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Download or read book A Study of Arsenic Contamination from the Royal Oak Giant Mine, Yellowknife, Northwest Territories written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Bowell
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1614517975
Total Pages : 668 pages
Book Rating : 4.6/5 (145 download)
Download or read book Arsenic written by Robert Bowell and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-11-21 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Mineralogy and Bio-Geochemistry of Arsenic provides a comprehensive understanding of arsenic geochemistry in the near-surface environment. Topics covered include the mineralogy, thermodynamics, geochemistry, analysis, microbiology, and bioavailability of arsenic, with emphasis on implications for arsenic toxicity, geochemistry in natural ground waters, and mine-associated impacts and possible mitigation options. This volume is useful for those seeking to understand arsenic geochemistry and biological interactions in the near-surface environment, Clay Minerals does not use an online manuscript tracking/submission system. as well those working for mining companies, the chemicals industry, NGO’s or government bodies concerned with reducing the impact of arsenic on the environment.
Author : Claudia Tanamal
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)
Download or read book The Impacts of Legacy Mining Operation on Inorganic Arsenic Bioaccumulation and Exposure in Yellowknife, Northwest Territories, Canada written by Claudia Tanamal and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic transfers and toxicology are important topics of research and a public health concern because arsenicosis affects millions of people worldwide every year. One of the most significant sources of arsenic in the environment is industrial wastes, such as by-products of mining operation. In Yellowknife, Northwest Territories, Canada, there were two large gold mines-Giant Mine and Con Mine, along with dozens of small-scale mines. The combined by-product of emission from these roasters might have contributed to high concentrations of arsenic found in the city. This thesis presents the results of two related studies to address the environmental health concern: (1) to investigate the arsenic transfers and arsenic species accumulation in freshwater food webs near large legacy mining operations in Yellowknife, and (2) to assess the long-term health risk of inorganic arsenic exposure from the consumption of fish in Yellowknife among the general residents and the Yellowknives Dene First Nation. We found that inorganic arsenic is biominified in food webs (i.e. inorganic arsenic concentrations diminish at higher trophic positions relative to lower trophic positions). Higher-trophic organisms have low inorganic arsenic concentrations in tissue due to biotransformation of inorganic arsenic to non-toxic organic arsenobetaine, and effective elimination of arsenic from their tissue. The trophic positions of freshwater organisms can be used to predict the range of arsenic concentrations and its species composition, accounting for more than 80% of variance. Dietary study results show that the Yellowknives Dene First Nation consumed significantly more fish in their diets (adults: 19 g/day, children: 9 g/day) compared to the general residents of Yellowknife (adults: 9 g/day, children: 5 g/day). Our probabilistic risk assessments showed no significant long-term non-carcinogenic and carcinogenic health risks of inorganic arsenic exposure from fish consumption for the majority of Yellowknife residents, but elevated cancer risks among the adult heavy fish consumers in Yellowknife. However, our data suggested that the residents of Yellowknife were not exposed to higher cancer risks from inorganic exposure compared to the general population in Canada. Therefore, due to fish health benefits and the values associated with its consumption, fish should continue to be a major source of sustenance in Yellowknife.
Author : Michael D. Delong
Publisher : Academic Press
ISBN 13 : 0128188480
Total Pages : 1109 pages
Book Rating : 4.1/5 (281 download)
Download or read book Rivers of North America written by Michael D. Delong and published by Academic Press. This book was released on 2023-04-20 with total page 1109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers of North America, Second Edition features new updates on rivers included in the first edition, as well as brand new information on additional rivers. This new edition expands the knowledge base, providing readers with a broader comparative approach to understand both the common and distinct attributes of river networks. The first edition addressed the three primary disciplines of river science: hydrology, geomorphology, and ecology. This new edition expands upon the interactive nature of these disciplines, showing how they define the organization of a riverine landscape and its processes. An essential resource for river scientists working in ecology, hydrology, and geomorphology. - Provides a single source of information on North America's major rivers - Features authoritative information on more than 200 rivers from regional specialists - Includes full-color photographs and topographical maps to illustrate the beauty, major features, and uniqueness of each river system - Offers one-page summaries help readers quickly find key statistics and make comparisons among rivers
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (138 download)
Download or read book Arsenic Control Site Data Compilation Yellowknife, NWT written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report reviewing use of a geochemical data obtained from soil sampling by Royal Oak Mines in Yellowknife to address arsenic soil remeditation and development of a control site for arsenic in Yellowknife area.
Author : Canada. Environment Canada
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (54 download)
Download or read book Assessment of Human Health Risks Posed by Arsenic Contamination in Yellowknife, NWT : Final Report written by Canada. Environment Canada and published by . This book was released on 2002 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Canada. Medical Services Branch. N.W.T. Region
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (1 download)
Download or read book Arsenic Exposure in Workplace Areas of Giant Yellowknife Mines Limited, Yellowknife, Northwest Territories, July 1976 written by Canada. Medical Services Branch. N.W.T. Region and published by . This book was released on 1976 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Canada. Task Force on Arsenic
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.:/5 (562 download)
Download or read book Final Report written by Canada. Task Force on Arsenic and published by . This book was released on 1977 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (932 download)
Download or read book Air Dispersion Modelling of Roaster Stack Emissions, Royal Oak Giant Yellowknife Mine, Yellowknife, Northwest Territories -- Rev written by and published by . This book was released on 1995 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold ore processing at the Giant Yellowknife Mine includes a roasting process that produces an off-gas rich in sulphur dioxide and arsenic trioxide. This report describes an air dispersion modelling study conducted to aid in understanding how the roasting process emissions are carried by the wind away from the mine and to provide a planning tool to assess potential measures for reducing air pollution. Sections of the report cover background information about the site, the emission source, and local meteorology; model selection, the configuration of selected model runs, and baseline modelling results; modelling results in comparison with ambient air pollution monitoring results; and a sensitivity analysis where the individual and combined effects of stack discharge parameters and mass emission rates are evaluated. The model also predicted what the changes in pollution levels would be if certain changes were made to the roaster stack.
Author : NORTHWEST TERRITORIES. GOVERNMENT. AD HOC STANDING COMMITTEE ON ARSENIC.
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (131 download)
Download or read book ARSENIC IN THE YELLOWKNIFE ENVIRONMENT - TECHNICAL DATA SUMMARY. written by NORTHWEST TERRITORIES. GOVERNMENT. AD HOC STANDING COMMITTEE ON ARSENIC. and published by . This book was released on 1977 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Kurt Sandlos
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (898 download)
Download or read book Communicating Danger written by John Kurt Sandlos and published by . This book was released on 2014 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Giant Mine Remediation Plan proposes to freeze 237,000 tons of toxic arsenic trioxide dust where it is currently stored underground. It is likely that water pumping, monitoring, and maintenance at the site will be necessary for a very long time to prevent the arsenic from seeping into the local environment. The recent environmental assessment of the project requires ongoing research into a permanent solution to the arsenic problem at Giant Mine within a 100 year time frame. Despite this, a century is a very long time (people have forgotten about toxic sites over shorter periods), and there is no guarantee that technology can be developed to safely remove all arsenic from the site. A system to communicate with future generations about the arsenic hazards will reduce the risk people will forget about the site. ... At Giant Mine, a messaging system might involve simple warning signs and text messages imploring people not to damage the thermosyphons, with more detailed technical information on how to replace this equipment when necessary and maintain other facilities such as the water treatment plant. Unlike nuclear waste, it is possible that the arsenic threat might be removed within a relative short period of time (a matter of decades rather than the centuries it takes for nuclear waste to decay), so the emphasis might be on 'relaying' information on how to maintain the site to people roughly a century from now"--
Author :
Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.:/5 (31 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Canadian Public Health Association. Task Force on Arsenic
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (11 download)
Download or read book Final Report; Yellowknife, Northwest Territories written by Canadian Public Health Association. Task Force on Arsenic and published by . This book was released on 1977 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. Petruk
Publisher : Elsevier
ISBN 13 : 0080527337
Total Pages : 287 pages
Book Rating : 4.0/5 (85 download)
Download or read book Applied Mineralogy in the Mining Industry written by W. Petruk and published by Elsevier. This book was released on 2000-11-29 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques of performing applied mineralogy investigations, and applications and capabilities of recently developed instruments for measuring mineral properties are explored in this book intended for practicing applied mineralogists, students in mineralogy and metallurgy, and mineral processing engineers. The benefits of applied mineralogy are presented by using in-depth applied mineralogy studies on base metal ores, gold ores, porphyry copper ores, iron ores and industrial minerals as examples. The chapter on base metal ores includes a discussion on the effects of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- on the recoveries of sphalerite, galena and chalcopyrite. The chapter on gold discusses various methods of determining the quantities of gold in different minerals, including 'invisible' gold in pyrite and arsenopyrite, so that a balance of the distribution of gold among the minerals can be calculated. This book also discusses the roles of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes currently used and proposed methods of remediation of acidic drainage.
Author : Dan Billing
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (463 download)
Download or read book Technical Data Summary written by Dan Billing and published by . This book was released on 1977 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Initial report published January 1977. Summarizes all available information on the level of arsenic in various segments of the Yellowknife environment.
Download or read book Assessment of Human Health Risks Posed by Arsenic Contamination in Yellowknife, NWT written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Canada. Environment Canada
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (54 download)
Download or read book Determining Natural (background) Arsenic Soil Concentrations in Yellowknife NWT and Deriving Site-specific Human Health-based Remediation Objectives for Arsenic in the Yellowknife Area : Final Report written by Canada. Environment Canada and published by . This book was released on 2002 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
