Download or read book Field Analysis of Mercury in Water Sediment and Soil Using Static Headspace Analysis written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We developed a field screening method for rapid analysis of Hg in water, soil, and sediment, which can be applied cost-effectively at Hg-contaminated sites. Samples are chemically pretreated in ordinary containers, followed by analysis of the sample headspace Hg vapor using a portable commercial analyzer. Hg in water samples is reduced directly by the addition of stannous chloride, while solids are first digested with aqua regia or piranha solution to liberate the Hg from the solids. Aided by vigorous agitation after adding the reductant, the elemental Hg partitions between solution and headspace according to Henry's Law. The method requires about 2 and 15 minutes to complete for water and solids, respectively. The method provides very useful detection limits for water (0.1[mu]g/L) and solids (2-3[mu]g/g). Intercomparisons with laboratory-analyzed environmental samples show good agreement.

Download or read book Mercury as a Global Pollutant written by Donald B. Porcella and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1291 pages. Available in PDF, EPUB and Kindle. Book excerpt: ACKNOWLEDGEMENTS xiv PART I MERCURY AND HUMAN HEALTH B. WHEATLEY and S. PARADIS I Exposure of Canadian Aboriginal Peoples to Methylmercury 3-11 M. GIRARD and C. DUMONT I Exposure of James Bay Cree to Methylmercury during Pregnancy for the Years 1983-91 13-19 M. RICHARDSON, M. MITCHELL, S. COAD and R. RAPHAEL I Exposure to Mercury in Canada: A Multimedia Analysis 21-30 M. RICHARDSON, M. EGYED and D. J. CURRIE I Human Exposure to Mercury may Decrease as Acidic Deposition Increases 31-39 L. E. FLEMING, S. WATKINS, R. KADERMAN, B. LEVIN, D. R. AVYAR, M. BIZZIO, D. STEPHENS and J. A. BEAN I Mercury Exposure in Humans through Food Consumption from the Everglades of Florida 41-48 J. M. GEARHART, H. J. CLEWELL III, K. S. CRUMP, A. M. SHIPP and A. SILVERS I Pharmacokinetic Dose Estimates of Mercury in Children and Dose-Response Curves of Performance Tests in a Large Epidemiological Study 49-58 I. SKARE I Mass Balance and Systemic Uptake of Mercury Released from Dental Amalgam Fillings 59-67 J. DELLINGER, N. KMIECIK, S. GERSTENBERGER and H. NGU I Mercury Contamina tion of Fish in the Ojibwa Diet: I. Walleye Fillets and Skin-On versus Skin-Off Sampling 69-76 J. DELLINGER, L. MALEK and M. BEATTIE I Mercury Contamination of Fish in the Ojibwa Diet: II. Sensory Evoked Responses in Rats Fed Walleye 77-83 H. AKAGI, O. MALM, F. J. P. BRANCHES, Y. KINJO, Y. KASHIMA, J. R. D. GUIMARAES, R. B. OLIVEIRA, K. HARAGUCHI, W. C. PFEIFFER, Y.

Download or read book Field Measurement Technologies for Mercury in Soil Sediment written by and published by DIANE Publishing. This book was released on with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Health Perspectives written by and published by . This book was released on 1993 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Analytical Techniques for Mercury in Soils Technology Evaluation Topical Report November 1994 March 1997 written by and published by . This book was released on 1998 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the evaluation of the four field analytical techniques for mercury detection in soils, namely (1) an anodic stripping voltametry technique (ASV) developed and tested by General Electric Corporation; (2) a static headspace analysis (SHSA) technique developed and tested by Dr. Ralph Turner of Oak Ridge National Laboratory; (3) the BiMelyze{reg_sign} Mercury Immunoassay (Bio) developed and tested by BioNebraska, Inc.; and (4) a transportable x-ray fluorescence (XRF) instrument/technique developed and tested by Spectrace, Inc.

Download or read book Mercury in Water written by and published by . This book was released on 1975 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biomedical Research and the Environment written by John T. Grupenhoff and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field and Laboratory Methods Used by the Geological Survey of Canada in Geochemical Surveys written by I. R. Jonasson and published by . This book was released on 1973 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods and equipment used by the Geochemistry Section, Geological Survey of Canada for the rapid, routine determination of mercury by cold vapour atomic absorption in various materials of geological interest, viz; rocks, soils, sediments, ores and waters, are described in detail. The range of mercury contents which can be covered for solid samples is 2 r'lg to 1000 ng Hg; i. e. 4 ng/g to 2000 ng/g for 0. 500 g samples. The useful range of concentration which can be covered for water samples, including snow, is 0. 01 ng/g to 2. 5 ng/g. Coefficients of variation (arithmetic) for all samples have been calculated. In the range of Hg content: 2-25 ng, CV is 25%; 50-100 ng, CV is 15%; 2150 ng, CV is 10% for example. Negative interferences by a number of metallic elements, in the chemical form in which they exist under the conditions of the method, have been quantitatively investigated. Au, Pd, Pt, Te at microgram levels, interfere significantly when precipitated in elemental form. Se, Cu and Ag which do not precipitate as metals, do not interfere, even at mg levels. Finely powdered sulphur, 215 mg, causes significant interference to the expected Hg signal. Because the levels at which most metals interfere are high relative to their natural abundances, only Te content is an important factor to be considered in routine geochemical analyses for mercury.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1996 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mercury in Water written by Water Resources Scientific Information Center and published by . This book was released on 1979 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Organometallics in Environment and Toxicology written by Astrid Sigel and published by Walter de Gruyter GmbH & Co KG. This book was released on 2015-07-24 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 7, devoted to the vital and rapidly expanding research area around metal-carbon bonds (see also MILS-6), focuses on the environment. With more than 2500 references, 35 tables, and nearly 50 illustrations, many of these in color, it is an essential resource for scientists working in the wide range from organometallic chemistry, inorganic biochemistry, environmental toxicology all the way through to physiology and medicine. In 14 stimulating chapters, written by 29 internationally recognized experts, Organometallics in Environment and Toxicology highlights in an authoritative and timely manner environmental cycles of elements involving organometal(loid) compounds as well as the analytical determination of such species. This book examines methane formation involving the nickel coenzyme F430, as well as the organometal(loid) compounds formed by tin, lead, arsenic, antimony, bismuth, selenium, tellurium, and mercury. In addition, it deals with the environmental bioindication, biomonitoring, and bioremediation of organometal(loid)s, and it terminates with methylated metal(loid) species occurring in humans by evaluating assumed and proven health effects caused by these compounds.

Download or read book World Environmental Research Directory written by Susan Farrell and published by CRC Press. This book was released on 1998 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alerta bibliogr fico written by Companhia de Tecnologia de Saneamento Ambiental (São Paulo, Brazil). Biblioteca and published by . This book was released on 1995 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Methods for the Examination of Water and Wastewater written by American Public Health Association and published by . This book was released on 1981 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Historical and Current Trends in Mercury Deposition to New Jersey Aquatic Systems Through Analysis of Sediment soil Cores written by Amy E. Kroenke and published by . This book was released on 2002 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: