Download or read book The Role of Water Quality and Chemical Speciation in the Distribution and Toxicity of Copper in the Chehalis River written by Terry Edwin Northstrom and published by . This book was released on 1986 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Speciation and Bioavailability of Copper in the Huron River Ecosystem written by Imar Mansilla-Rivera and published by . This book was released on 2000 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Copper Speciation and Toxicity in a Contaminated Estuary written by Ruth S. Eriksen and published by . This book was released on 2001 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Copper in the Aquatic Environment written by P. A. Spear and published by . This book was released on 1979 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Water Chemistry on the Bioavailability and Toxicity of Waterborne Cadmium Copper Nickel Lead and Zinc to Freshwater Organisms written by Joseph S. Meyer and published by Society of Environmental Toxicology & Chemistry. This book was released on 2007 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geochemical Speciation as a Predictor of Copper Toxicity in Low Alkalinity Soft Waters of East Texas written by Meredith P. Sanders and published by . This book was released on 2009 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biotic ligand model (BLM) provides a way to produce site-specific ambient water quality criteria for metals through an equilibrium geochemical modeling framework. Since copper is now the third most used metal in the world, more information is needed to understand its speciation, and its toxicity to organisms in soft water with neutral to low pH and low alkalinity. Waters from eight East Texas rivers and streams which exhibited these characteristics was used in this study. Analysis confirmed the pH of the samples ranging from 3.75 - 8.65 with alkalinity ranging from 22 -- 56 mg CaCO3 L−1 and total hardness ranging from 40--78 mg CaCO3 L−1. Concentrations of K+, Na+, Ca2+, Cl− and Cu2+ were measured in the samples with ion selective electrodes. The water-quality parameters found in each of the natural waters were used in the chemical speciation program, Visual MINTEQ, to evaluate how copper complexes and in what concentrations in these waters. The two copper complexes in the highest concentrations were Cu2+ and CuCO3. Titrations were preformed on the natural waters to see how much CuSO4 was needed to reach three concentrations of ionic copper (1.57x10−8 , 1.57x10−7 and 1.57x10−6 MCu2+) and a statistical difference was found between what was measured and what Visual MINTEQ reported at the two lower concentrations. EC50 values of the toxicity tests in pH 5 ranged from 0.54--2.57 u̳g L−1 Cu2+, pH 6 ranged from 3.73--6.6 u̳g L−1 Cu2 and pH 7 ranged from 6.21--17.53 u̳g L−1 Cu2+. At pH 5 and 6 an over prediction occurred by the BLM and at pH 7 an under prediction occurred.

Download or read book Ambient Water Quality Criteria for Copper 1984 written by and published by . This book was released on 1985 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Copper in Drinking Water written by National Research Council and published by National Academies Press. This book was released on 2000-05-12 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The safety of the nation's drinking water must be maintained to ensure the health of the public. The U.S. Environmental Protection Agency (EPA) is responsible for regulating the levels of substances in the drinking water supply. Copper can leach into drinking water from the pipes in the distribution system, and the allowable levels are regulated by the EPA. The regulation of copper, however, is complicated by the fact that it is both necessary to the normal functioning of the body and toxic to the body at too high a level. The National Research Council was requested to form a committee to review the scientific validity of the EPA's maximum contaminant level goal for copper in drinking water. Copper in Drinking Water outlines the findings of the committee's review. The book provides a review of the toxicity of copper as well as a discussion of the essential nature of this metal. The risks posed by both short-term and long-term exposure to copper are characterized, and the implications for public health are discussed. This book is a valuable reference for individuals involved in the regulation of water supplies and individuals interested in issues surrounding this metal.

Download or read book The Toxicity of Copper to Rainbow and Cutthroat Trouts Under Different Conditions of Alkalinity PH and Hardness written by Charles Chakoumakos and published by . This book was released on 1977 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Validity of Laboratory Tests for Predicting Copper Toxicity in Streams written by Jack R. Geckler and published by . This book was released on 1976 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement and Manipulation of Copper Speciation and Toxicity in Urban Runoff Acid Mine Drainage and Contaminated Discharged Groundwater written by James Francis Hauri and published by . This book was released on 2001 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicity of Copper Zinc and Their Chemical Forms to Coho Salmon and Steelhead Trout in the Chehalis River Washington written by Wallace Davis and published by . This book was released on 1983 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Copper Hazards to Fish Wildlife and Invertebrates written by Ronald Eisler and published by . This book was released on 1998 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical, concentrations, lethal, carcinogenicity, muagenicity.

Download or read book Concentration and Speciation of Copper in Waters Near the Diablo Canyon and San Onofre Nuclear Power Stations written by Florence Louise Montana Harrison and published by . This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1978 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicological Profile for Copper written by and published by . This book was released on 2004 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicity of Copper to Daphnids in Reconstituted and Natural Waters written by Robert W. Winner and published by . This book was released on 1976 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: