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Literature DB >> 17782380

Elemental mercury evolution mediated by humic Acid.

J J Alberts, J E Schindler, R W Miller, D E Nutter.

Abstract

Elemental mercury is formed in aqueous solution by the chemical reduction of mercuric ion in the presence of humic acid. The reduction proceeds via first order kinetics (rate constant, 0.009 hour-(1)) and is depndent on pH. The reaction mechanism involves interaction of the ionic metal species with the free radical electrons of the humic acid.

Entities: Chemical

Year: 1974 PMID： 17782380 DOI： 10.1126/science.184.4139.895

Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728

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Cited

17 in total

1. A simple model for the non-enzymatic reduction and alkylation of mercuric salts in biological systems.

Authors: L F DeFilippis; C K Pallaghy
Journal: Bull Environ Contam Toxicol Date: 1975-07 Impact factor: 2.151

2. Adaptation of aquatic microbial communities to hg stress.

Authors: T Barkay
Journal: Appl Environ Microbiol Date: 1987-12 Impact factor: 4.792

Review 3. Principal biogeochemical factors affecting the speciation and transport of mercury through the terrestrial environment.

Authors: Mark C Gabriel; Derek G Williamson
Journal: Environ Geochem Health Date: 2004-12 Impact factor: 4.609

4. Laboratory Study of Chemical Speciation of Mercury in Lake Sediment and Water under Aerobic and Anaerobic Conditions.

Authors: O Regnell; A Tunlid
Journal: Appl Environ Microbiol Date: 1991-03 Impact factor: 4.792

5. Genes encoding mercuric reductases from selected gram-negative aquatic bacteria have a low degree of homology with merA of transposon Tn501.

Authors: T Barkay; M Gillman; C Liebert
Journal: Appl Environ Microbiol Date: 1990-06 Impact factor: 4.792

Elemental mercury evolution mediated by humic Acid.

1. A simple model for the non-enzymatic reduction and alkylation of mercuric salts in biological systems.

2. Adaptation of aquatic microbial communities to hg stress.

Review 3. Principal biogeochemical factors affecting the speciation and transport of mercury through the terrestrial environment.

4. Laboratory Study of Chemical Speciation of Mercury in Lake Sediment and Water under Aerobic and Anaerobic Conditions.

5. Genes encoding mercuric reductases from selected gram-negative aquatic bacteria have a low degree of homology with merA of transposon Tn501.

6. Environmental significance of the potential for mer(Tn21)-mediated reduction of Hg2+ to Hg0 in natural waters.

7. Accumulation of mercury by Azolla and its effect on growth.

8. Non-enzymatic reduction of organomercurial salts in biological systems.

9. Recent increase in mercury sedimentation in a forest lake attributable to peatland drainage.

10. Mercury reduction and complexation by natural organic matter in anoxic environments.