Download or read book Mitochondrial Bioassay for Toxic Substances in Water written by and published by . This book was released on 1991 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Testing of Chemicals and Environmental Water Samples for Toxicity with Mitochondria based Bioassays written by Harry Wood Read and published by . This book was released on 1990 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of Mammalian Mitochondrial Electron Transport Particles to Detect Toxic Substances in Fresh Water and Evaluate Chemical Toxicity written by Lynda Knobeloch and published by . This book was released on 1988 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An In Vitro Submitochondrial Bioassay for Predicting Acute Toxicity in Fish written by GA. Blondin and published by . This book was released on 1988 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new, rapid, and reliable bioassay for monitoring the acute toxicity of aquatic samples has been developed. The method is based on metabolic changes in preparations made from isolated animal mitochondria which affect the ratio of reduced to oxidized nicotinamide adenine dinucleotide (NADH/NAD) as measured in a spectrophotometer. Stable submitochondrial electron-transfer particles (SMP), made by sonic disruption of the cristae membranes of bovine heart mitochondria, afford the most practical biological test material because these vesicles can be stored indefinitely prior to use as frozen or freeze-dried preparations with full retention of biological activity. Under appropriate conditions, SMP can be programed to reduce exogenous NAD + by coupled reverse electron transfer (RET) or to oxidize NADH by the conventional electron transfer pathway (ETR). Exposure to toxicants inhibits one or both redox activities by an amount proportional to the toxicant concentration. Hence, bioassay procedures can be based on RET and ETR tests which are often complementary. Reliable data can be obtained in 2 to 18 min without interference caused by "hard water" conditions. The toxicities of 64 industrial chemicals, inorganics, and pesticides to SMP correlate closely with the results from tests with the fathead minnow ( r2 = 83%). The correlation was substantially poorer between fish toxicity and available data for the same toxicants from another short-term bioassay utilizing the Microtox procedure. In the new bioassay, the biological materials of the SMP test are handled like a chemical reagent. The test requires only small sample volumes, has good reproducibility, and promises to be relatively inexpensive, rapid, and simple. Bioassay variants and potential enhancements of the SMP test system are discussed.

Download or read book Microscale Testing in Aquatic Toxicology written by Peter G. Wells and published by CRC Press. This book was released on 2018-05-04 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioassays are among the ecotoxicologist's most effective weapons in the evaluation of water quality and the assessment of ecological impacts of effluents, chemicals, discharges, and emissions on the aquatic environment. Information on these assessment aids is needed throughout the international scientific and environmental management community. This comprehensive reference provides an excellent overview of the small-scale aquatic bioassay techniques and applications currently in use around the world. This special volume is the result of several years of collaboration between Environment Canada and Fisheries and Oceans Canada. Internationally recognized research scientists at many institutions have contributed to this state-of-the-art examination of the exciting, environmentally important field of microscale testing in aquatic toxicology. Microscale Testing in Aquatic Toxicology contains over forty chapters covering relevant principles, new techniques and recent advancements, and applications in scientific research, environmental management, academia, and the private sector.

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 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 1991 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of Federal Domestic Assistance written by and published by . This book was released on 1988 with total page 1694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identifies and describes specific government assistance opportunities such as loans, grants, counseling, and procurement contracts available under many agencies and programs.

Download or read book Aquatic Toxicology and Environmental Fate written by Glenn W. Suter and published by ASTM International. This book was released on 1989 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Application of In situ Monitoring and Bioassay Technologies for Assessing Groundwater Contaminaiton written by Karl E. Gustavson and published by . This book was released on 2001 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Drinking Water and Health written by Assembly of Life Sciences (U.S.). Safe Drinking Water Committee and published by . This book was released on 1977 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 1652 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 2000-04-12 with total page 161 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 Reports and Publications Resulting from Research Sponsored by the Wisconsin Water Resources Center 1966 1992 written by University of Wisconsin--Madison. Water Resources Center and published by . This book was released on 1993 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electrochemical Biosensors written by Serge Cosnier and published by CRC Press. This book was released on 2015-01-26 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since four decades, rapid detection and monitoring in clinical and food diagnostics and in environmental and biodefense have paved the way for the elaboration of electrochemical biosensors. Thanks to their adaptability, ease of use in relatively complex samples, and their portability, electrochemical biosensors now are one of the mainstays of analy

Download or read book Current Advances in Fern Research written by Helena Fernández and published by Springer. This book was released on 2018-03-24 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferns, collectively, represent an ancient species of vascular plant which has a direct connection to the beginning of life on Earth. Today they are valued for their ornamental appeal, environmental benefit or as sources of health benefiting metabolites. Current pteridology, the study of fern, encompasses a wide range of research activities including, but not limited to, plant physiology, stress tolerance, genetics and genomics. The goal of this book is to compile the most relevant research done with ferns during the last decade. It is organized into four parts: I, Biology and Biotechnology; II, Evolution and Conservation; III, Metabolism and Genetic Resources, and IV, Environment. Each section reveals the utilization of ferns as a tool to explore challenges unique to plant development and adaptation. This project represents our collective effort to raise the awareness of ferns as a model system to study higher plant functions. Among the distinctive features of our proposed book are: (i) a wide range of topics with contributing researchers from all around the world, and (ii) recent advances of theoretic and applied knowledge with implications to crop species of economic value.