Download or read book Identification of Toxic Substances in the Upper Illinois River written by Richard E. Sparks and published by . This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification of Toxic Substances in the Upper Illinois River written by Richard E. Sparks and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification of Toxic Substances in the Upper Illinois River written by Richard E. Sparks and published by Forgotten Books. This book was released on 2016-09-28 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Identification of Toxic Substances in the Upper Illinois River: Final Report During the course of this study, several species of fingernail clams, includ ing M. Transversum, reappeared in the Chicago area waterways and in the Illinois River at Peoria and Havana. There are at least four possible explanations for this surprising reappearance of clams in the same general areas where the porewaters tested toxic. First, we found that clams recolonizing the upper Illinois are more resistant to ammonia than the clams from the lower Illinois, where the organisms were obtained for all of the early bioassays. Second, our previous research demon strated that the surface layers of sediment in some areas are less toxic than layers a few centimeters deeper. Toxicity may have been overestimated in tests where surface and deep layers of sediment were mixed prior to testing. Third, toxic episodes may be brief and infrequent, allowing organisms to colonize in between episodes. Fourth, the distribution of toxicity in sediments may be extremely patchy, so that healthy organisms are found adjacent to barren areas. If the latter two hypotheses prove to be true, acute toxicity in the Illinois River has changed recently from a widespread problem to a more localized or episodic problem. Reduction of toxicity in surface sediments may reflect recent reductions in ammonia loading from sewage treatment plants in the Chicago area, although it is not clear whether the sources of ammonia in the porewaters are effluents, the deeper layers of sediments, or both. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Identification of the Sediment associated Contaminants in the Illinois River Complex Using Toxicity Identification Evaluation TIE written by W. Tyler Mehler and published by . This book was released on 2012 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The difficulty of assessing risk of sediment-associated contaminant mixtures to benthic ecosystems is often attributed to understanding the bioavailable fraction of each contaminant. These issues have led to the development of the toxicity identification evaluation (TIE). Past pore water TIE testing on Illinois River sediments has indicated that ammonia was the primary contaminant. The current study, however, suggests that ammonia is no longer the primary contaminant of concern, but rather non-polar organics, including polycyclic aromatic hydrocarbons, are the primary cause for toxicity in the Illinois River Complex (IRC). The study provides data that could be used in combination with previous work to more accurately characterize the sources and spatial trends of toxicity in Illinois River sediments for future risk assessment and mitigation.

Download or read book Identification of the Sediment associated Contaminants in the Illinois River Complex Using a Toxicity Identification Evaluation TIE written by Wesley Tyler Mehler and published by . This book was released on 2009 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The difficulty of assessing risk of sediment-associated contaminant mixtures to benthic ecosystems is often attributed to understanding the bioavailable fraction of each contaminant. These issues have led to the development of the toxicity identification evaluation (TIE). Past pore water TIE testing on Illinois River sediments has indicated that ammonia was the primary contaminant. The current study, however, suggests that ammonia is no longer the primary contaminant of concern, but rather non-polar organics, including polycyclic aromatic hydrocarbons, are the primary cause for toxicity in the Illinois River Complex (IRC). The study provides data that could be used in combination with previous work to more accurately characterize the sources and spatial trends of toxicity in Illinois River sediments for future risk assessment and mitigation.

Download or read book Upper Mississippi River Illinois Waterway System Navigation Feasibility Study Integrated Feasiblity Report written by and published by . This book was released on 2004 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Illinois River Fingernail Clam Toxicity Study written by and published by . This book was released on 1993 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Restoration of Aquatic Ecosystems written by National Research Council and published by National Academies Press. This book was released on 1992-01-01 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.

Download or read book Risk reduction written by Mervyn Richardson and published by CRC Press. This book was released on 2002-09-11 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerned with the need to reduce chemical risks, this text also covers related biological and physical risks. Risk reduction has an important economic role, not least in developing countries. Many of the contributors are from develping countries and indicate the problems and some of the solutions their countries will need to adopt during their process of reconstruction, development and recovery. The text discusses the decision-making process involving the political, socioeconomic, engineering, and natural sciences so as to develop, analyze and compare regulatory options. It considers how such measured decision making enables the selection of optimal responses to achieve safety from perceived hazards.

Download or read book Surface water quality Assessment of the Upper Illinois River Basin in Illinois Indiana and Wisconsin written by and published by . This book was released on 1998 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality in the Upper Illinois River Basin Illinois Indiana and Wisconsin 1999 2001 written by G. E. Groschen and published by Geological Survey (USGS). This book was released on 2004 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Concentrations and Potential Toxicity of Metals and Ammonia in Peoria Lake Sediments and Pore Waters written by Michael L. Machesky and published by . This book was released on 2004 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water quality Assessment of the Upper Illinois River Basin in Illinois Indiana and Wisconsin written by Paul J. Terrio and published by . This book was released on 1995 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sediment Toxicity in Reach 15 of the Upper Mississippi River written by Denise B. Stoeckel and published by . This book was released on 1997 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chicagoland Underflow Plan McCook Reservoir Special Re evaluation Report written by and published by . This book was released on 1998 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water resources Investigations Report written by and published by . This book was released on 2001 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification of Factors Responsible for Decreased Production of Fish Food Organisms in the Illinois and Mississippi Rivers written by Richard E. Sparks and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: