Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1974 with total page 1242 pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.

Download or read book Biological Methods for the Assessment of Water Quality written by and published by ASTM International. This book was released on 1973 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ASTM Special Technical Publication written by and published by . This book was released on 1973 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by Institute of Environmental Sciences. Technical Meeting and published by . This book was released on 1973 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprised of the proceedings of the institute's annual meeting (called variously Technical or National Meeting)

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1967 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eutrophication Abstracts written by and published by . This book was released on 1974 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eutrophication written by and published by . This book was released on 1974 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Directory of Published Proceedings written by and published by . This book was released on 1973 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eutrophication written by University of Wisconsin--Madison. Eutrophication Information Program and published by . This book was released on 1974 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inorganic Species in Water written by Thomas B. Hoover and published by . This book was released on 1978 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Anthropogenic Compounds written by and published by Springer. This book was released on 1980 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Geochemistry written by J. A. C. Fortescue and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is the policy of the federal Canadian Forestry Service to sponsor research initiatives from the private sector that are judged to be pertinent to its mandate and offer particular promise towards the optimal management of Canadian forest resources. This book is based on such an initiative. It represents the philosophy of the author himself and is in no way constrained by the views of the sponsoring agency. Over the past two decades Dr J. A. C. Fortescue has become well known at a number of research centers throughout the world. He has pioneered the approach to environmental understanding that is comprehensively developed in this text. The limitations of traditional compartmentalized approaches are depre cated and the case is made for a holistic rethinking of basic concepts and princi ples. Landscape Geochemistry is the disciplinary outcome that gives expression to this rethinking. It may be viewed as the minimum scale of conceptual approach necessary in the environmental sciences to solve present-day problems and to exploit future opportunities.

Download or read book Radiation Data and Reports written by and published by . This book was released on 1972 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bioassay Techniques and Environmental Chemistry written by Gary E. Glass and published by Butterworth-Heinemann. This book was released on 1973 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Movement of Hazardous Substances in Soil Pesticides written by Emily D. Copenhaver and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Short Term Bioassays in the Analysis of Complex Environmental Mixtures II written by Michael Waters and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than one hundred short-term bioassays are now available for detecting the toxicity, mutagenicity, and potential carcinogenicity of chemicals. These bioassays were developed and validated with individual compounds, and their principal application was perceived to be in evaluating the health hazard of such materials. However, man is rarely exposed to single chemicals; his exposure to hazardous chemicals is more commonly a multifactorial phenomenon. Although chemical analysis can be used to detect known hazardous compounds, it would be a staggering and expensive task to analyze large numbers of samples for all known or suspected hazardous constituents. Furthermore, the biological activity of a complex mixture cannot be reliably predicted from knowledge of its components. On the other hand, bioassays alone cannot tell us which components of complex mixtures are responsible for the biological activity detected. Thus, cost effectiveness and technical feasibility dictate stepwise and perhaps iterative application -of both chemical and biological methods in evaluating the health effects of complex environmental mixtures. Through the coupling of reliable biological detection systems with methods of chemical fractionation and analysis, it is frequently possible to isolate the individual chemical species that show biological activity. Initially, complex mixtures may be separated and bioassayed in carefully defined chemical fractions. The results of such short-term screening bioassays then may be used td guide the course of further fractionation and to determine the need for more stringent and comprehensive biological testing.

Download or read book Short Term Bioassays in the Analysis of Complex Environmental Mixtures IV written by Michael Waters and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: With this proceedings of the fourth symposium on complex mixtures, we continue to revise and extend our knowledge of genetic methods for the evaluation of chemical mixtures in the environment. The early chapters of this volume are devoted to new bioassay techniques that are directly applicable to the monitoring of environments contaminated with genotoxic chemicals. Microbiological methods have been further refined to meet the special needs of atmospheric monitoring so that very small samples may now be efficiently tested. New in situ methods utilizing green plants actually avoid many of the usual difficulties of sample collection and preparation and offer special advantages in monitoring wastewater, sludges, and hazardous wastes. Insects also are being employed very effectively in the evaluation of gaseous air pollutants in controlled laboratory investigations. Increased emphasis has been placed on a comprehensive assessment of the potential of complex mixtures t9 cause various kinds of genetic damage. New assays for chromosome structural and numerical aberrations in mammalian cells in vitro have been developed and are being applied in laboratory studies. Efforts to link tests for gene mutation and cell transformation in vitro with assays for tumorigenesis in vivo are contributing to the validation of the short-term testing approach. Studies comparing in vitro and in vivo data on a coal conversion by-product, on polycyclic aromatic hydrocarbons, and on mineral fibers are reported in separate papers. Later chapters are devoted to investigations on the fractionation and biological evaluation of specific chemical components within complex mixtures.