Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury

Qian, Yun; Yin, Xiangping; Lin, Hui; Rao, Balaji; Brooks, Scott C.; Liang, Liyuan; Gu, Baohua

doi:10.1021/ez500254z

Title: Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury

Authors:

Qian, Yun ^[1]; Yin, Xiangping ^[1]; Lin, Hui ^[1]; Rao, Balaji ^[1]; Brooks, Scott C. ^[1]; Liang, Liyuan ^[1]; Gu, Baohua ^[1]

Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States

Publication Date:: Thu Sep 04 00:00:00 EDT 2014

Sponsoring Org.:: USDOE Office of Science (SC), Biological and Environmental Research (BER)

OSTI Identifier:: 1154755

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Published Article

Journal Name:: Environmental Science & Technology Letters (Online)

Additional Journal Information:: Journal Name: Environmental Science & Technology Letters (Online) Journal Volume: 1 Journal Issue: 10; Journal ID: ISSN 2328-8930

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Qian, Yun, Yin, Xiangping, Lin, Hui, Rao, Balaji, Brooks, Scott C., Liang, Liyuan, and Gu, Baohua. Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury.  United States: N. p., 2014. 
Web.  doi:10.1021/ez500254z.

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                    Qian, Yun, Yin, Xiangping, Lin, Hui, Rao, Balaji, Brooks, Scott C., Liang, Liyuan, & Gu, Baohua. Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury.  United States.  https://doi.org/10.1021/ez500254z

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                    Qian, Yun, Yin, Xiangping, Lin, Hui, Rao, Balaji, Brooks, Scott C., Liang, Liyuan, and Gu, Baohua. Thu .  
"Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury".  United States.  https://doi.org/10.1021/ez500254z.

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@article{osti_1154755,

  title        = {Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury},

  author       = {Qian, Yun and Yin, Xiangping and Lin, Hui and Rao, Balaji and Brooks, Scott C. and Liang, Liyuan and Gu, Baohua},

  abstractNote = {},

  doi          = {10.1021/ez500254z},

  journal      = {Environmental Science & Technology Letters (Online)},

  number       = 10,

  volume       = 1,

  place        = {United States},

  year         = {Thu Sep 04 00:00:00 EDT 2014},

  month        = {Thu Sep 04 00:00:00 EDT 2014}

}

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Title: Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury

Citation Formats

Photodecomposition of Methylmercury in an Arctic Alaskan Lake journal, February 2006

Photolytic degradation of methylmercury enhanced by binding to natural organic ligands journal, June 2010

Photosensitized transformations involving electronic energy transfer in natural waters: role of humic substances journal, January 1985

Determination of thiol functional groups on bacteria and natural organic matter in environmental systems journal, February 2014

Iron-Mediated Photochemical Decomposition of Methylmercury in an Arctic Alaskan Lake journal, August 2010

Cleaving Mercury-Alkyl Bonds: A Functional Model for Mercury Detoxification by MerB journal, July 2007

Measurement of Complexation of Methylmercury(II) Compounds by Freshwater Humic Substances Using Equilibrium Dialysis journal, February 1997

Importance of Ultraviolet Radiation in the Photodemethylation of Methylmercury in Freshwater Ecosystems journal, August 2009

Effect of Dissolved Organic Matter on the Transformation of Contaminants Induced by Excited Triplet States and the Hydroxyl Radical journal, February 2011

Binding Constants of Mercury and Dissolved Organic Matter Determined by a Modified Ion Exchange Technique journal, April 2011

Methyl-Mercury Degradation Pathways: A Comparison among Three Mercury-Impacted Ecosystems journal, December 2000

Potential demethylation rate determinations in relation to concentrations of MeHg, Hg and pore water speciation of MeHg in contaminated sediments journal, November 2008

Combined XANES and EXAFS Study on the Bonding of Methyl Mercury to Thiol Groups in Soil and Aquatic Organic Matter journal, January 2005

Assessing the Contribution of Free Hydroxyl Radical in Organic Matter-Sensitized Photohydroxylation Reactions journal, April 2011

Mercury Reduction and Oxidation by Reduced Natural Organic Matter in Anoxic Environments journal, November 2011

Quantitative Description of the Deactivation Channels of the First Excited Singlet State of 2- and 4-Thiosalicylic Acids journal, June 2005

Oxidation and methylation of dissolved elemental mercury by anaerobic bacteria journal, August 2013

Binding of Mercury(II) to Dissolved Organic Matter: The Role of the Mercury-to-DOM Concentration Ratio journal, August 2002

Factors controlling the abiotic photo-degradation of monomethylmercury in surface waters journal, May 2012

Mercury photolytic transformation affected by low-molecular-weight natural organics in water journal, February 2012

Photogeneration of singlet oxygen and free radicals in dissolved organic matter isolated from the Mississippi and Atchafalaya River plumes journal, March 2000

Degradation of methyl and ethyl mercury by singlet oxygen generated from sea water exposed to sunlight or ultraviolet light journal, June 1993

XANES Studies of Oxidation States of Sulfur in Aquatic and Soil Humic Substances journal, January 1998

Photodegradation of methylmercury in stream ecosystems journal, November 2012

Towards Universal Wavelength-Specific Photodegradation Rate Constants for Methyl Mercury in Humic Waters, Exemplified by a Boreal Lake-Wetland Gradient journal, May 2013

Apparent rates of production and loss of dissolved gaseous mercury (DGM) in a southern reservoir lake (Tennessee, USA) journal, March 2008

Degradation of Methylmercury and Its Effects on Mercury Distribution and Cycling in the Florida Everglades journal, September 2010

Methylmercury Photodegradation in Surface Water of the Florida Everglades: Importance of Dissolved Organic Matter-Methylmercury Complexation journal, June 2014

Photodegradation of methylmercury in lakes journal, April 1996

Protonolysis of the Hg−C Bond of Chloromethylmercury and Dimethylmercury. A DFT and QTAIM Study journal, July 2006

Photochemistry of salicylate anion in aqueous solution journal, July 2007

The Genetic Basis for Bacterial Mercury Methylation journal, February 2013

Why Mercury Prefers Soft Ligands journal, June 2013

Theoretical Study of the Photodecomposition of Methyl Hg Complexes journal, May 1998

Spectroscopic characterization of the structural and functional properties of natural organic matter fractions journal, July 2002

Mercury Reduction and Cell-Surface Adsorption by Geobacter sulfurreducens PCA journal, September 2013

Roles of dissolved organic matter in the speciation of mercury and methylmercury in a contaminated ecosystem in Oak Ridge, Tennessee journal, January 2010

Photochemical transformation of the insensitive munitions compound 2,4-dinitroanisole journal, January 2013

Constants of mercury methylation and demethylation rates in sediments and comparison of tracer and ambient mercury availability journal, September 2000

Mercury reduction and complexation by natural organic matter in anoxic environments journal, January 2011

Photodecomposition of Methylmercury in an Arctic Alaskan Lake
journal, February 2006

Photolytic degradation of methylmercury enhanced by binding to natural organic ligands
journal, June 2010

Photosensitized transformations involving electronic energy transfer in natural waters: role of humic substances
journal, January 1985

Determination of thiol functional groups on bacteria and natural organic matter in environmental systems
journal, February 2014

Iron-Mediated Photochemical Decomposition of Methylmercury in an Arctic Alaskan Lake
journal, August 2010

Cleaving Mercury-Alkyl Bonds: A Functional Model for Mercury Detoxification by MerB
journal, July 2007

Measurement of Complexation of Methylmercury(II) Compounds by Freshwater Humic Substances Using Equilibrium Dialysis
journal, February 1997

Importance of Ultraviolet Radiation in the Photodemethylation of Methylmercury in Freshwater Ecosystems
journal, August 2009

Effect of Dissolved Organic Matter on the Transformation of Contaminants Induced by Excited Triplet States and the Hydroxyl Radical
journal, February 2011

Binding Constants of Mercury and Dissolved Organic Matter Determined by a Modified Ion Exchange Technique
journal, April 2011

Methyl-Mercury Degradation Pathways: A Comparison among Three Mercury-Impacted Ecosystems
journal, December 2000

Potential demethylation rate determinations in relation to concentrations of MeHg, Hg and pore water speciation of MeHg in contaminated sediments
journal, November 2008

Combined XANES and EXAFS Study on the Bonding of Methyl Mercury to Thiol Groups in Soil and Aquatic Organic Matter
journal, January 2005

Assessing the Contribution of Free Hydroxyl Radical in Organic Matter-Sensitized Photohydroxylation Reactions
journal, April 2011

Mercury Reduction and Oxidation by Reduced Natural Organic Matter in Anoxic Environments
journal, November 2011

Quantitative Description of the Deactivation Channels of the First Excited Singlet State of 2- and 4-Thiosalicylic Acids
journal, June 2005

Oxidation and methylation of dissolved elemental mercury by anaerobic bacteria
journal, August 2013

Binding of Mercury(II) to Dissolved Organic Matter: The Role of the Mercury-to-DOM Concentration Ratio
journal, August 2002

Factors controlling the abiotic photo-degradation of monomethylmercury in surface waters
journal, May 2012

Mercury photolytic transformation affected by low-molecular-weight natural organics in water
journal, February 2012

Photogeneration of singlet oxygen and free radicals in dissolved organic matter isolated from the Mississippi and Atchafalaya River plumes
journal, March 2000

Degradation of methyl and ethyl mercury by singlet oxygen generated from sea water exposed to sunlight or ultraviolet light
journal, June 1993

XANES Studies of Oxidation States of Sulfur in Aquatic and Soil Humic Substances
journal, January 1998

Photodegradation of methylmercury in stream ecosystems
journal, November 2012

Towards Universal Wavelength-Specific Photodegradation Rate Constants for Methyl Mercury in Humic Waters, Exemplified by a Boreal Lake-Wetland Gradient
journal, May 2013

Apparent rates of production and loss of dissolved gaseous mercury (DGM) in a southern reservoir lake (Tennessee, USA)
journal, March 2008

Degradation of Methylmercury and Its Effects on Mercury Distribution and Cycling in the Florida Everglades
journal, September 2010

Methylmercury Photodegradation in Surface Water of the Florida Everglades: Importance of Dissolved Organic Matter-Methylmercury Complexation
journal, June 2014

Photodegradation of methylmercury in lakes
journal, April 1996

Protonolysis of the Hg−C Bond of Chloromethylmercury and Dimethylmercury. A DFT and QTAIM Study
journal, July 2006

Photochemistry of salicylate anion in aqueous solution
journal, July 2007

The Genetic Basis for Bacterial Mercury Methylation
journal, February 2013

Why Mercury Prefers Soft Ligands
journal, June 2013

Theoretical Study of the Photodecomposition of Methyl Hg Complexes
journal, May 1998

Spectroscopic characterization of the structural and functional properties of natural organic matter fractions
journal, July 2002

Mercury Reduction and Cell-Surface Adsorption by Geobacter sulfurreducens PCA
journal, September 2013

Roles of dissolved organic matter in the speciation of mercury and methylmercury in a contaminated ecosystem in Oak Ridge, Tennessee
journal, January 2010

Photochemical transformation of the insensitive munitions compound 2,4-dinitroanisole
journal, January 2013

Constants of mercury methylation and demethylation rates in sediments and comparison of tracer and ambient mercury availability
journal, September 2000

Mercury reduction and complexation by natural organic matter in anoxic environments
journal, January 2011