The mechanism behind the DOM effects on methylmercury photodegradation  

作　　者：Khan M.G.Mostofa Cong-Qiang Liu Marco Minella Davide Vione 

机构地区：[1]Institute of Surface Earth System Science, Tianjin University [2]State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences [3]Dipartimento di Chimica, Universita` degli Studi di Torino [4]Centro Interdipartimentale Nat Risk

出　　处：《Science Bulletin》2015年第13期1220-1221,共2页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China(41210004,41130536);the Key Construction Program of the National‘‘985’’Project;Tianjin University,China,and University of Torino-EU Accelerating Grants,Project TO_Call2_2012_0047

摘　　要：Methyl mercury(CH3Hg+),a neurotoxin,is the most toxic form of mercury that occurs in natural waters[1–4].It is a cause of concern because of increasing worldwide pollution by mercury in both water and atmosphere[3,5].Photodegradation of CH3Hg+is one of the main removal pathways from surface waters,and it has been shownMethyl mercury （CH3Hg＋）, a neurotoxin, is the most toxic form of mercury that occurs in natural waters [14]. It is a cause of concern because of increasing worldwide pollution by mercury in both water and atmosphere [3, 5]. Photodegradation of CH3Hg＋ is one of the main removal pathways from surface waters, and it has been shown to occur in the presence of dissolved organic matter （DOM） but not in ultra-pure water [2, 4]. Several mechanisms for the photodegradation of CH3Hg＋ have been proposed,

关 键 词：DOM 甲基汞 光降解 机制 自然水域 溶解有机物 神经毒素 去除途径 

分 类 号：X505[环境科学与工程—环境工程]