Mercury Hazards to Living Organisms - Chapter 11 pps

... anthropogenic total mercury emissions range from 2000 to 4000 metric tons per year, of which 460 tons are from small-scale gold mining (Porcella et al., 1995, 1997). Major contributors of mercury to the ... recovery mills. Mercury amalgamation © 2006 by Taylor & Francis Group, LLC © 2006 by Taylor & Francis Group, LLC 258 MERCURY HAZARDS TO LIVING ORGANISMS Table...

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... rates of mercury from sludge-amended soils into grains and animal forage, and need to be modified (Granato et al., 1995). © 2006 by Taylor & Francis Group, LLC 56 MERCURY HAZARDS TO LIVING ORGANISMS total ... DW) Germany, Elbe River, 1988, mercury- contaminated by chloralkali plants: Total mercury 30.0; max. 150.0 11 Methylmercury 2.7 11 Reference site, total mercury...

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... freshwater fish: Total mercury 2.82 FW 21 Methylmercury 1.69 FW 21 Diet (tuna fish) Muscle; total mercury vs. methylmercury 0.28 FW vs. 0.14 FW 21 Liver; total mercury vs. methylmercury 0.43 FW ... expected, organo- mercurial content was inversely related to total mercury content; thus, seal liver containing 174.0 mg total Hg/kg FW contained 1.2% organomercury, seal kidney with 6.4 mg...

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... victim autopsied 26 years postexposure vs. control: Liver: Total mercury 0.54 FW vs. 0.64 FW 15, 16 Methylmercury 0.04 FW vs. 0.07 FW 15, 16 (continued) 220 MERCURY HAZARDS TO LIVING ORGANISMS 67.2 ... 52.0 mg total Hg/kg) mercury concentrations. The mercury- resistant Pseudomonas strains, when compared to Bacillus strains, were more resistant to inorganic mercury, met...

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... LLC 294 MERCURY HAZARDS TO LIVING ORGANISMS especially methylmercury, are always more toxic than inorganic mercury compounds. Numerous biological and abiotic factors modify the toxicity of mercury ... inorganic mercury poisoning, and mercury- protectant drugs — including thiamin, selenium-, sulfur-, tellurium-, and other Group VI derivatives — to guard against organo- mercu...

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... — mainly in the form of mercury vapor — and deposition of mercury back onto land and water. Oceanic effluxes of mercury are tied to equatorial upwelling and phytoplankton activity and may significantly ... of mercury is proportional to primary production in the world’s oceans, oceanic phytoplankton activity represents about 36.0% of the yearly mercury flow to the atmo- sphere, o...

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... Group, LLC 28 MERCURY HAZARDS TO LIVING ORGANISMS later in Chapter 6 and Chapter 12. At this time, however, many authorities argue that mercury sele- nium interactions are the key to methylmercury ... microorganisms are able to convert inorganic and organic forms of mercury into the highly toxic methylmercury or dimethylmercury has made it clear that any form of mercury...

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... developing brain to methylmercury is due to placental transfer of lipophilic methylmercury to the central nervous system © 2006 by Taylor & Francis Group, LLC 40 MERCURY HAZARDS TO LIVING ORGANISMS (CNS) ... LLC 38 MERCURY HAZARDS TO LIVING ORGANISMS Inhaled mercury vapor (Hg o ) is readily oxidized via the catalase–H 2 O 2 complex and converted to Hg 2+ , m...

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... DW 116 Burnt 2.3 DW 116 Undisturbed 0.9 DW 116 Yellow perch, Perca flavescens: Clear-cut 1.3 DW 116 Burnt 0.8 DW 116 Undisturbed 0.8 DW 116 Canada, Waibigoon River system; Ontario; mercury- contaminated ... eaters living near Oyabe River (daily intake of 194.0 µg total mercury including 55.0 µg methylmercury) 17.2 FW vs. 11. 2 FW 4 Japan; crew of tuna fishing boat (daily in...

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... 168 MERCURY HAZARDS TO LIVING ORGANISMS REFERENCES Abbasi, S.A. and R. Soni. 1983. Stress-induced enhancement of reproduction in earthworms Octochaetus pattoni exposed to chromium (VI) and mercury ... immediately prior to death were 26.8–30.3 mg/L 6 © 2006 by Taylor & Francis Group, LLC 160 MERCURY HAZARDS TO LIVING ORGANISMS ciliate protozoan, Uronema nigricans...

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