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Mercury In The Environment And In Hydroelectric Reservoirs
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Author :Alain Tremblay Publisher :Montréal : Great Whale Public Review Support Office ISBN 13 :9781895931105 Total Pages :169 pages Book Rating :4.9/5 (311 download)
Book Synopsis Mercury in the Environment and in Hydroelectric Reservoirs by : Alain Tremblay
Download or read book Mercury in the Environment and in Hydroelectric Reservoirs written by Alain Tremblay and published by Montréal : Great Whale Public Review Support Office. This book was released on 1993 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mercury in the Biogeochemical Cycle by : Marc Marcotte
Download or read book Mercury in the Biogeochemical Cycle written by Marc Marcotte and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, major environmental issues are the object of large public debates de spite the fact that scientific knowledge is often insufficient to draw unequivocal conclusions. Such is the case in the ongoing debate regarding the specific contri butions of anthropogenic greenhouse gas emissions and of natural climate changes to global warming. At least 10 to 20 years of additional observations will be re quired, before we will be able to conclude, with certainty, on this subject. In the mean time, and as directed by their immediate interests, people will continue to promote contradictory opinions. The media are, in part, responsible for perpetuat ing such debates in that they convey indiscriminately the opinion of highly credi ble scientists as that of dogmatic researchers, the latter, unfortunately too often expressing working hypotheses as established facts. Naturally, in a similarly mis informed manner, pressure groups tend to support the researcher whose opinions most closely represent either their particular ideological battles or their economic interests and, hence, in their own way, add further to the confusion and obscurity of the debate. Only a few years ago, mercury (Hg)contamination in hydroelectric reservoirs was the object of such media and social biases. At the time, analytical data used to support the discourse were themselves uncertain and numerous hypotheses, often times fanciful, were proposed and hastily "delivered" to the public.
Book Synopsis Influence of Environmental Factors on Mercury Release in Hydroelectric Reservoirs by : Canadian Electrical Association
Download or read book Influence of Environmental Factors on Mercury Release in Hydroelectric Reservoirs written by Canadian Electrical Association and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Kenneth A. (Kenneth Alexander) Morrison Publisher :Montréal : Canadian Electrical Association ISBN 13 : Total Pages :155 pages Book Rating :4.:/5 (262 download)
Book Synopsis Influence of Environmental Factors on Mercury Release in Hydroelectric Reservoirs by : Kenneth A. (Kenneth Alexander) Morrison
Download or read book Influence of Environmental Factors on Mercury Release in Hydroelectric Reservoirs written by Kenneth A. (Kenneth Alexander) Morrison and published by Montréal : Canadian Electrical Association. This book was released on 1991 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Bodaly, R. A. (Richard Andrew) Publisher :Montréal : North Wind Information Services ISBN 13 :9782921505048 Total Pages :15 pages Book Rating :4.5/5 (5 download)
Book Synopsis The Mercury Problem in Hydro-electric Reservoirs with Predictions of Mercury Burdens in Fish in the Proposed Grande Baleine Complex, Québec by : Bodaly, R. A. (Richard Andrew)
Download or read book The Mercury Problem in Hydro-electric Reservoirs with Predictions of Mercury Burdens in Fish in the Proposed Grande Baleine Complex, Québec written by Bodaly, R. A. (Richard Andrew) and published by Montréal : North Wind Information Services. This book was released on 1992 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report reviewing the subject of elevated mercury concentrations in fish in hydroelectric reservoirs, including aspects of the cause, severity and duration of contamination.
Book Synopsis Mercury Mitigative Measures Related to Hydroelectric Reservoirs by :
Download or read book Mercury Mitigative Measures Related to Hydroelectric Reservoirs written by and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The LaGrande hydroelectric complex in the James Bay region of Quebec comprises nine generating stations and requires the impounding of eight reservoirs, involving flooding of over 4,000 square miles of land surface. Flooding of land which contains large quantities of organic material leads to transformation by bacteria of sedimentary inorganic mercury into methylmercury, which in turn bioaccumulates in fish. This paper notes the increase in mercury levels in major fish species in the LaGrande 2 Reservoir and discusses the implications for local Cree populations, who rely on fish as an important food source. The paper evaluates a number of at-source remedial measures aimed at reducing mercury levels in reservoir fish, and describes compensation measures adopted to reduce Cree exposure to mercury while ensuring their traditional way of life. The paper concludes with a case study of the Eastmain-1 project and the compensation measures proposed.
Book Synopsis Social and Environmental Impacts of the James Bay Hydroelectric Project by : James F. Hornig
Download or read book Social and Environmental Impacts of the James Bay Hydroelectric Project written by James F. Hornig and published by McGill-Queen's Press - MQUP. This book was released on 1999-12-13 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first mega-scale hydro project to be built in the sub-Arctic, capable of generating as much electricity as fifteen nuclear power plants, its impact includes disruption of vast areas in an extremely fragile ecosystem as well as displacement of native peoples and the introduction of dangerous levels of mercury into their food supply. The debate over these complex environmental issues has been further complicated by political issues stemming from the importance of the project to the economic development of Quebec and the sale of at least ten percent of the electricity generated the United States. The contributors examine core issues of the controversy both in relation to James Bay and to other large hydroelectric projects, such as the Aswan dam in Egypt and the Three Gorges dam in China. Providing insights from an unusual variety of disciplines, the authors offer important considerations that must be taken into account as Quebec assesses additional phases of hydroelectric development of the watershed east of Hudson Bay. Contributors include Raymond B. Coppinger (Hampshire College), Bill Dale Roebuck (Dartmouth Medical School), Will Ryan (Hampshire College), Adrian Tanner (Memorial University), Stanley L. Warner (Hampshire College), Kessler E. Woodward (University of Alaska), and Oran R. Young (Dartmouth College).
Book Synopsis Mercury in the Environment by : Michael S. Bank
Download or read book Mercury in the Environment written by Michael S. Bank and published by Univ of California Press. This book was released on 2012-05-31 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Mercury deposition and contamination is widespread and well documented, and it continues to be a public-health concern for certain sectors of the global human population in both developed and developing countries. This edited volume focuses on integrating the diverse sciences involved in the process of mercury cycling in the environment--from the atmosphere, through terrestrial and aquatic food webs, and human populations--to develop a comprehensive perspective on this important environmental pollutant. Using a systems-level approach, this book provides recommendations on mercury remediation, risk communication, education, and monitoring. In response to a growing need for understanding the cycling of this ubiquitous pollutant, the science of mercury has grown rapidly, expanding into several interdisciplinary fields and encompassing such disparate academic and scientific disciplines as biogeochemistry, economics, sociology, public health, decision sciences, physics, global change, and mathematics. Only recently have scientists really begun to establish more holistic approaches to studying mercury pollution, giving rise to investigations that have furthered the integration of a multi-tiered approach, especially by using chemistry, biology, and human health sciences collectively. The study of mercury pollution has produced a variety of contributions to domestic and international policies related to the management of mercury in the environment"-- Provided by publisher.
Book Synopsis Biogeochemical Cycle of Mercury in Reservoir Systems in Wujiang River Basin, Southwest China by : Xinbin Feng
Download or read book Biogeochemical Cycle of Mercury in Reservoir Systems in Wujiang River Basin, Southwest China written by Xinbin Feng and published by Springer. This book was released on 2017-11-09 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an intensive study on the biogeochemical cycle of mercury in a river-reservoir system in Wujiang River Basin, the upper branch of the Yangtze River. Six reservoirs located in the mainstream of the Wujiang River and their corresponding inflow/outflow rivers were selected for inclusion in this study, which was conducted by researchers from the Institute of Geochemistry, Chinese Academy of Sciences. The concentration and distribution of Hg in reservoirs (the water column, sediment, sediment pore water), inflow/outflow rivers of reservoirs, and wet deposition in Wujiang River Basin were systematically investigated, and measurements were taken of the water/air exchange flux of gaseous elemental mercury (GEM). On the basis of the data gathered, a detailed mass balance of total mercury (THg) and methylmercury (MeHg) in the six reservoirs was developed. In addition, the book identifies the primary factors controlling Hg methylation in the river-reservoir system in Wujiang River Basin. The accumulation and bio-magnification of Hg species within food chains in reservoirs and human health risk of MeHg exposure through fish consumption are also included in this book.
Book Synopsis Mercury Release in Hydroelectric Reservoirs by : Jones, Michael L
Download or read book Mercury Release in Hydroelectric Reservoirs written by Jones, Michael L and published by . This book was released on 1986 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Biogeochemistry of Mercury in the Environment by : Jerome O. Nriagu
Download or read book The Biogeochemistry of Mercury in the Environment written by Jerome O. Nriagu and published by Elsevier-North-Holland Biomedical Press. This book was released on 1979 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mercury from Gold and Silver Mining by : Luiz D.de Lacerda
Download or read book Mercury from Gold and Silver Mining written by Luiz D.de Lacerda and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to its inherent characteristics, mercury contamination from gold mining is a major environmental problem compared to past mercury contamination from industrial point sources. The worsening of social-economical conditions and increasing gold prices in the late 1970s resulted in a new rush for gold by individual entrepreneurs for whom Hg amalgamation is a cheap and easily carried out operation. Even after the present-day mining areas are exhausted, the mercury left behind will remain part of the biochemical cycle of the tropical forest. This book reviews the current information on mercury from gold mining, its cycling in the environment and its long-term ecotoxicological impact. The book is illustrated with numerous diagrams and photographs.
Book Synopsis Environmental ScienceBites by : Kylienne A. Clark
Download or read book Environmental ScienceBites written by Kylienne A. Clark and published by The Ohio State University. This book was released on 2015-09-15 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written by undergraduate students at The Ohio State University (OSU) who were enrolled in the class Introduction to Environmental Science. The chapters describe some of Earth's major environmental challenges and discuss ways that humans are using cutting-edge science and engineering to provide sustainable solutions to these problems. Topics are as diverse as the students, who represent virtually every department, school and college at OSU. The environmental issue that is described in each chapter is particularly important to the author, who hopes that their story will serve as inspiration to protect Earth for all life.
Book Synopsis Environmental Chemistry and Toxicology of Mercury by : Guangliang Liu
Download or read book Environmental Chemistry and Toxicology of Mercury written by Guangliang Liu and published by John Wiley & Sons. This book was released on 2011-11-07 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the fundamentals, recent developments, and future research needs for critical mercury transformation and transport processes, as well as the experimental methods that have been employed in recent studies. The coverage discusses the environmental behavior and toxicological effects of mercury on organisms, including humans, and provides case studies at the end of each chapter. Bringing together information normally spread across several books, this text is unique in covering the entire mercury cycle and providing a baseline for what is known and what uncertainties remain in respect to mercury cycling.
Book Synopsis Advances in Mercury Toxicology by : Tsuguyoshi Suzuki
Download or read book Advances in Mercury Toxicology written by Tsuguyoshi Suzuki and published by Springer Science & Business Media. This book was released on 1991 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mercury in Environmental Media of Finlay Reach, Williston Reservoir by : EVS Environment Consultants Ltd
Download or read book Mercury in Environmental Media of Finlay Reach, Williston Reservoir written by EVS Environment Consultants Ltd and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Williston Reservoir was created between 1968 and 1972 following construction of the W.A.C. Bennett Dam, flooding large areas of the Peace, Parsnip and Finlay rivers to form the largest lentic freshwater system in BC. It is well known that flooding of terrestrial soils and vegetation to form new reservoirs causes methyl mercury (MeHg) concentrations in water, sediment, lower trophic level biota and fish to increase and remain elevated above background levels for decades. In the aquatic food chain, highest concentrations and greatest persistence in mercury concentrations are observed in fish. Mercury concentrations measured in bull trout (Salvelinus confluentus) in 1980 and 1988 showed that adults had concentrations well above the recommended guideline for commercial sale of 0.5 ppm. Because mercury concentrations in bull trout did not appear to have declined over this eight year period, there was concern that mercury concentrations continued to be elevated, 20 years after reservoir creation. There are no pre-flood Hg data for bull trout from the reservoir or nearby lakes to confirm this. To address this issue, BC Hydro initiated a study funded by the Strategic Environmental Initiatives Project (SEIP) in 1999 to investigate the possible factors contributing to Hg concentrations in Williston Reservoir bull trout and lake whitefish (Coregonus clupeaformis). A key component to the success of this initiative has been the development of a mechanistic mercury model by Tetra Tech Inc., Oakville (Manitoba Hydro Mercury Model for Reservoirs -MNMMR). Data collected from the 2000/2001 sampling program in Finlay Reach provided the necessary input parameters to ultimately predict future fish Hg concentrations and if concentrations can be expected to decline further.
Book Synopsis Mercury Cycling in Hydroelectric Reservoirs of Northern Manitoba Decades After Impoundment by : James Micheal Judah Campbell Singer
Download or read book Mercury Cycling in Hydroelectric Reservoirs of Northern Manitoba Decades After Impoundment written by James Micheal Judah Campbell Singer and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the global climate changes and demand for renewable electricity increases, construction of hydroelectric dams is increasing globally though the impacts of regulating the worlds rivers are still understudied. Northern Manitoba, Canada, has extensive hydroelectric development since the 1950s; fish mercury (Hg) concentrations in on-system lakes were observed to have increased above human consumption guidelines upon impoundment and have taken decades to decrease towards natural concentrations. To better understand the long-term impacts of hydroelectric regulation on Hg in fish and other biota in Northern Manitoba, we determined methylmercury (MeHg) production potential in soil from the water fluctuation zone in on- and off-system lakes through a soil flooding incubation experiment in the laboratory. We further studied the historic flux of MeHg and Hg to the sediments in on- and off-system lakes and links to organic matter in these waterbodies. We found that MeHg production was highest in the water fluctuation zone of the on-system lakes, which may represent an increased source of MeHg to the food web in these environments even decades after impoundment. In addition, sedimentation rates were found to greatly affect Hg fluxes to the sediment in those waterbodies where increased water flows result in higher erosion and sedimentation. These findings provide new insight in our understanding of the long-term recovery of Hg cycling within on-system lakes decades after impoundment.
