Download or read book Delineating Heavy Metal Sources with Environmental Magnetism X ray Fluorescence and Geospatial Analysis written by Delmetria Taylor and published by . This book was released on 2016 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Metals in the Environment written by Mario Alfonso Murillo-Tovar and published by BoD – Books on Demand. This book was released on 2021-01-07 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: The occurrence of heavy metals in the environment, even in traces, represents a severe risk for the ecosystems and can be dangerous to human health. However, a better understanding of the main aspects involved is still needed to reduce its negative impact on the environment and health. This book covers the recent methods used for the evaluation of heavy metal pollution and the identification of its sources, descriptions of some of the processes involved in its mobility and transport, attempts to address health and environmental effects of heavy metals pollution, and presents alternative technologies for its removal and remediation from environmental samples. Therefore, this book is recommended for experts in the comprehensive management of metal contamination in different environmental compartments.
Download or read book Heavy Metals In The Environment written by Bibudhendra Sarkar and published by CRC Press. This book was released on 2002-03-21 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents contemporary analytical techniques for the determination of heavy metals in air particles, water, soil and biological samples. It details experimental studies to reduce the occurance of disease, remediate contaminated sites and establish acceptable range of oral intakes (AROI) guidelines.
Download or read book Metals in the Environment written by M.N.V. Prasad and published by CRC Press. This book was released on 2001-07-27 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of data on heavy metal accumulation, biomonitoring, toxicity and tolerance, metal contamination and pollution in the environment, and the importance of biodiversity for environmental monitoring and cleanup of metal-contaminated and polluted ecosystems. It advocates the use of bacteria, mycorrhizae, freshwater algae, salt marshes, bryo- an
Download or read book Effects of Sample Formulation on the Analysis of Heavy Metals by X Ray Fluorescence written by Sandra J. Steele and published by . This book was released on 1994 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: A key area of research in environmental studies is the identification and analysis of metals in soil. Methods of testing soil samples have, in the past, involved much time in the laboratory setting. This report describes the use of an x-ray fluorescence spectrometer (X-MET 840) that can be used in the field, and a method of creating standard samples for its calibration. The method was developed to decrease the time factor involved in calibrating the X-MET 840 and testing soil samples for heavy metal contaminants. Analysis by x-ray fluorescence has many advantages because of the ease of operation and portability of instrumentation. This report describes the effect of pelletizing samples upon reproducibility of analysis. X-ray fluorescence, Environmental, X- MET 840, Heavy metals.
Download or read book Determination of Metals in Natural Waters Sediments and Soils written by T. R. Crompton and published by Elsevier. This book was released on 2015-05-23 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determination of Metals in Natural Waters, Sediments and Soils provides analytic labs with a comprehensive overview of the various methods available for analysis of metals and serves as a manual to determine metal concentrations in different media such as natural waters, waste waters, sediments and soils. The book begins with a discussion of sampling techniques and preservation and then covers metals in rivers, surface ground and mineral waters and metals in aqueous precipitation. It concludes with detailed information on analysis of metals in sediments. Determination of Metals in Natural Waters, Sediments and Soils provides a foundation for informed action by environmental interest groups and regulators and a starting point for further study by graduate students, professionals, and researchers. - Includes all of the methods currently available to assess metals in water, sediments and soils - Covers metals in surface ground and mineral waters - Summarizes the strengths, weakness and precautions of different methods and provides a table summarizing the methods with reference citations
Download or read book Control and Fate of Atmospheric Trace Metals written by Jozef M. Pacyna and published by Springer Science & Business Media. This book was released on 1989-03-31 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing production of industrial goods, heat, and energy, as well as traffic, has led to the release of considerable amounts of toxic trace metals to the atmosphere. The result is elevated concentrations of toxic metals in local populations and eco systems. Recently the problem of atmospheric long-range transport of trace metals has also been recognized. Significant amounts of these pollutants are disposed and deposited both on regional and global scales. In the atmosphere they may influence the chemical reactions. Of particular interest is their catalytic effect on the oxidation prosesses taking place in water droplets or on the surface of wet particles (e. g. the oxidation of sulphur dioxide to sulphate), however, the main environmental impact starts when the atmospheric trace metals are deposited on ground and vegetation and subsequently brought into the water circulation. During the later years significant progress has been made in the development of equipment to reduce and control the atmospheric emissions of toxic trace metals. This particularly applies to electrostatic precipitators and wet scrubbers for the collection of fine particles. The main objective of the workshop was to survey present knowledge concerning the sources, atmospheric fluxes, sinks and chemical impact of the atmospheric trace metals, and to review the developments of emission control equipment and the perspectives to reduce the potential risks from toxic metals. During the first two days of the meeting, 15 invited review papers were presented.
Download or read book X ray Fluorescence Investigation of Heavy metal Contamination on Metal Surfaces in the Pilot Plant Complex Aberdeen Proving Ground Maryland written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A field program using a portable x-ray fluorescence (XRF) instrument was carried out to obtain data on loadings of RCRA-regulated heavy metals in paint on metal surfaces within the Pilot Plant Complex at Aberdeen Proving Ground, Maryland. Measured loadings of heavy metals were sufficiently small that they do not present problems for either human exposure or the disposition of building demolition rubble. An attempt to develop an external calibration of the XRF instrument for cadmium, chromium, and lead was unsuccessful. Significant substrate effects were observed for cadmium and chromium; for accurate results for these elements, it appears necessary to calibrate by using a sample of the actual metal substrate on which the paint is located. No substrate effects were observed for lead, but the use of lead L-shell x-ray emission lines in the instrument mode utilized in this study appears to result in a significant underestimate of the lead loading due to self-absorption of these emissions.
Download or read book Environmental Sampling and Analysis for Metals written by Maria Csuros and published by CRC Press. This book was released on 2016-04-19 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determination of metals is a major part of the work of environmental testing laboratories. EPA and DEP methodology releases provide information only for selected areas of metals sampling and analysis, and their language makes them unsuitable for teaching and training purposes. Environmental Sampling and Analysis for Metals is a comprehensive and easy-to-read text for laboratory technicians and analytical chemists who need a guide for analyzing metals in environmental samples and a reference for analytical and quality control procedures.The book provides both theoretical and practical applications in metals analysis of environmental samples and incorporates the latest in analytical techniques, instrumentation, and regulations. Topics include sample collection, preservation, step-by-step analytical procedures, complete QA/QC requirements, data validation, and more. It also provides an overview of the occurrence, source, and fate of metallic substances in the environment, as well as their control by regulations and standards. Furthermore, the authors provide guidelines to help you prepare and understand reports. The analytical methods presented in Environmental Sampling and Analysis for Metals will be useful to anyone who produces, uses, or evaluates analytical data, and will be a valuable tool in environmental education and training programs.
Download or read book Environmental Geochemistry of Potentially Toxic Metals written by Frederic R. Siegel and published by Springer. This book was released on 2010-11-30 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contamination of the earth's ecosystems by potentially toxie metalsl metalloids is a global problem. It will likely grow with our planet's increasing populations and their requirements for natural resources (e. g. , water, food, energy, waste-disposal sites) and metals-based goods. The health impacts of pollution from the ingestion of heavy metals/metalloids via respiration, food, and drinking water are most often long-term and manifest themselves in many ways. These include, for example, disminution of mental acuity, loss of motor control, critieal organ dysfunction, cancer, chronie illnesses and con comitant suffering, incapacitation, and finally death. The incidence and geographie distribution of disease (epidemiology) has been well-documented historieally and in modern times for toxic metals triggered diseases in humans, animals and vegetation. The role of the environmental geochemist and colleagues in environ mental sciences is to scientifically evaluate how to manage metalsl metalloids at sources or in-situ so as to alleviate or eliminate their negative health impacts on living populations. This is initiated by identifying sources and by developing models of the physieal, chem ieal and biologieal controls on mobilization, interaction, deposition and accumulation of potentially toxie metals/metalloids in source systems and earth ecosystems. Prom this knowledge base, environ mental scientists (e. g. , geologists, chemists, biologists, environmen tal engineers, physicists/meteorologists) work together to develop Preface VI concepts and technologieal methodologies to preserve global eco systems. Their concerted efforts are equally focussed on devising strategems to remediate ecosystems still carrying heavy metals/metal loids pollutant burdens from ancient and modern societies.
Download or read book Magnetic Susceptibility and XRF Analysis of Soils from Baton Rouge Louisiana written by Morgan Elise Canezaro and published by . This book was released on 2017 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heavy Metals In The Environment written by Bibudhendra Sarkar and published by CRC Press. This book was released on 2002-03-21 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents contemporary analytical techniques for the determination of heavy metals in air particles, water, soil and biological samples. It details experimental studies to reduce the occurance of disease, remediate contaminated sites and establish acceptable range of oral intakes (AROI) guidelines.
Download or read book Elemental Analysis in House Dust Using Handheld X ray Fluorescence written by Yang Jiao and published by . This book was released on 2012 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: House dust has been identified as a repository for many environmental pollutants, and these may arise from internal sources or be transported from external sources. Of particular interests in house dust are chemicals such as heavy metals and other non-metal elements that pose potential harm to human health. These chemicals are particularly harmful to the health of children. They have greater exposure to house dust and are more susceptible to the harmful effects of heavy metals. Typical analytical methods require analysis in the laboratory through laborious and expensive measures. In the present study, an easy and realtime analytical method was developed for trace elements in house dust, measured by a handheld energy dispersive X-ray fluorescence Analyzer (XRF). The concentration values of elements were compared with values from same dust sample previously measured by inductively coupled plasma mass spectrometer (ICP-MS). Measurement was made on house dust acquired by previous studies. In this study, 1.62 grams of house dust was the minimum weight, and the handheld XRF was sensitive enough to detect a total number of fourteen elements (Pb, Mo, Ni, Cr, Mn, Fe, Cu, Zn, Zr, Ag, Cd, Sn, Ba, and Hg), as compared to twenty-five elements detected by ICP-MS. After excluding outliers, data from the handheld XRF yielded a good prediction of concentration for the elements Fe, Pb, Mn and Zn, with regression R2 values of 0.86, 0.83, 0.80 and 0.74, respectively as compared with measurement made by ICP-MS. A moderate relationship between XRF and ICP-MS was found for Co and Cu, with regression R2 values of 0.56 and 0.52, respectively. The lowest correlation between XRF and ICP-MS was observed for Ni, Sn, Cr, Sb, Mo and Cd. In conclusion, data from this study indicates that a hand held XRF may serve as a useful and cost-effective analytical method for Fe, Pb, Mn, Zn, Co and Cu measurements in house dust. From a public health perspective, this provides a better picture for health risk assessment.
Download or read book Metals in the Environment written by and published by . This book was released on 2006 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remediation and Health Risks of Heavy Metal Contaminated Soils written by Qi Liao and published by Frontiers Media SA. This book was released on 2024-10-18 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is the essential foundation for human survival. However, soil pollution and environmental problems have become increasingly evident in recent years. In particular, heavy metal pollution at various sites poses a serious threat to human health and ecological safety, becoming a significant social issue worldwide. Greener and environmentally friendly remediation technologies, coupled with accurate evaluation of the potential risks, environmental impact, and human health of heavy metals in the soil have become urgently required. This Research Topic aims to gather the latest advancements in scientific research and applicable studies on (i) the potential risk or impact of recently problematic heavy metals (such as Sb, TI) and cases of combined heavy metal pollution; (ii) pollution formation, migration, and remediation of heavy metal in soil and groundwater; (iii) novel methods to treat and reduce heavy metals in contaminated sites; (iv) environmentally friendly remediation technology (such as enhanced bioremediation and in-situ remediation); and (v) assessment or modeling of the environmental or human health impact of heavy metals.
Download or read book Investigative Strategies for Lead Source Attribution at Superfund Sites Associated with Mining Activities written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-12-01 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Superfund program of the US Environmental Protection Agency (EPA) was created in the 1980s to address human-health and environmental risks posed by abandoned or uncontrolled hazardous-waste sites. Identification of Superfund sites and their remediation is an expensive multistep process. As part of this process, EPA attempts to identify parties that are responsible for the contamination and thus financially responsible for remediation. Identification of potentially responsible parties is complicated because Superfund sites can have a long history of use and involve contaminants that can have many sources. Such is often the case for mining sites that involve metal contamination; metals occur naturally in the environment, they can be contaminants in the wastes generated at or released from the sites, and they can be used in consumer products, which can degrade and release the metals back to the environment. This report examines the extent to which various sources contribute to environmental lead contamination at Superfund sites that are near lead-mining areas and focuses on sources that contribute to lead contamination at sites near the Southeast Missouri Lead Mining District. It recommends potential improvements in approaches used for assessing sources of lead contamination at or near Superfund sites.
Download or read book A Global Geochemical Database for Environmental and Resource Management written by IGCP Project 259 and published by . This book was released on 1995 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book stems from the multi-stage International Geochemical Mapping (IGM), an International Geological Correlation Programme (IGCP) project, to set up a global geochemical database on the distribution and quantities present of all 92 chemical elements in the surface of the earth. A comprehensive review and evaluation of methods for regional and national geochemical mapping and providing a recognized, global quantitative base on which local investigations can be built for particular environmental and economic problems concerning various aspects of land use.
