Download or read book Synopsis of Research Conducted Under the 1994 95 Northern Contaminants Program written by J. L. Murray and published by . This book was released on 1995 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of the results of research and monitoring studies on contaminants in northern Canada, conducted under the auspices of the Green Plan's Arctic Environmental Strategy/Northern Contaminants Program. The studies cover sources and transport of contaminants; contamination of marine, freshwater, and terrestrial ecosystems; human exposure through diet and related health implications; communication and education of northern residents; and international initiatives addressing the global aspect of the problem. For each study, information is given on project leader and team, objective, rationale, description of study, activities in each of its operating years, and results.
Download or read book Polar Bears written by IUCN/SSC Polar Bear Specialist Group. Working Meeting Oslo, Norway) and published by IUCN. This book was released on 1998 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long term Environmental Change in Arctic and Antarctic Lakes written by Reinhard Pienitz and published by Springer Science & Business Media. This book was released on 2007-11-08 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns about the effects of global climate change have focused attention on the vulnerability of circumpolar regions. This book offers a synthesis of the spectrum of techniques available for generating long-term environmental records from circumpolar lakes.
Download or read book Mad Cows and Mother s Milk Second Edition written by William Leiss and published by McGill-Queen's Press - MQUP. This book was released on 2004-11-25 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communicating the nature and consequences of environmental and health risks is still one of the most problematic areas of public policy in Western democracies. "Mad Cows and Mother's Milk" outlines the crucial role of risk management in dealing with public controversies and analyses risk communication practice and malpractice to provide a set of lessons for risk managers and communicators. This second edition adds new case studies on mad cow disease in North America, climate change, and genetics technologies. The first of the new case studies brings the story of the Bovine Spongiform Encephalopathy (BSE) outbreak in the United Kingdom in the 1980s up-to-date. Mad cow disease is still being discovered in UK herds and cases of mad cow disease have been found in twenty countries across the European continent and as far away as Japan with devastating consequences for the food industry. BSE has now been discovered on the North American continent in two cows born in Canada. The original cause of these two new cases is almost certainly importation of infected cattle, cattle feed, or both from Britain. Canadian government regulators and those in the cattle industry have failed to correctly assess the risks of the disease in the Canadian herd, take the precautionary measures needed to prevent the spread of disease, and communicate risks and precautionary measures to the public. The second new study deals with global warming. Not only is every aspect of this risk debate both contentious and difficult for the public to understand but the potential consequences of the risks extend all the way to global catastrophe for human civilization. A new chapter outlines the many dimensions of risk debate in the context of the need for effective and sustained dialogue by an informed public. The last new case study provides an introduction to genomic science, which is placed in the context of both the health benefits expected from genetic manipulation and some of the risk factors associated with it. One example is gene therapy, which can be used to eliminate inherited genetic diseases (i.e. cystic fibrosis), enhance human traits (i.e. athletic performance), and perhaps double life-spans. Gene technologies are relevant to some of the most fundamental human values. This new chapter suggests that we must think about the range of new risks introduced by these technologies as well as the potential benefits - and that we should do this collective thinking soon, since, given the furious pace of genomics discoveries, the possibilities will be with us sooner than we imagine. All of the case studies emphasize the need for effective communication about risks to allow effective dialogue by informed publics on health and environmental risks.
Download or read book Persistent Organic Pollutants in the Great Lakes written by Ronald A. Hites and published by Springer Science & Business Media. This book was released on 2006-02-09 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollution threatens the Laurentian Great Lakes and is a serious problem. This book examines what is known about the major classes of persistent toxic organic pollutants. Agricultural runoff, urban waste, industrial discharge, landfill leachate, and atmospheric deposition, are all to blame. Contamination of the various ecosystems is reviewed, and what is known about the effects of this pollution. This volume provides an invaluable resource for those in environmental research, measurements, and decision making concerning the Great Lakes.
Download or read book Assessment of the Sources Atmospheric Fluxes Environmental Cycling Effects and Sinks of Persistent Organic Pollutants POPs written by and published by Nordic Council of Ministers. This book was released on 2000 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Contaminants written by Jules M. Blais and published by Springer. This book was released on 2015-03-27 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: The human footprint on the global environment now touches every corner of the world. This book explores the myriad ways that environmental archives can be used to study the distribution and long-term trajectories of chemical contaminants. The volume first focuses on reviews that examine the integrity of the historic record, including factors related to hydrology, post-depositional diffusion, and mixing processes. This is followed by a series of chapters dealing with the diverse archives and methodologies available for long-term studies of environmental pollution, such as the use of sediments, ice cores, sclerochronology, and museum specimens.
Download or read book Highlights of the Canadian Arctic Contaminants Assessment Report written by Siu-Ling Han and published by . This book was released on 1997 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mad Cows and Mother s Milk written by Douglas Alan Powell and published by McGill-Queen's Press - MQUP. This book was released on 1997 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: When toxins are suspected to be the cause of illness or death, governments, scientists and professional health associations are faced with a dilemma: at what point does sufficient evidence justify changes in policy or the issuance of public warnings which might result in undue public fear? Powell (food science, U. of Guelph) and Leiss (environmental policy, Queen's U., Canada) discuss mad cow's disease, silicone in breast implants, E.coli in hamburger, and dioxins in the environment, in terms of available scientific research and the question of assessing actual risk. Paper edition (unseen), $19.95. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Estimating Gulf of Maine Zooplankton Distributions Using Multiple Frequency Acoustic Video and Environmental Data written by Joseph David Warren and published by . This book was released on 2001 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis develops methods useful for estimating zooplankton distributions in the field by combining acoustic scattering models and an integrated set of field data. The accuracy of existing scattering models for fluid-like and elastic-shelled animals is determined by analysis of scattering data from individual animals in a laboratory tank. Results indicate that simple two-ray scattering models are accurate and allow predictions of size or orientation of an animal to be made for certain animal orientations. A scattering model for gas-bearing zooplankton is compared with in situ multiple frequency acoustic measurements from siphonophores. Estimates of the numerical density of these animals are made using echo integration data from a scientific echo-sounder. Multiple frequency acoustic scattering data from a survey of an internal wave are analyzed to determine the contributions from biological and physical sources. Net tow data provide information about biological scatterers while temperature and salinity profiles are used with a theoretical scattering model to predict contributions from physical sources. Results indicate that scattering from physical sources is comparable to that from biological sources in certain regions and that scattering spectra may be used to distinguish these sources. Improved estimates of biomass from acoustic scattering data were made by accounting for the scattering contributions from physical sources. This is the first work to quantify the scattering contributions from biological and physical sources of scattering in a field study.
Download or read book Chemical Contaminants in Canadian Aquatic Ecosystems written by D. M. Whittle and published by Canadian Government Publishing. This book was released on 1998 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report focuses on those chemicals that persist in the Canadian environment and that are accumulated by aquatic organisms. It summarizes scientific information collected previously, with emphasis on Canadian research findings published in the last decade. The first part of the report introduces the general features of aquatic ecosystems and provides basic information on the fate and effects of chemical contaminants. The second part reviews contaminant related issues for the following geographic areas: Atlantic marine ecosystems including the St. Lawrence, Bay of Fundy, and general north-west Atlantic; freshwater ecosystems including the Great Lakes and inland waters; the Arctic marine ecosystem; and Pacific aquatic ecosystems including the British Columbia coastal ecosystem, the open coast, and some of the major rivers. All chapters discuss the major contaminant issues, important oceanographic or limnological features, biological resources, and sources of contaminants as well as contaminant trends, distribution, and effects. Current and emerging chemical contaminant issues and associated research topics are summarized at the end of each chapter. The third part is an overall assessment of current knowledge of chemical contaminants and their effects on fish and fish habitat, and identifies major current and emerging contaminant issues confronting Canada's fish and fish habitat.
Download or read book Synopsis of Research Conducted Under the 1991 92 Northern Contaminants Program written by J. L. MURRAY and published by . This book was released on 1992 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Health Perspectives written by and published by . This book was released on 2004 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Contaminants in Fish written by Derek C. G. Muir and published by The Study. This book was released on 1996 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarises and interprets the analytical results for various organic chlorine contaminants in fish collected from northern Alberta river systems and also compares the observed organochlorine levels with the regulatory limits set by Health Canada. Major organochlorine groups detected were polychlorinated biphenyls, DDT- and chlordane-related compounds, toxaphene, and chlorinated phenolics. Background information is included on the properties, uses, toxicity, sources, environmental fate and transport, and bioaccumulation of the contaminants studied. Results are given for such fish species as mountain whitefish, burbot, northern pike, and longnose sucker, and for concentrations observed at locations downstream and upstream of known sources of contaminants.
Download or read book Issues in the North written by Jill Elizabeth Oakes and published by . This book was released on 1997 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Issues in the North written by Roderick R. Riewe and published by Canadian Circumpolar Institute. This book was released on 1997 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cultural and economic benefits of Aboriginal resource management; Effects of contaminants on Aboriginal lifestyles; Aboriginal self-government' Decolonization; Implications of restructuring Aboriginal health and services; and, contemporary perspectives on identity. Papers by: Harold Welch; Susan Cosens; Candace Turcotte and Norm Kenkel; David Punter; Kathi Avery Kinew; Rob Huebert; Derek Muir; Chris Egan; Ann Charter; Paul Chartrand; Phil Fontaine; Pete Hudson; Marian Campbell; Jill Oakes and Wanda Wuttunee; Brian Malchy and Murray Enns; Karen McSwain; Olva Odlum; Nadja-Lynn Schultz, Marie Tarrant; Sharon Blady; Virginia Petch; and Florence Bruyere.
Download or read book Dioxin and Related Compounds written by Mehran Alaee and published by Springer. This book was released on 2016-06-13 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a tribute to Professor Otto Hutzinger, the founding editor of The Handbook of Environmental Chemistry, in recognition of his pioneering work and contribution to our understanding of the sources, fate, exposure and effects of persistent organic pollutants. It consists of fourteen chapters written by individuals who have been inspired by his work and have followed in his footsteps by refining our knowledge of this field and opening new research directions. In Professor Hutzinger’s tradition of passing on valuable information to others, the authors present recent advances in areas such as inventories, remediation, and analytical determinations. Levels and trends in abiotic environments, biota, and human exposure via food, as well as the risks to the environment and humans from polychlorinated dibenzo dioxins, furans, and PCBs are also discussed. Other chapters deal with the relevant topics of DDT and its metabolites along with halogenated and phosphorus flame retardants.
