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• W2891482281 endingPage "158" @default.
• W2891482281 startingPage "146" @default.
• W2891482281 abstract "The origin and composition of dissolved organic matter (DOM) in porewater of lake sediments is intricate and decisive for fate of pollutants including mercury (Hg). While there are many reports on the relationship between dissolved organic carbon concentration (DOC) and mercury (Hg) concentrations in aquatic systems, there are few in which DOM compositional properties, that may better explain the fate of Hg, have been the focus. In this study, porewaters from sediments of three lakes, Caihai Lake (CH), Hongfeng Lake (HF) and Wujiangdu Lake (WJD), all located in southwest China, were selected to test the hypothesis that DOM optical properties control the fate of Hg in aquatic ecosystems. Porewater DOM was extracted and characterized by UV–Vis absorption and fluorescence spectroscopy. A two end-member (autochthonous and allochthonous DOM) mixing model was used to unveil the origin of DOM in porewaters of the three lakes. Our results show a higher input of terrestrial DOM in the pristine lake CH, as compared to lakes HF and WJD lakes, which were both influenced by urban environments and enriched in autochthonous DOM. While the relationships between the concentrations of DOC and the different chemical forms of Hg forms were quite inconsistent, we found important links between specific DOM components and the fate of Hg in the three lakes. In particular, our results suggest that allochthonous, terrestrial DOM inhibits Hg(II) availability for Hg methylating micro-organisms. In contrast, autochthonous DOM seems to have been stimulated MeHg formation, likely by enhancing the activity of microbial communities. Indeed, DOM biodegradation experiments revealed that differences in the microbial activity could explain the variation in the concentration of MeHg. While relationships between concentrations of DOC and Hg vary among different sites and provide little information about Hg cycling, we conclude that the transport and transformation of Hg (e.g. the methylation process) are more strongly linked to DOM chemical composition and reactivity." @default.
• W2891482281 created "2018-09-27" @default.
• W2891482281 creator A5014076471 @default.
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• W2891482281 creator A5020488635 @default.
• W2891482281 creator A5048430866 @default.
• W2891482281 date "2018-12-01" @default.
• W2891482281 modified "2023-10-15" @default.
• W2891482281 title "Influence of dissolved organic matter (DOM) characteristics on dissolved mercury (Hg) species composition in sediment porewater of lakes from southwest China" @default.
• W2891482281 cites W1585484287 @default.
• W2891482281 cites W1965840982 @default.
• W2891482281 cites W1966729591 @default.
• W2891482281 cites W1970801056 @default.
• W2891482281 cites W1971099500 @default.
• W2891482281 cites W1976304959 @default.
• W2891482281 cites W1978300494 @default.
• W2891482281 cites W1979968121 @default.
• W2891482281 cites W1980457432 @default.
• W2891482281 cites W1982973130 @default.
• W2891482281 cites W1983072551 @default.
• W2891482281 cites W1983154220 @default.
• W2891482281 cites W1983710772 @default.
• W2891482281 cites W1986203880 @default.
• W2891482281 cites W1990495232 @default.
• W2891482281 cites W1998787283 @default.
• W2891482281 cites W2004999616 @default.
• W2891482281 cites W2005567399 @default.
• W2891482281 cites W2006143453 @default.
• W2891482281 cites W2008873988 @default.
• W2891482281 cites W2009202669 @default.
• W2891482281 cites W2011632028 @default.
• W2891482281 cites W2018538531 @default.
• W2891482281 cites W2020852552 @default.
• W2891482281 cites W2021136599 @default.
• W2891482281 cites W2022910731 @default.
• W2891482281 cites W2023332193 @default.
• W2891482281 cites W2025939314 @default.
• W2891482281 cites W2026195431 @default.
• W2891482281 cites W2028322612 @default.
• W2891482281 cites W2031070866 @default.
• W2891482281 cites W2031688730 @default.
• W2891482281 cites W2032224477 @default.
• W2891482281 cites W2034075136 @default.
• W2891482281 cites W2034444244 @default.
• W2891482281 cites W2035326932 @default.
• W2891482281 cites W2038447511 @default.
• W2891482281 cites W2040778064 @default.
• W2891482281 cites W2042015642 @default.
• W2891482281 cites W2044967210 @default.
• W2891482281 cites W2049586153 @default.
• W2891482281 cites W2053571742 @default.
• W2891482281 cites W2054012806 @default.
• W2891482281 cites W2059589032 @default.
• W2891482281 cites W2070162822 @default.
• W2891482281 cites W2074972294 @default.
• W2891482281 cites W2075113478 @default.
• W2891482281 cites W2077814094 @default.
• W2891482281 cites W2080596882 @default.
• W2891482281 cites W2081838554 @default.
• W2891482281 cites W2081905600 @default.
• W2891482281 cites W2082983267 @default.
• W2891482281 cites W2085180125 @default.
• W2891482281 cites W2091719706 @default.
• W2891482281 cites W2093103943 @default.
• W2891482281 cites W2094475448 @default.
• W2891482281 cites W2104944797 @default.
• W2891482281 cites W2105008272 @default.
• W2891482281 cites W2106419807 @default.
• W2891482281 cites W2108686678 @default.
• W2891482281 cites W2117058669 @default.
• W2891482281 cites W2120321951 @default.
• W2891482281 cites W2126742134 @default.
• W2891482281 cites W2132156457 @default.
• W2891482281 cites W2134359943 @default.
• W2891482281 cites W2140058528 @default.
• W2891482281 cites W2145745864 @default.
• W2891482281 cites W2150427664 @default.
• W2891482281 cites W2153098676 @default.
• W2891482281 cites W2154491781 @default.
• W2891482281 cites W2157502298 @default.
• W2891482281 cites W2160702089 @default.
• W2891482281 cites W2161310275 @default.
• W2891482281 cites W2165258753 @default.
• W2891482281 cites W2165751990 @default.
• W2891482281 cites W2166184850 @default.
• W2891482281 cites W2229046631 @default.
• W2891482281 cites W2255095138 @default.
• W2891482281 cites W2255627745 @default.
• W2891482281 cites W2296294370 @default.
• W2891482281 cites W2326386869 @default.
• W2891482281 cites W2326897445 @default.
• W2891482281 cites W2335776656 @default.
• W2891482281 cites W2510212799 @default.
• W2891482281 cites W2512660518 @default.
• W2891482281 cites W2525810592 @default.

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