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Identifying Sources Of Subsurface Nitrate Pollution With Stable Nitrogen Isotopes
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Book Synopsis Identifying Sources of Subsurface Nitrate Pollution with Stable Nitrogen Isotopes by : Timothy J. Wolterink
Download or read book Identifying Sources of Subsurface Nitrate Pollution with Stable Nitrogen Isotopes written by Timothy J. Wolterink and published by . This book was released on 1979 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Identifying Sources of Subsurface Nitrate Pollution with Stable Nitrogen Isotopes by : Timothy J. Wolterink
Download or read book Identifying Sources of Subsurface Nitrate Pollution with Stable Nitrogen Isotopes written by Timothy J. Wolterink and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Identifying Sources of Subsurface Nitrate Pollution with Stable Nitrogen Isotopes by : Timothy J. Wolterink
Download or read book Identifying Sources of Subsurface Nitrate Pollution with Stable Nitrogen Isotopes written by Timothy J. Wolterink and published by . This book was released on 1979 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Tracers in Subsurface Hydrology by : Peter G. Cook
Download or read book Environmental Tracers in Subsurface Hydrology written by Peter G. Cook and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Tracers in Subsurface Hydrology synthesizes the research of specialists into a comprehensive review of the application of environmental tracers to the study of soil water and groundwater flow. The book includes chapters which cover ionic tracers, noble gases, chlorofluorocarbons, tritium, chlorine-36, oxygen-18, deuterium, and isotopes of carbon, strontium, sulphur and nitrogen. Applications of the tracers include the estimation of vertical and horizontal groundwater velocities, groundwater recharge rates, inter-aquifer leakage and mixing processes, chemical processes and palaeohydrology. Practicing hydrologists, soil physicists and hydrology professors and students will find the book to be a valuable support in their work.
Book Synopsis Methods for Identifying Sources of Nitrogen Contamination of Ground Water in Valleys in Washoe County, Nevada by : R. L. Seiler
Download or read book Methods for Identifying Sources of Nitrogen Contamination of Ground Water in Valleys in Washoe County, Nevada written by R. L. Seiler and published by . This book was released on 1996 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Stable Isotopes of Carbon, Nitrogen, and Sulfur to Identify Sources of Nitrogen in Surface Waters in the Lower Susquehanna River Basin, Pennsylvania by : Charles A. Cravotta
Download or read book Use of Stable Isotopes of Carbon, Nitrogen, and Sulfur to Identify Sources of Nitrogen in Surface Waters in the Lower Susquehanna River Basin, Pennsylvania written by Charles A. Cravotta and published by . This book was released on 2002 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Identification of the Sources of Nitrate Contamination in the Western Galilee Aquifers, Northern Israel, Using a Multi-proxy Stable Isotope and Chemical Approach by : B. Schilman
Download or read book Identification of the Sources of Nitrate Contamination in the Western Galilee Aquifers, Northern Israel, Using a Multi-proxy Stable Isotope and Chemical Approach written by B. Schilman and published by . This book was released on 2007 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Identification of Nitrate Sources Using Hydrogeochemical and Stable Isotope in the Aquifer, Amphoe Kaeng Khoi, Changwat Saraburi by : Wanlapa Wisittammasri
Download or read book Identification of Nitrate Sources Using Hydrogeochemical and Stable Isotope in the Aquifer, Amphoe Kaeng Khoi, Changwat Saraburi written by Wanlapa Wisittammasri and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A long time agricultural activities result in the NO3- contamination in groundwater in Thailand. The objectives of this research were: to investigate hydrogeochemical and hydrogeological characteristics, to assess nitrate concentration in groundwater and finally to further use hydrogeochemical properties and stable isotopes for identifying the sources of nitrate, including their processes affecting nitrate contamination in groundwater.Total 44 groundwater samples were collected from Amphoe Kaeng Khoi, Saraburi in November, 2014 (rainy season) and May, 2015 (summer season) to analyze Fe, Ca2+, Mg2+, Na+, K+, NH4+, Cl-, F-, Br-, NO2-, NO3-, SO42-, PO43-, alkalinity, and 18O and 2H. The mainly groundwater flow direction is from east to west, which conforms to the topography. Average groundwater level in the summer season was lower than that in the rainy season average 0.64m. The recharge area is located in the eastern part of the study area. Groundwater type mainly is Ca-Na-HCO3. NO3- concentration is relatively higher in the summer season due to temperature effect. The highest NO3- concentration was found at station No. 2 in both seasons. The sources of NO3- are from mineral in soils and fertilizer. According to the stable isotope analysis, 11 stations deviate along an evaporation trend (D = 4.248518O – 15.935). Dilution process and denitrification plays an important role in nitrate attenuation. On the other hand, the nitrification process is a key process affecting the increase of NO3- concentration. Thus, the hydrogeochemical and stable isotope analysis are an essential tool for understanding the sources and processes, influencing on nitrate concentration.
Book Synopsis Groundwater Geochemistry and Isotopes by : Ian Clark
Download or read book Groundwater Geochemistry and Isotopes written by Ian Clark and published by CRC Press. This book was released on 2015-04-17 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: There remains a lack of understanding of environmental isotopes and their use; students and practitioners typically find the concepts of isotope concentrations and partitioning to be more complicated than for geochemistry. However, this need not be so, if the basics are presented together with geochemistry, using case studies and examples to make the point. This new book presents the basics of environmental isotopes and geochemistry together, with case studies and simple examples that build a real understanding of their use in natural and contaminated groundwater.
Book Synopsis Use of Water Stable Isotopes in Hydrological Process by : Polona Vreča
Download or read book Use of Water Stable Isotopes in Hydrological Process written by Polona Vreča and published by . This book was released on 2020 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrient concentrations in surface water and groundwater, and nitrate source identification using stable isotope analysis in the Barnegat Bay-Little Egg Harbor Watershed, New Jersey, 2010-11 by : Christine Wieben
Download or read book Nutrient concentrations in surface water and groundwater, and nitrate source identification using stable isotope analysis in the Barnegat Bay-Little Egg Harbor Watershed, New Jersey, 2010-11 written by Christine Wieben and published by CreateSpace. This book was released on 2013 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five streams in the Barnegat Bay-Little Egg Harbor (BB- LEH) watershed in southern New Jersey were sampled for nutrient concentrations and stable isotope composition under base-flow and stormflow conditions, and during the growing and nongrowing seasons, to help quantify and identify sources of nutrient loading. Samples were analyzed for concentrations of total nitrogen, ammonia, nitrate plus nitrite, organic nitro- gen, total phosphorus, and orthophosphate, and for nitrogen and oxygen stable isotope ratios. Concentrations of total nitrogen in the five streams appear to be related to land use, such that streams in subbasins characterized by extensive urban development (and histori- cal agricultural land use)-North Branch Metedeconk and Toms Rivers-exhibited the highest total nitrogen concentra- tions (0.84-1.36 milligrams per liter (mg/L) in base flow). Base-flow total nitrogen concentrations in these two streams were dominated by nitrate; nitrate concentrations decreased during storm events as a result of dilution by storm runoff.
Book Synopsis Application of Nitrogen Stable Isotopes to Identify Sources of Nutrient Pollution by : Elizabeth A. Redon
Download or read book Application of Nitrogen Stable Isotopes to Identify Sources of Nutrient Pollution written by Elizabeth A. Redon and published by . This book was released on 2001 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient pollution may perhaps be one of the oldest water quality problems and has recently been considered as one of the greatest threats to estuarine and coastal waters. Excessive nutrient loads have had a vast array of impacts on estuarine and coastal ecosystems globally. Direct negative effects include: shading out of benthic plant communities, hypoxia and anoxia due to increased biological oxygen demand, compositional change in plant and fauna! community structure and increased occurrences of harmful algal blooms. This has lead to decreased biodiversity, habitat, fisheries, tourism and aesthetics. So far environmental managers have had to rely on a posteriori assessments of the status of nutrient pollution, using indicators such as taxonomic shifts and changes in biological abundance, which have already occurred. By the time nutrient pollution is detected, restoration of habitats is costly and sometimes no longer an option. Therefore, there is a need for management tools to assess sources of nutrient loads before damage to estuarine and coastal ecosystems progresses beyond recovery. Early work using stable isotopes of dissolved inorganic nitrogen in groundwater samples demonstrated the potential for using stable isotopes to identify anthropogenic sources of nitrogen. These studies revealed that nitrogen sources such as fertilizers, soil organic nitrogen and wastewater nitrogen have isotopically distinct signatures that could be used to assess anthropogenic nitrogen contributions. Therefore, application of nitrogen stable isotope methods could potentially provide information on the anthropogenic nitrogen sources stimulating nutrient pollution in estuarine and coastal waters. However, when I assessed this approach for application, two sources of errors became apparent. First, laboratory isolation of dissolved inorganic nitrate from seawater delivered results depleted in 15N relative to the standard used to assess the method. Second, isotopic fractionation associated with nitrogen cycle processes complicates usage of an isotopic mass balance to solve for the nitrogen source and its fractional contribution based on isotopic data alone. As a result, isotopic analysis alone of dissolved inorganic nitrogen to determine anthropogenic sources of nutrient loads to estuarine and coastal waters is not a practical approach to obtain management information concerning nutrient pollution.
Book Synopsis Isotope Tracers in Catchment Hydrology by : C. Kendall
Download or read book Isotope Tracers in Catchment Hydrology written by C. Kendall and published by Elsevier. This book was released on 2012-12-02 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents a new "earth systems" approach to catchments that encompasses the physical and biogeochemical interactions that control the hydrology and biogeochemistry of the system. The text provides a comprehensive treatment of the fundamentals of catchment hydrology, principles of isotope geochemistry, and the isotope variability in the hydrologic cycle -- but the main focus of the book is on case studies in isotope hydrology and isotope geochemistry that explore the applications of isotope techniques for investigating modern environmental problems. Isotope Tracers in Catchment Hydrology is the first synthesis of physical hydrology and isotope geochemistry with catchment focus, and is a valuable reference for professionals and students alike in the fields of hydrology, hydrochemistry, and environmental science. This important interdisciplinary text provides extensive guidelines for the application of isotope techniques for all investigatores facing the challenge of protecting precious water, soil, and ecological resources from the ever-increasing problems associated with population growth and environmental change, including those from urban development and agricultural land uses.
Book Synopsis Monitored Natural Attenuation of Inorganic Contaminants in Ground Water by :
Download or read book Monitored Natural Attenuation of Inorganic Contaminants in Ground Water written by and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: V.3 ... consists of individual chapters that describe 1) the conceptual background for radionuclides, including tritium, radon, strontium, technetium, uranium, iodine, radium, thorium, cesium, plutonium-americium and 2) data requirements to be met during site characterization.
Book Synopsis Environmental Isotopes in Hydrogeology by : Ian D. Clark
Download or read book Environmental Isotopes in Hydrogeology written by Ian D. Clark and published by CRC Press. This book was released on 2013-11-20 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater is an increasingly important resource to human populations around the world, and the study and protection of groundwater is an essential part of hydrogeology - the subset of hydrology that concentrates on the subsurface. Environmental isotopes, naturally occurring nuclides in water and solutes, have become fundamental tools for tracing
Book Synopsis Preliminary Identification of Ground-water Nitrate Sources Using Nitrogen and Carbon Stable Isotopes, Kansas by : M. A. Townsend
Download or read book Preliminary Identification of Ground-water Nitrate Sources Using Nitrogen and Carbon Stable Isotopes, Kansas written by M. A. Townsend and published by . This book was released on 2008 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Groundwater Quality by : Harriet Nash
Download or read book Groundwater Quality written by Harriet Nash and published by Springer. This book was released on 1994-10-31 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater quality monitoring and testing is of paramount importance both in the developed and developing world. This book presents a series of papers illustrating the varied nature of current research into groundwater quality. Urban and rural supplies are covered through a case history approach, and the importance of remedial action to prevent deterioration is emphasized.
