Author: Ivan C. SmithPublisher:
ISBN:
Category : Mercury
Languages : en
Pages : 72
Book Description
Control of Mercury Pollution in Sediments
Author: Ivan C. SmithPublisher:
ISBN:
Category : Mercury
Languages : en
Pages : 72
Book Description
Control of Mercury Pollution in Sediments
Author: Control of Mercury Pollution in Sediments
Author: Curtis C. HarlinPublisher:
ISBN:
Category : Mercury
Languages : en
Pages : 55
Book Description
Control of Mercury Contamination in Freshwater Sediments
Author: George FeickPublisher:
ISBN:
Category : Mercury
Languages : en
Pages : 172
Book Description
Mercury Pollution Control in Stream and Lake Sediments
Author: James D. SuggsPublisher:
ISBN:
Category : Getters
Languages : en
Pages : 56
Book Description
Mercury contamination enters streams and lakes from a variety of sources. It becomes sorbed onto the sediments where it resides in dynamic equilibrium with the dissolved species in the suprajacent water column. A means must be found to remove mercury from sediments without destroying the environment or otherwise upsetting the ecological balance. The problem of mercury immobilization and removal was addressed by evaluating a number of recoverable sulfur based getter systems. Examples of these are: Elemental sulfur deployed as a coating on a recoverable meshwork, and Thiourea type organic compounds dispersed in a recoverable matrix. In the course of these evaluations several improved getter system combinations became obvious and these were also included into the scope of this research. Only natural sediments and waters were used to prepare test aquaria in order to simulate natural conditions as nearly as possible.
Water and Sustainable Development
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309166071
Category : Science
Languages : en
Pages : 106
Book Description
Experts in the areas of water science and chemistry from the government, industry, and academic arenas discussed ways to maximize opportunities for these disciplines to work together to develop and apply simple technologies while addressing some of the world's key water and health problems. Since global water challenges cross both scientific disciplines, the chemical sciences have the ability to be a key player in improving the lives of billions of people around the world.
Control of Mercury Contamination in Freshwater Sediments
Author: George FeickPublisher:
ISBN:
Category : Mercury
Languages : en
Pages : 156
Book Description
Mercury in Stream Ecosystems
Author: Mark E. BrighamPublisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 8
Book Description
Mercury as a Global Pollutant
Author: Donald B. PorcellaPublisher: Springer Science & Business Media
ISBN: 9401101531
Category : Medical
Languages : en
Pages : 1291
Book Description
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.
Sand and Gravel Overlay for Control of Mercury in Sediments
Author: Leonard H. BongersPublisher:
ISBN:
Category : Mercury
Languages : en
Pages : 64
Book Description
The release of toxic mercurials by mercury-enriched river sediments was examined in the laboratory. Tests showed a release of 1 micro g of methylmercury per sq m, per day. Methylmercury occurred in sediments with low and with high organic content, in sediments with low and high cation exchange capacity, and in aerobic and anaerobic sediments. The release of toxic mercury could be prevented by a layer of sand, 6 cm in thickness, applied over the mercury-enriched sediments. Layers of fine or coarse gravel (6 cm deep) were as effective as sand. A slow release of metallic mercury occurred in aerobic sediments. The release was much faster in anaerobic sediments. Using ascorbate as an artificial electron donor, metallic mercury could be released at high rates from aerobic sediments as well. Ascorbate appeared to be a useful indicator of divalent and biologically accessible mercury. The laboratory investigations proved the soundness of the sand blanket approach. Costs are given.