Download or read book Enhanced Biotransformation and Biodegradation of Polychlorinated Biphenyls in the Presence of Aminopolysaccharides written by K. Fujisaki and published by . This book was released on 1988 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fate analysis predictions of agricultural or industrial source toxicants in aquatic or marine environments can be affected by the presence or absence of adapted (preexposed) microbial populations and amenable substrates for cometabolic or cooxidative biotransformation. Polychlorinated biphenyls (PCBs) were evaluated in controlled laboratory microcosm systems in the presence of the aminopolysaccharide polymer chitin. Toxicants evaluated included the commercial Aroclors 1232, 1248, and 1254. Crosscouplings of each PCB mixture and polymer were noted, resulting in an optimization of epiphytic microbial metabolic activity. Significant primary degradation was noted for the lesser chlorinated biphenyls, that is, Aroclor 1232. Gas chromatography analysis of Aroclor 1248 and 1254 showed several tetra and penta isomers remaining. However, when polymer epiphytic populations were predominantly adapted microbial strains, that is, a Pseudomonas species and an Acinetobacter species, additional refractile isomers were metabolized. A comparison of kinetic rate constants based on biotransformation of each commercial mixture showed significant changes in halflife as correlated to isomer mixture, available polymer, and microbial inoculation.
Download or read book Aquatic Toxicology and Hazard Assessment written by William J. Adams and published by ASTM International. This book was released on 1988 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicological Profile for Polychlorinated Biphenyls written by and published by . This book was released on 1993 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicological Profile for Polychlorinated Biphenyls PCBs written by and published by . This book was released on 1998 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioremediation Field Experience written by Paul E. Flathman and published by CRC Press. This book was released on 1993-12-21 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioremediation focuses on the application of practical, state-of-the-art technology used for full-scale site remediation over a wide range of environmental settings. The book includes an up-to-date overview of the environmental regulations critical to the success of biological treatment in the field as well as the market opportunities presented for implementing bioremediation based on those regulations. Crucial factors to consider prior to selecting bioremediation for site remediation are also discussed.
Download or read book The ortho Side of PCBs written by Larry G. Hansen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: PCBs have captured the attention of scientists, journalists and the public for three decades, but during most of that time attention was focused on a small number of the 209 possible chlorobiphenyls. Recent work has implicated many of the forgotten and/or unstudied congeners as neuro-endocrine active and potential developmental toxicants. This interest has created a need for information regarding the `non-dioxin-like' PCBs. The ortho Side of PCBs: Occurrence and Disposition integrates historical information, analytical interpretations, and global concepts with recent comprehensive residue reports and public health concerns. This condensed source of extensive information provides detailed comparisons of comprehensive data in a consistent format. The data will improve the accuracy of concepts regarding the occurrence and disposition of the 60-100 (rather than 6-10) most important congeners. Actual PCB burdens are shown to deviate from average steady-state profiles through sporadic exposures to unique mixtures characteristic of individual dietary sources. The task of accurate hazard characterization and risk assessment can be overwhelming, especially when sporadic changes are considered. Models and relationships are suggested to facilitate the efficient categorization and evaluation of the more important congeners.
Download or read book ASTM Special Technical Publication written by and published by . This book was released on 1988 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Toxicology and Risk Assessment written by Joseph W. Gorsuch and published by ASTM International. This book was released on 1993 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Toxicology written by Edward A. Laws and published by Springer Science & Business Media. This book was released on 2012-12-12 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Toxicology provides a detailed, comprehensive introduction to this key area of sustainability and public health research. The broad coverage includes sections on ecological risk assessment, monitoring, mechanisms, fate and transport, prevention, and correctives, as well as treatment of the health effects of solar radiation and toxicology in the ocean. The 23 state-of-the-art chapters provide a multi-disciplinary perspective on this vital area, which encompasses environmental science, biology, chemistry, and public health.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Enzyme Biotechnology written by Jeffrey W. Kelly and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Industry-University Cooperative Chemistry Program (IUCCP) has sponsored eight previous international symposia covering a range of topics of interest to industrial and academic chemists. The ninth IUCCP Symposium, held March 18-21, 1991 at Texas A&M University was the second in a two part series focusing on Biotechnology. The title for this Symposium "Applications of Enzyme Biotechnology" was by design a rather all encompassing title, similar in some respects to the discipline. Biotechnology refers to the application of biochemistry for the development of a commercial product. Persons employed in or interested in biotechnology may be chemists, molecular biologists, biophysicists, or physicians. The breadth of biotech research projects requires close collaboration between scientists of a variety of backgrounds, prejudices, and interests. Biotechnology is a comparatively new discipline closely tied to new developments in the fields of chemistry, biochemistry, molecular biology and medicine. The primary function of Texas A&M University is to educate students who will be appropriately trained to carry out the mission of biotechnology. The IUCCP Symposium serves as an important forum for fostering closer ties between academia and industry and exchanging ideas so important to this evolving area.
Download or read book Sea Grant Abstracts written by and published by . This book was released on 1988 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Physical Chemical Properties and Environmental Fate for Organic Chemicals written by Donald Mackay and published by CRC Press. This book was released on 2006-03-14 with total page 4196 pages. Available in PDF, EPUB and Kindle. Book excerpt: CHOICE Award WinnerTransport and transformation processes are key for determining how humans and other organisms are exposed to chemicals. These processes are largely controlled by the chemicals' physical-chemical properties. This new edition of the Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals is a comprehen
Download or read book International Conference on Physiochemical and Biological Detoxification of Hazardous Wastes written by Yeun C. Wu and published by . This book was released on 1989 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by National Sea Grant College Program (U.S.) and published by . This book was released on 1989 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceans 87 Proceedings written by and published by . This book was released on 1987 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1987 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
