Mercury reduction and complexation by natural organic matter in anoxic environments

• Published in: Proceedings of the National Academy of Sciences - PNAS Vol. 108; no. 4; pp. 1479 - 1483
• Main Authors: Gu, Baohua, Bian, Yongrong, Miller, Carrie L, Dong, Wenming, Jiang, Xin, Liang, Liyuan
• Format: Journal Article
• Language: English
• Published: United States National Academy of Sciences 25.01.2011; National Acad Sciences
• Subjects: Acid soils; Anaerobiosis; Aquatic environment; binding capacity; Binding sites; Biodegradation, Environmental; Biological Sciences; Chemical reduction; Dissolved organic matter; DNA methylation; Humic acids; Humic Substances; Hypoxia; Mercury; Mercury - chemistry; Mercury - metabolism; Methylation; Methylmercury; methylmercury compounds; Methylmercury Compounds - chemistry; Methylmercury Compounds - metabolism; Models, Chemical; Molecules; Organic Chemicals - chemistry; Organic Chemicals - metabolism; Oxidation; Oxidation-Reduction; Sedimentary soils; Sediments; Shewanella putrefaciens - metabolism; Soil organic matter; Soil pollution; Sulfur; Thiols; toxicity; Water Pollutants, Chemical - chemistry; Water Pollutants, Chemical - metabolism; Water pollution

Mercuric Hg(II) species form complexes with natural dissolved organic matter (DOM) such as humic acid (HA), and this binding is known to affect the chemical and biological transformation and cycling of mercury in aquatic environments. Dissolved elemental mercury, Hg(0), is also widely observed in se...