The Effects of Dissolved Organic Matter on Mercury Biogeochemistry

Environmental Chemistry and Toxicology of Mercury

Volumn , Issue , 2011, Pages 259-292

  Gerbig, Chase ^a   Ryan, Joseph N ^a   Aiken, George R ^b  

^a UCB 450   (United States)

^b U S GEOLOGICAL SURVEY   (United States)

Author keywords

DOM on Hg biogeochemistry; DOM on Hg distributions; DOM, Hg mineral precipitation

Indexed keywords

EID: 84876291264     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9781118146644.ch8     Document Type: Chapter

References (139)

1. Aiken GR. Evaluation of ultrafiltration for determining molecular weight of fulvic acid. Environ Sci Technol 1984;18:978-981.
2. Aiken G, Cotsaris E. Soil and hydrology: their effect on NOM. J Am Water Works Assoc 1995;87:36-45.
3. Aiken GR, Leenheer JA. Isolation and chemical characterization of dissolved and colloidal organic matter. Chem Ecol 1993;8:135-151.
4. Aiken GR, McKnight DM, Thorn KA, Thurman EM. Isolation of hydrophilic organicacids from water using nonionic macroporous resins. Org Geochem 1992;18:567-573.
5. Amirbahman A, Reid AL, Haines TA, Kahl JS, Arnold C. Association of methylmercury with dissolved humic acids. Environ Sci Technol 2002;36:690-695.
6. Andren AW, Harriss RC. Observations on the association between mercury and organic matter dissolved in natural waters. Geochim Cosmochim Acta 1975;39:1253-1258.
7. Babiarz CL, Hurley JP, Hoffmann SR, Andren AW, Shafer MM, Armstrong DE. Partitioning of total mercury and methylmercury to the colloidal phase in freshwaters. Environ Sci Technol 2001;35:4773-4782.
8. Balogh SJ, Nollet YH, Swain EB. Redox chemistry in Minnesota streams during episodes of increased methylmercury discharge. Environ Sci Technol 2004;38:4921-4927.
9. Balogh SJ, Swain EB, Nollet YH. Elevated methylmercury concentrations and loadings during flooding in Minnesota rivers. Sci Total Environ 2006;368:138-148.
10. Barkay T, Gillman M, Turner RR. Effects of dissolved organic carbon and salinity on bioavailability of mercury. Appl Environ Microbiol 1997;63:4267-4271.
11. Barnett MO, Harris LA, Turner RR, Stevenson RJ, Henson TJ, Melton RC, Hoffman DP. Formation of mercuric sulfide in soil. Environ Sci Technol 1997;31:3037-3043.
12. Barnett MO, Turner RR, Singer PC. Oxidative dissolution of metacinnabar (ß-HgS) by dissolved oxygen. Appl Geochem 2001;16:1499-1512.
13. Basinger MA, Casas JS, Jones MM, Weaver AD. Structural requirements for Hg(II) antidotes. J Inorg Nucl Chem 1981;43:1419-1425.
14. Beldowski J, Pempkowiak J. Horizontal and vertical variabilities of mercury concentration and speciation in sediments of the Gdansk Basin, Southern Baltic Sea. Chemosphere 2003;52:645-654.
15. Bell AMT, Charnock JM, Helz GR, Lennie AR, Livens FR, Mosselmans JFW, Pattrick RAD, Vaughan DJ. Evidence for dissolved polymeric mercury(II)-sulfur complexes? Chem Geol 2007;243:122-127.
16. Benner R, Biddanda B, Black B, McCarthy M. Abundance, size distribution, and stable carbon and nitrogen isotopic compositions of marine organic matter isolated by tangential-flow ultrafiltration. Mar Chem 1997;57:243-263.
17. Benoit JM, Mason RP, Gilmour CC. Estimation of mercury-sulfide speciation in sediment pore waters using octanol-water partitioning and implications for availability to methylating bacteria. Environ Toxicol Chem 1999;18:2138-2141.
18. Benoit JM, Mason RP, Gilmour CC, Aiken GR. Constants for mercury binding by dissolved organic matter isolates from the Florida Everglades. Geochim Cosmochim Acta 2001;65:4445-4451.
19. Black FJ, Bruland KW, Flegal AR. Competing ligand exchange-solid phase extraction method for the determination of the complexation of dissolved inorganic mercury(II) in natural waters. Anal Chim Acta 2007;598:318-333.
20. Bloom NS, Preus E, Katon J, Hiltner M. Selective extractions to assess the biogeochemically relevant fractionation of inorganic mercury in sediments and soils. Anal Chim Acta 2003;479:233-248.
21. Boszke L, Kowalski A, Astel A, Barański A, Gworek B, Siepak J. Mercury mobility and bioavailability in soil from contaminated area. Environ Geol 2008;55:1075-1087.
22. Brigham ME, Duris JW, Wentz DA, Button DT, Chasar LC. Total mercury, methylmercury, and ancillary water-quality and streamflow data for selected streams in Oregon, Wisconsin, and Florida, 2002-2006, U.S. Geological Survey Data Series 341. 2008. p 11.
23. Brigham ME, Wentz DA, Aiken GR, Krabbenhoft DP. Mercury cycling in stream ecosystems. 1. Water column chemistry and transport. Environ Sci Technol 2009;43:2720-2725.
24. Burkstaller JE, McCarty PL, Parks GA. Oxidation of cinnabar by Fe(III) in acid mine waters. Environ Sci Technol 1975;9:676-678.
25. Cai Y, Jaffe R, Jones RD. Interactions between dissolved organic carbon and mercury species in surface waters of the Florida Everglades. Appl Geochem 1999;14:395-407.
26. Casagrande DJ, Idowu G, Friedman A, Rickert P, Siefert K, Schlenz D. H2S incorporation in coal precursors: Origins of organic sulphur in coal. Nature 1979;282:599-600.
27. Charnoc27k JM, Moyes LN, Pattrick RAD, Mosselmans JFW, Vaughan DJ, Livens FR. The structural evolution of mercury sulfide precipitate: an XAS and XRD study. Am Mineral 2003;88:1197-1203.
28. Cheam V, Gamble DS. Metal-fulvic acid chelation equilibrium in aqueous NaNO3 solution-Hg(II), Cd(II), and Cu(II) fulvate complexes. Can J Soil Sci 1974;54:413-417.
29. Choe K-Y, Gill GA. Isolation of colloidal monomethyl mercury in natural waters using cross-flow ultrafiltration techniques. Mar Chem 2001;76:305-318.
30. Cory RM, McKnight DM. Fluorescence spectroscopy reveals ubiquitous presence of oxidized and reduced quinones in dissolved organic matter. Environ Sci Technol 2005;39:8142-8149.
31. Cronan CS, Aiken GR. Chemistry and transport of soluble humic substances in forested watersheds of the Adirondack Park, New York. Geochim Cosmochim Acta 1985;49:1697-1705.
32. Deonarine A, Hsu-Kim H. Precipitation of mercuric sulfide nanoparticles in NOMcontaining water: implications for the natural environment. Environ Sci Technol 2009;43:2368-2373.
33. Dittman JA, Shanley JB, Driscoll CT, Aiken GR, Chalmers AT, Towse JE, Selvendiran P. Mercury dynamics in relation to dissolved organic carbon concentration and quality during high flow events in three northeastern U.S. streams. Water Resour Res 2010;46: W07522.
34. Dittmar T, Koch B, Hertkorn N, Kattner G. A simple and efficient method for the solid-phase extraction of dissolved organic matter (SPE-DOM) from seawater. Limnol Oceanogr: Methods 2008;6:230-235.
35. Drexel RT, Haitzer M, Ryan JN, Aiken GR, Nagy KL. Mercury(II) sorption to two Florida Everglades peats: evidence for strong and weak binding and competition by dissolved organic matter released from the peat. Environ Sci Technol 2002;36:4058-4064.
36. Dyrssen D, Wedborg M. The sulphur-mercury(II) system in natural waters. Water Air Soil Pollut 1991;56:507-519.
37. Fellman JB, Hood E, Spencer RGM. Fluorescence spectroscopy opens new windows into dissolved organic matter dynamics in freshwater ecosystems: A review. Limnol Oceanogr 2010;55:2452-2462.
38. Findlay S. Bacterial response to variation in dissolved organic matter. In: Findlay SEG, Sinsabaugh RL, editors. Aquatic ecosystems: interactivity of dissolved organic matter. Burlington: Academic Press; 2003. p 363-379.
39. Fitzgerald WF, Lyons WB. Organic mercury compounds in coastal waters. Nature 1973;242:452-453.
40. Gasper JD, Aiken GR, Ryan JN. A critical review of three methods used for the measurement of mercury (Hg2+) -dissolved organic matter stability constants. Appl Geochem 2007;22:1583-1597.
41. Gilbert B, Banfield JF. Molecular-scale processes involving nanoparticulate minerals in biogeochemical systems. Rev Mineral Geochem 2005;59:109-155.
42. Green SA, Blough NV. Optical absorption and fluorescence properties of chromophoric dissolved organic matter in natural waters. Limnol Oceanogr 1994;39:1903-1916.
43. Grigal DF. Inputs and outputs of mercury from terrestrial watersheds: a review. Environ Rev 2002;10:1-39.
44. Gu BH, Schmitt J, Chen ZH, Liang LY, McCarthy JF. Adsorption and desorption of natural organic-matter on iron-oxide-mechanisms and models. Environ Sci Technol 1994;28:38-46.
45. Haitzer M, Aiken GR, Ryan JN. Binding of mercury(II) to dissolved organic matter: The role of the mercury-to-DOM concentration ratio. Environ Sci Technol 2002;36:3564-3570.
46. Haitzer M, Aiken GR, Ryan JN. Binding of mercury(II) to aquatic humic substances: Influence of pH and source of humic substances. Environ Sci Technol 2003;37:2436-2441.
47. Hammerschmidt CR, Fitzgerald WF. Methylmercury cycling in sediments on the continental shelf of southern New England. Geochim Cosmochim Acta 2006;70:918-930.
48. Han SH, Gill GA. Determination of mercury complexation in coastal and estuarine waters using competitive ligand exchange method. Environ Sci Technol 2005;39:6607-6615.
49. Han F, Shiyab S, Chen J, Su Y, Monts D, Waggoner C, Matta F. Extractability and bioavailability of mercury from a mercury sulfide contaminated soil in Oak Ridge, Tennessee, USA. Water Air Soil Pollut 2008;194:67-75.
50. Hatcher PG, Dria KJ, Kim S, Frazier SW. Modern analytical studies of humic substances. Soil Sci 2001;166:770-794.
51. He Z, Traina SJ, Weavers LK. Sonochemical dissolution of cinnabar (a-HgS). Environ Sci Technol 2007;41:773-778.
52. Hedberg Y, Herting G, Wallinder IO. Risks of using membrane filtration for trace metal analysis and assessing the dissolved metal fraction of aqueous media-A study on zinc, copper and nickel. Environ Pollut 2011;159:1144-1150.
53. Heitmann T, Blodau C. Oxidation and incorporation of hydrogen sulfide by dissolved organic matter. Chem Geol 2006;235:12-20.
54. Helms JR, Stubbins A, Ritchie JD, Minor EC, Kieber DJ, Mopper K. Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter. Limnol Oceanogr 2008;53:955-969.
55. Hesterberg D, Chou JW, Hutchison KJ, Sayers DE. Bonding of Hg(II) to reduced organic, sulfur in humic acid as affected by S/Hg ratio. Environ Sci Technol 2001;35:2741-2745.
56. Hines ME, Faganeli J, Adatto I, Horvat M. Microbial mercury transformations in marine, estuarine and freshwater sediment downstream of the Idrija Mercury Mine, Slovenia. Appl Geochem 2006;21:1924-1939.
57. Hintelmann H, Welbourn PM, Evans RD. Binding of methylmercury compounds by humic and fulvic acids. Water Air Soil Pollut 1995;80:1031-1034.
58. Hintelmann H, Welbourn PM, Evans RD. Measurement of complexation of methylmercury(II) compounds by freshwater humic substances using equilibrium dialysis. Environ Sci Technol 1997;31:489-495.
59. Hinton MJ, Schiff SL, English MC. Sources and flowpaths of dissolved organic carbon during storms in two forested watersheds of the Precambrian Shield. Biogeochem 1998;41:175-197.
60. Hoch AR, Reddy MM, Aiken GR. Calcite crystal growth inhibition by humic substances with emphasis on hydrophobic acids from the Florida Everglades. Geochim Cosmochim Acta 2000;64:61-72.
61. Holley EA, James McQuillan A, Craw D, Kim JP, Sander SG. Mercury mobilization by oxidative dissolution of cinnabar (a-HgS) and metacinnabar (ß-HgS). Chem Geol 2007;240:313-325.
62. Holloway JM, Goldhaber MB, Scow KM, Drenovsky RE. Spatial and seasonal variations in mercury methylation and microbial community structure in a historic mercury mining area, Yolo County, California. Chem Geol 2009;267:85-95.
63. Honeyman BD, Santschi PH. A Brownian-pumping model for oceanic trace metal scavenging: Evidence from Th isotopes. J Mar Res 1989;47:951-992.
64. Horzempa LM, Helz GR. Controls on the stability of sulfide sols: colloidal covellite as an example. Geochim Cosmochim Acta 1979;43:1645-1650.
65. Hsu H, Sedlak DL. Strong Hg(II) complexation in municipal wastewater effluent and surface waters. Environ Sci Technol 2003;37:2743-2749.
66. Hurley JP, Krabbenhoft DP, Cleckner LB, Olson ML, Aiken GR, Rawlik Jr PS. System controls on the aqueous distribution of mercury in the northern Florida Everglades. Biogeochem 1998;40:293-311.
67. Jay JA, Morel FMM, Hemond HF. Mercury speciation in the presence of polysulfides. Environ Sci Technol 2000;34:2196-2200.
68. Jokic A, Cutler JN, Anderson DW, Walley FL. Detection of heterocyclic N compounds in whole soils using N-XANES spectroscopy. Can J Soil Sci 2004;84:291-293.
69. Karger BL, Snyder LR, Horvath C. An Introduction to Separation Science. 1st ed. New York: Wiley-Interscience; 1973.
70. Karlsson T, Skyllberg U. Bonding of ppb levels of methyl mercury to reduced sulfur groups in soil organic matter. Environ Sci Technol 2003;37:4912-4918.
71. Khwaja AR, Bloom PR, Brezonik PL. Binding constants of divalent mercury (Hg2+ in soil humic acids and soil organic matter. Environ Sci Technol 2006;40:844-849.
72. Khwaja AR, Bloom PR, Brezonik PL. Binding strength of methylmercury to aquatic NOM. Environ Sci Technol 2010;44:6151-6156.
73. Kim CS, Bloom NS, Rytuba JJ, Brown Jr GE. Mercury speciation by X-ray absorption fine structure spectroscopy and sequential chemical extractions: A comparison of speciation methods. Environ Sci Technol 2003;37:5102-5108.
74. Kim CS, Brown GE, Rytuba JJ. Characterization and speciation of mercury-bearing mine wastes using X-ray absorption spectroscopy. Sci Total Environ 2000;261:157-168.
75. Labrenz M, Druschel GK, Thomsen-Ebert T, Gilbert B, Welch SA, Kemner KM, Logan GA, Summons RE, Stasio GD, Bond PL, Lai B, Kelly SD, Banfield JF. Formation of sphalerite (ZnS) deposits in natural biofilms of sulfate-reducing bacteria. Science 2000;290:1744-1747.
76. Lamborg CH, Fitzgerald WF, Skoog A, Visscher PT. The abundance and source of mercury-binding organic ligands in Long Island Sound. Mar Chem 2004;90:151-163.
77. Lamborg CH, Tseng CM, Fitzgerald WF, Balcom PH, Hammerschmidt CR. Determination of the mercury complexation characteristics of dissolved organic matter in natural waters with "reducible Hg" titrations. Environ Sci Technol 2003;37:3316-3322.
78. Lechler PJ, Miller JR, Hsu L-C, Desilets MO. Mercury mobility at the Carson River Superfund Site, west-central Nevada, USA: interpretation of mercury speciation data in mill tailings, soils, and sediments. J Geochem Explor 1997;58:259-267.
79. Lennie AR, Charnock JM, Pattrick RAD. Structure of mercury(II)-sulfur complexes by EXAFS spectroscopic measurements. Chem Geol 2003;199:199-207.
80. Liu G, Cai Y, Philippi T, Kalla P, Scheidt D, Richards J, Scinto L, Appleby C. Distribution of total and methylmercury in different ecosystem compartments in the Everglades: Implications for mercury bioaccumulation. Environ Pollut 2008;153:257-265.
81. Lovgren L, Sjoberg S. Equilibrium approaches to natural-water systems-7. Complexation reactions of copper(II), cadmium(II) and mercury(II) with dissolved organic-matter in a concentrated bog-water. Water Res 1989;23:327-332.
82. Lowry GV, Shaw S, Kim CS, Rytuba JJ, Brown GE. Macroscopic and microscopic observations of particle-facilitated mercury transport from New Idria and Sulphur Bank mercury mine tailings. Environ Sci Technol 2004;38:5101-5111.
83. Lu XQ, Maie N, Hanna JV, Childers DL, Jaffe R. Molecular characterization of dissolved organic matter in freshwater wetlands of the Florida Everglades. Water Res 2003;37:2599-2606.
84. Ma H, Allen HE, Yin Y. Characterization of isolated fractions of dissolved organic matter from natural waters and a wastewater effluent. Water Res 2001;35:985-996.
85. Maie N, Jaffé R, Miyoshi T, Childers D. Quantitative and qualitative aspects of dissolved organic carbon leached from senescent plants in an oligotrophic wetland. Biogeochem 2006;78:285-314.
86. Marvin-DiPasquale M, Lutz MA, Brigham ME, Krabbenhoft DP, Aiken GR, Orem WH, Hall BD. Mercury cycling in stream ecosystems. 2. Benthic methylmercury production and bed sediment-pore water partitioning. Environ Sci Technol 2009;43:2726-2732.
87. Mason RP, Sullivan KA. Mercury and methylmercury transport through an urban watershed. Water Res 1998;32:321-330.
88. McKnight DM, Aiken GR. Sources and age of aquatic humic substances. In: Hessen DO, Tranvik LJ, editors. Aquatic humic substances: ecology and biogeochemistry (ecological studies v. 133). Berlin, Germany: Springer-Verlag; 1998. p 9-40.
89. McKnight DM, Bencala KE, Zellweger GW, Aiken GR, Feder GL, Thorn KA. Sorption of dissolved organic-carbon by hydrous aluminum and iron-oxides occurring at the confluence of Deer Creek with the Snake River, Summit County, Colorado. Environ Sci Technol 1992;26:1388-1396.
90. Mierle G, Ingram R. The role of humic substances in the mobilization of mercury from watersheds. Water Air Soil Pollut 1991;56:349-357.
91. Mikac N, Foucher D, Niessen S, Lojen S, Fischer JC. Influence of chloride and sediment matrix on the extractability of HgS (cinnabar and metacinnabar) by nitric acid. Anal Bioanal Chem 2003;377:1196-1201.
92. Miller CL, Mason RP, Gilmour CC, Heyes A. Influence of dissolved organic matter on the complexation of mercury under sulfidic conditions. Environ Toxicol Chem 2007;26:624-633.
93. Miskimmin BM, Rudd JWM, Kelly CA. Influence of dissolved organic carbon, pH, and microbial respiration rates on mercury methylation and demethylation in lake water. Can J Fish Aquat Sci 1992;49:17-22.
94. Moran MA, Covert JS. Photochemically mediated linkages between dissolved organic matter and bacterioplankton. In: Findlay SEG, Sinsabaugh RL, editors. Aquatic ecosystems: interactivity of dissolved organic matter. Burlington: Academic Press; 2003. p 243-262.
95. Moreau JW, Weber PK, Martin MC, Gilbert B, Hutcheon ID, Banfield JF. Extracellular proteins limit the dispersal of biogenic nanoparticles. Science 2007;316:1600-1603.
96. Morel FMM, Kraepiel AML, Amyot M. The chemical cycle and bioaccumulation of mercury. Annu Rev Ecol Syst 1998;29:543-566.
97. National Institute of Standards and Technology (NIST). NIST Critically selected stability constants of metal complexes database. version 8.0. Gaithersburg (MD): NIST; 2004.
98. O'Driscoll NJ, Evans RD. Analysis of methyl mercury binding to freshwater humic and fulvic acids by gel permeation chromatography/hydride generation ICP-MS. Environ Sci Technol 2000;34:4039-4043.
99. Paquette K, Helz G. Solubility of cinnabar (red HgS) and implications for mercury speciation in sulfidic waters. Water Air Soil Pollut 1995;80:1053-1056.
100. Paquette KE, Helz GR. Inorganic speciation of mercury in sulfidic waters: The importance of zero-valent sulfur. Environ Sci Technol 1997;31:2148-2153.
101. Perdue EM. Chemical composition, structure and metal binding properties. In: Hessen DO, Tranvik LJ, editors. Aquatic humic substances: ecology and biogeochemistry (Ecological Studies v. 133). Berlin, Germany: Springer-Verlag; 1998. p 41-62.
102. Potter RW, Barnes HL. Phase relations in the binary Hg-S. Am Mineral 1978;63:1143-1152.
103. Prietzel J, Thieme J, Salome M, Knicker H. Sulfur K-edge XANES spectroscopy reveals differences in sulfur speciation of bulk soils, humic acid, fulvic acid, and particle size separates. Soil Biol Biochem 2007;39:877-890.
104. Qian J, Skyllberg U, Frech W, Bleam WF, Bloom PR, Petit PE. Bonding of methyl mercury to reduced sulfur groups in soil and stream organic matter as determined by x-ray absorption spectroscopy and binding affinity studies. Geochim Cosmochim Acta 2002;66:3873-3885.
105. Qualls RG, Richardson CJ. Factors controlling concentration, export, and decomposition of dissolved organic nutrients in the Everglades of Florida. Biogeochem 2003;62:197-229.
106. Ravichandran M, Aiken GR, Reddy MM, Ryan JN. Enhanced dissolution of cinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades. Environ Sci Technol 1998;32:3305-3311.
107. Ravichandran M, Aiken GR, Ryan JN, Reddy MM. Inhibition of precipitation and aggregation of metacinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades. Environ Sci Technol 1999;33:1418-1423.
108. Rossotti FJC, Whewell RJ. Structure and stability of carboxylate complexes. Part 16. Stability constants of some mercury(II) carboxylates. J Chem Soc Dalton Trans 1977;12:1223-1229.
109. Rytuba JJ. Mercury mine drainage and processes that control its environmental impact. Sci Total Environ 2000;260:57-71.
110. Saraceno JF, Pellerin BA, Downing BD, Boss E, Bachand PAM, Bergamaschi BA. Highfrequency in situ optical measurements during a storm event: Assessing relationships between dissolved organic matter, sediment concentrations, and hydrologic processes. J Geophys Res 2009;114: G00F09.
111. Schaefer JK, Morel FMM. High methylation rates of mercury bound to cysteine by Geobacter sulfurreducens. Nat Geosci 2009;2:123-126.
112. Schwarzenbach G, Schellenberg M. Die komplexchemie des methylquecksilber-kations. Helv Chim Acta 1965;48:28-46.
113. Shanley JB, Alisa Mast M, Campbell DH, Aiken GR, Krabbenhoft DP, Hunt RJ, Walker JF, Schuster PF, Chalmers A, Aulenbach BT, Peters NE, Marvin-DiPasquale M, Clow DW, Shafer MM. Comparison of total mercury and methylmercury cycling at five sites using the small watershed approach. Environ Pollut 2008;154:143-154.
114. Skyllberg U, Bloom PR, Qian J, Lin CM, Bleam WF. Complexation of mercury(II) in soil organic matter: EXAFS evidence for linear two-coordination with reduced sulfur groups. Environ Sci Technol 2006;40:4174-4180.
115. Skyllberg U, Qian J, Frech W, Xia K, Bleam WF. Distribution of mercury, methyl mercury and organic sulphur species in soil, soil solution and stream of a boreal forest catchment. Biogeochem 2003;64:53-76.
116. Skyllberg U, Xia K, Bloom PR, Nater EA, Bleam WF. Binding of mercury(II) to reduced sulfur in soil organic matter along upland-peat soil transects. J Environ Qual 2000;29:855-865.
117. Sleighter RL, Liu Z, Xue J, Hatcher PG. Multivariate statistical approaches for the characterization of dissolved organic matter analyzed by ultrahigh resolution mass spectrometry. Environ Sci Technol 2010;44:7576-7582.
118. Slowey AJ. Rate of formation and dissolution of mercury sulfide nanoparticles: the dual role of natural organic matter. Geochim Cosmochim Acta 2010;74:4693-4708.
119. Slowey AJ, Rytuba JJ, Brown GE. Speciation of mercury and mode of transport from placer gold mine tailings. Environ Sci Technol 2005;39:1547-1554.
120. Solomon D, Lehmann J, Martinez CE. Sulfur K-edge XANES spectroscopy as a tool for understanding sulfur dynamics in soil organic matter. Soil Sci Soc Am J 2003;67:1721-1731.
121. Spencer RGM, Aiken GR, Butler KD, Dornblaser MM, Striegl RG, Hernes PJ. Utilizing chromophoric dissolved organic matter measurements to derive export and reactivity of dissolved organic carbon exported to the Arctic Ocean: A case study of the Yukon River, Alaska. Geophys Res Lett 2009;36: L06401.
122. Spencer RGM, Baker A, Ahad JME, Cowie GL, Ganeshram R, Upstill-Goddard RC, Uher G. Discriminatory classification of natural and anthropogenic waters in two U.K. estuaries. Sci Total Environ 2007;373:305-323.
123. Stein ED, Cohen Y, Winer AM. Environmental distribution and transformation of mercury compounds. Crit Rev Environ Sci Technol 1996;26:1-43.
124. Stenson AC, Marshall AG, Cooper WT. Exact masses and chemical formulas of individual Suwannee River fulvic acids from ultrahigh resolution electrospray ionization Fourier transform ion cyclotron resonance mass spectra. Anal Chem 2003;75:1275-1284.
125. Stubbins A, Hubbard V, Uher G, Law CS, Upstill-Goddard RC, Aiken GR, Mopper K. Relating carbon monoxide photoproduction to dissolved organic matter functionality. Environ Sci Technol 2008;42:3271-3276.
126. Stumm W, Morgan JJ. Aquatic Chemistry. 3rd ed. New York: Wiley-Interscience; 1996.
127. Tossell JA. Calculation of the structures, stabilities, and properties of mercury sulfide species in aqueous solution. J Phys Chem A 2001;105:935-941.
128. Town RM, Filella M. Dispelling the myths: Is the existence of L1 and L2 ligands necessary to explain metal ion speciation in natural waters? LimnolOceanogr 2000;45:1341-1357.
129. Tranvik LJ. Degradation of dissolved organic matter in humic waters by bacteria. In: Hessen DO, Tranvik LJ, editors. Aquatic humic substances: ecology and biogeochemistry (Ecological Studies v. 133). Berlin, Germany: Springer-Verlag; 1998. p 259-283.
130. Vairavamurthy A, Wang S. Organic nitrogen in geomacromolecules: Insights on speciation and transformation with K-edge XANES spectroscopy. Environ Sci Technol 2002;36:3050-3056.
131. Vairavamurthy MA, Maletic D, Wang S, Manowitz B, Eglinton T, Lyons T. Characterization of sulfur-containing functional groups in sedimentary humic substances by X-ray absorption near-edge structure spectroscopy. Energy Fuels 1997;11:546-553.
132. Wang L, Chin Y-P, Traina SJ. Adsorption of (poly)maleic acid and an aquatic fulvic acid by geothite. Geochim Cosmochim Acta 1997;61:5313-5324.
133. Waples JS, Nagy KL, Aiken GR, Ryan JN. Dissolution of cinnabar (HgS) in the presence of natural organic matter. Geochim Cosmochim Acta 2005;69:1575-1588.
134. Weber FA, Voegelin A, Kaegi R, Kretzschmar R. Contaminant mobilization by metallic copper and metal sulphide colloids in flooded soil. Nat Geosci 2009;2:267-271.
135. Weishaar JL, Aiken GR, Bergamaschi BA, Fram MS, Fujii R, Mopper K. Evaluation of specific ultraviolet absorbance as an indicator of the chemical composition and reactivity of dissolved organic carbon. Environ Sci Technol 2003;37:4702-4708.
136. Wetzel RG. Limnology: lake and river ecosystems. 3rd ed. Orlando (FL): Academic Press; 2001.
137. Xia K, Skyllberg UL, Bleam WF, Bloom PR, Nater EA, Helmke PA. X-ray absorption spectroscopic evidence for the complexation of Hg(II) by reduced sulfur in soil humic substances. Environ Sci Technol 1999;33:257-261.
138. Yin YJ, Allen HE, Huang CP, Sanders PF. Interaction of Hg(II) with soil-derived humic substances. Anal Chim Acta 1997;341:73-82.
139. Yoon SJ, Diener LM, Bloom PR, Nater EA, Bleam WF. X-ray absorption studies of CH3Hg+-binding sites in humic substances. Geochim Cosmochim Acta 2005;69:1111-1121.