Download or read book Transport of Mercury from Soils to Streams in Two Forested Catchments on Mt Mansfield Vermont written by Andrea F. Donlon and published by . This book was released on 1999 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Small Wetlands and Lakes in Transformation and Transport of Total and Methyl Mercury in the Adirondacks written by Pranesh Selvendiran and published by . This book was released on 2009 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mercury (Hg) is an environmental pollutant that leads to the contamination of forest, soils, lakes and streams. Hg is also a well known neurotoxin and, human and wildlife health concerns are primarily related to exposure to methyl mercury (MeHg) that bioaccumulates in aquatic and terrestrial organisms. Wetlands are important landscapes where ionic Hg (Hg 2+ ) is transformed to MeHg, and transported to downstream aquatic ecosystems. This research was conducted in small forest watershed-lake ecosystems in the Adirondacks to better understand Hg cycling in wetlands and lakes. The study was conducted in three phases. Phase I and II, were designed to investigate Hg transport and fate in two forest wetlands through detailed evaluations of seasonal Hg concentrations and mass budgets. The two wetlands, a riparian peatland and an abandoned beaver meadow, intercept majority of the upland runoff from Archer Creek draining Arbutus Lake Watershed. In Phase III, Hg budgets of two contrasting lakes were evaluated. Arbutus and Sunday lakes differ in landscape, physical and chemical attributes. The proportion of total mercury (THg) that was methyl mercury (% MeHg) in the upland stream of Archer Creek increased from 2% in the upland system to 6% at the outlet of the wetlands. During the growing season concentrations of THg, MeHg and dissolved organic carbon (DOC) were markedly higher and sulfate (SO 4 2- ) was markedly lower compared to the non-growing season. Transport of Hg species was facilitated by DOC production as indicated by significant positive relations with THg and MeHg. Mass balance calculations revealed that the wetlands were net sources of THg and MeHg to stream water, although the magnitude of the source was a function of wetland connectivity to stream water. The storage of THg and MeHg in wetland soil was a large pool which seems coupled with total carbon and sulfur accumulation. In the current scenario of decreasing Hg emission and atmospheric deposition, the large 'active' Hg soil pool in wetlands is a potential short-term and long-term source of Hg and MeHg to downstream aquatic ecosystems. Concentrations of Hg species increased with increases in DOC concentrations and percent wetland coverage at Arbutus (4%) and Sunday Lake (20%). Negligible removal of THg inputs was observed at Sunday Lake that has a short hydraulic residence time (HRT; 0.02 yrs) compared to approximately 60% removal at Arbutus Lake that has longer HRT (0.6 yrs).
Download or read book Urban Stormwater Management in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-03-17 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
Download or read book Impacts of Climate Change on Human Health in the United States written by US Global Change Research Program and published by Simon and Schuster. This book was released on 2018-02-06 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: As global climate change proliferates, so too do the health risks associated with the changing world around us. Called for in the President’s Climate Action Plan and put together by experts from eight different Federal agencies, The Impacts of Climate Change on Human Health: A Scientific Assessment is a comprehensive report on these evolving health risks, including: Temperature-related death and illness Air quality deterioration Impacts of extreme events on human health Vector-borne diseases Climate impacts on water-related Illness Food safety, nutrition, and distribution Mental health and well-being This report summarizes scientific data in a concise and accessible fashion for the general public, providing executive summaries, key takeaways, and full-color diagrams and charts. Learn what health risks face you and your family as a result of global climate change and start preparing now with The Impacts of Climate Change on Human Health.
Download or read book The Chemistry of Mercury written by Charles Andrew McAuliffe and published by Springer. This book was released on 2016-03-21 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acid Precipitation written by and published by . This book was released on 1984 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cadmium in the Environment written by Mislin and published by Birkhäuser. This book was released on 2013-03-08 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable Energy written by David J. C. MacKay and published by . This book was released on 2009 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alternatives for Managing the Nation s Complex Contaminated Groundwater Sites written by National Research Council and published by National Academies Press. This book was released on 2013-02-27 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: Across the United States, thousands of hazardous waste sites are contaminated with chemicals that prevent the underlying groundwater from meeting drinking water standards. These include Superfund sites and other facilities that handle and dispose of hazardous waste, active and inactive dry cleaners, and leaking underground storage tanks; many are at federal facilities such as military installations. While many sites have been closed over the past 30 years through cleanup programs run by the U.S. Department of Defense, the U.S. EPA, and other state and federal agencies, the remaining caseload is much more difficult to address because the nature of the contamination and subsurface conditions make it difficult to achieve drinking water standards in the affected groundwater. Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites estimates that at least 126,000 sites across the U.S. still have contaminated groundwater, and their closure is expected to cost at least $110 billion to $127 billion. About 10 percent of these sites are considered "complex," meaning restoration is unlikely to be achieved in the next 50 to 100 years due to technological limitations. At sites where contaminant concentrations have plateaued at levels above cleanup goals despite active efforts, the report recommends evaluating whether the sites should transition to long-term management, where risks would be monitored and harmful exposures prevented, but at reduced costs.
Download or read book Environmental Engineering Dictionary and Directory written by Thomas M. Pankratz and published by CRC Press. This book was released on 2000-09-22 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Like most technical disciplines, environmental science and engineering is becoming increasingly specialized. As industry professionals focus on specific environmental subjects they become less familiar with environmental problems and solutions outside their area of expertise. This situation is compounded by the fact that many environmental science
Download or read book Coal Geology written by Larry Thomas and published by John Wiley & Sons. This book was released on 2020-07-13 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: A global exploration of coal geology, from production and use to chemical properties and coal petrology Coal Geology, 3rd Edition, offers a revised and updated edition of this popular book which provides a comprehensive overview of the field of coal geology including coal geophysics, hydrogeology and mining. Also covered in this volume are fully revised coverage of resource and reserve definitions, equipment and recording techniques together with the use of coal as an alternative energy source as well as environmental implications. This third edition provides a textbook ideally suited to anyone studying, researching or working in the field of coal geology, geotechnical engineering and environmental science. Fills the gap between academic aspects of coal geology and the practical role of geology in the coal industry Examines sedimentological and stratigraphical geology, together with mining, geophysics, hydrogeology, environmental issues and coal marketing Defines global coal resource classifications and methods of calculation Addresses the alternative uses of coal as a source of energy Covers a global approach to coal producers and consumers
Download or read book Results of the nationwide urban runoff program written by and published by . This book was released on 1982 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology Education for Social and Sustainable Development written by Mijung Kim and published by Springer Science & Business Media. This book was released on 2012-10-20 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an era of globalization and urbanization, various social, economic, and environmental challenges surround advances in modern biological sciences. Considering how biological knowledge and practice are intrinsically related to building a sustainable relationship between nature and human society, the roles of biology education need to be rethought to respond to issues and changes to life in this biocentury. This book is a compilation of selected papers from the Twenty Third Biennial Conference of the Asian Association for Biology Education 2010. The title, Biology Education for Social and Sustainable Development, demonstrates how rethinking and reconstruction of biology education in the Asia-Pacific region are increasingly grounded in deep understandings of what counts as valuable local knowledge, practices, culture, and ideologies for national and global issues, and education for sustainable development. The 42 papers by eminent science educators from Australia, China, Philippines, Singapore, Taiwan, and the U.S., represent a diversity of views, understandings, and practices in biology education for sustainable development from school to university in diverse education systems and social-cultural settings in the Asia-Pacific region and beyond. The book is an invaluable resource and essential reference for researchers and educators on Asian perspectives and practices on biology education for social and sustainable development.
Download or read book Nutrient Criteria Technical Guidance Manual written by and published by . This book was released on 2000 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Physical Geography written by Francis J. Monkhouse and published by Rowman & Littlefield. This book was released on 1964-01-15 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive study is concerned with the solid rocks, the seas and oceans, our enveloping atmosphere, the soil and the “green mantle” of natural vegetation—as they interrelate in man’s physical environment. The text is illustrated with many photographs and specially-drawn maps and diagrams.
Download or read book Hemicellulose Biorefinery A Sustainable Solution for Value Addition to Bio Based Products and Bioenergy written by Michel Brienzo and published by Springer Nature. This book was released on 2022-01-03 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book provides knowledge about hemicelluloses biorefinery approaching production life cycle, circular economy, and valorization by obtaining value-added bioproducts and bioenergy. A special focus is dedicated to chemical and biochemical compounds produced from the hemicelluloses derivatives platform. Hemicelluloses are polysaccharides located into plant cell wall, with diverse chemical structures and properties. It is the second most spread organic polymer on nature and found in vast lignocellulosic materials from agro and industrial wastes, therefore, hemicelluloses are considered as abundant and renewable raw material/feedstock. Biorefinery concept contributes to hemicelluloses production associated with biomass industrial processes. Hemicelluloses are alternative sources of sugars for renewable fuels and as platform for chemicals production. This book reviews chemical processes for sugar production and degradation, obtaining of intermediate and final products, and challenges for pentose fermentation. Aspects of hemicelluloses chain chemical and enzymatic modifications are presented with focus on physicochemical properties improvement for bioplastic and biomaterial approaches. Hemicelluloses are presented as sources for advanced materials in biomedical and pharmaceutical uses, and as hydrogel for chemical and medicine deliveries. An interdisciplinary approach is needed to cover all the processes involving hemicelluloses, its conversion into final and intermediate value-added compounds, and bioenergy production. Covering this context, this book is of interest to teachers, students, researchers, and scientists dedicated to biomass valorization. This book is a knowledge source of basic aspects to advanced processing and application for graduate students, particularly. Besides, the book serves as additional reading material for undergraduate students (from different courses) with a deep interest in biomass and waste conversion, valorization, and chemical products from hemicelluloses
Download or read book Environmental Hygiene II written by Norbert H. Seemayer 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: Environmental Hygiene II deals with the evaluation of environmental pollutants and their relevance to human health. Main topics include mutagenic and carcinogenic activity of environmental chemicals, specific effects of heavy metals, special biological indicators for screening environmental contaminants and monitoring of indoor/outdoor air pollutants. Furthermore, assessment of exposure to environmental and occupational chemicals in man are presented as well as epidemiological studies on the health effects by environmental pollution, studies of inhalation toxicology and strategies and policy of environmental control.
