and/or females, and reduced secondary sex characteristics within males. In each study described within this dissertation, chemical and biological evidence suggests that environmental estrogens were present at low-level concentrations during the sampling window represented here. Environmental estrogens detected in water samples from the WWTPs investigated illustrated non-significant seasonal influence of environmental concentration. Neither LC/MS nor the YES assay detected significant estrogen loading into receiving bodies of water via wastewater effluent. Additionally, biomarkers for endocrine disruption evaluated within C. oligolepis failed to detect significant differences in either histology or morphology between WWTP present and WWTP absent sites. We conclude that the WWTPs assessed in this study are not currently contributing environmental estrogens to the receiving waters in concentrations sufficient to produce discernible effects upon the fish populations within Jefferson County, Alabama; this is primarily due to their presence at low-level concentrations and intermittent persistence within receiving bodies of water.
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1999 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Water-Quality Assessment Program--upper Illinois River Basin by : Michael J. Friedel
Download or read book National Water-Quality Assessment Program--upper Illinois River Basin written by Michael J. Friedel and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Dept. of the Interior and Related Agencies Publisher : ISBN 13 : Total Pages :2398 pages Book Rating :4.:/5 (319 download)
Book Synopsis Department of the Interior and Related Agencies Appropriations for 2005 by : United States. Congress. House. Committee on Appropriations. Subcommittee on Dept. of the Interior and Related Agencies
Download or read book Department of the Interior and Related Agencies Appropriations for 2005 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Dept. of the Interior and Related Agencies and published by . This book was released on 2004 with total page 2398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies Publisher : ISBN 13 : Total Pages :2396 pages Book Rating :4.3/5 ( download)
Book Synopsis Department of the Interior and Related Agencies Appropriations for 2005 by : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies
Download or read book Department of the Interior and Related Agencies Appropriations for 2005 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 2004 with total page 2396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Draft North Sonoma County Agricultural Reuse Project Environmental Impact Report/environmental Impact Statement by :
Download or read book Draft North Sonoma County Agricultural Reuse Project Environmental Impact Report/environmental Impact Statement written by and published by . This book was released on 2007 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 108-2 Hearings: Department of The Interior and Related Agencies Appropriations for 2005, Part 2, 2004, * by :
Download or read book 108-2 Hearings: Department of The Interior and Related Agencies Appropriations for 2005, Part 2, 2004, * written by and published by . This book was released on 2004 with total page 2492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Setting and Effects on Water Quality in the Great and Little Miami River Basins, Ohio and Indiana by :
Download or read book Environmental Setting and Effects on Water Quality in the Great and Little Miami River Basins, Ohio and Indiana written by and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deschutes and Ochoco National Forests (N.F.) and Crooked River National Grassland, Invasive Plant Treatments, Deschutes, Jefferson, Crook, Wheeler, and Grant Counties by :
Download or read book Deschutes and Ochoco National Forests (N.F.) and Crooked River National Grassland, Invasive Plant Treatments, Deschutes, Jefferson, Crook, Wheeler, and Grant Counties written by and published by . This book was released on 2007 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 108-1 Hearings: Department of the Interior and Related Agencies Appropriations For 2004, Part 2, 2003, * by :
Download or read book 108-1 Hearings: Department of the Interior and Related Agencies Appropriations For 2004, Part 2, 2003, * written by and published by . This book was released on 2003 with total page 2146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vegetation Treatments Using Herbicides on BLM Lands in Oregon by :
Download or read book Vegetation Treatments Using Herbicides on BLM Lands in Oregon written by and published by . This book was released on 2010 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Overview of Substances Present in Canadian Aquatic Environments Associated with Endocrine Disruption by : Mark Hewitt
Download or read book An Overview of Substances Present in Canadian Aquatic Environments Associated with Endocrine Disruption written by Mark Hewitt and published by . This book was released on 2000 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This paper is intended to provide a general overview of chemicals functioning as endocrine disrupting substances (EDSs) in Canadian aquatic environments. This paper is based on a presentation at the SNR Workshop on Endocrine Disruptors held in Huntsville ON, February 13-18, 2000, and is not intended to be an exhaustive review of all chemicals functioning as EDSs"--Management Perspective.
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies Publisher : ISBN 13 : Total Pages :2166 pages Book Rating :4.F/5 ( download)
Book Synopsis Department of the Interior and Related Agencies Appropriations for 2004: Justification of the budget estimates: U.S. Geological Service by : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies
Download or read book Department of the Interior and Related Agencies Appropriations for 2004: Justification of the budget estimates: U.S. Geological Service written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 2003 with total page 2166 pages. Available in PDF, EPUB and Kindle. Book excerpt: