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• W2930241331 endingPage "290" @default.
• W2930241331 startingPage "276" @default.
• W2930241331 abstract "Mercury (Hg) is a highly toxic element, which is frequently enriched in flooded soils due to its anthropogenic release. The mobilization of Hg and its species is of ultimate importance since it controls the transfer into the groundwater and plants and finally ends in the food chain, which has large implications on human health. Therefore, the remediation of those contaminated sites is an urgent need to protect humans and the environment. Often, the stabilization of Hg using amendments is a reliable option and biochar is considered a candidate to fulfill this purpose. We tested two different pine cone biochars pyrolyzed at 200 °C or 500 °C, respectively, with a view to decrease the mobilization of total Hg (Hgt), methylmercury (MeHg), and ethylmercury (EtHg) and/or the formation of MeHg and EtHg in a contaminated floodplain soil (Hgt: 41 mg/kg). We used a highly sophisticated automated biogeochemical microcosm setup to systematically alter the redox conditions from ~−150 to 300 mV. We continuously monitored the redox potential (EH) along with pH and determined dissolved organic carbon (DOC), SUVA254, chloride (Cl−), sulfate (SO42−), iron (Fe), and manganese (Mn) to be able to explain the mobilization of Hg and its species. However, the impact of biochar addition on Hg mobilization was limited. We did not observe a significant decrease of Hgt, MeHg, and EtHg concentrations after treating the soil with the different biochars, presumably because potential binding sites for Hg were occupied by other ions and/or blocked by biofilm. Solubilization of Hg bound to DOC upon flooding of the soils might have occurred which could be an indirect impact of EH on Hg mobilization. Nevertheless, Hgt, MeHg, and EtHg in the slurry fluctuated between 0.9 and 52.0 μg/l, 11.1 to 406.0 ng/l, and 2.3 to 20.8 ng/l, respectively, under dynamic redox conditions. Total Hg concentrations were inversely related to the EH; however, ethylation of Hg was favored at an EH around 0 mV while methylation was enhanced between −50 and 100 mV. Phospholipid fatty acid profiles suggest that sulfate-reducing bacteria may have been the principal methylators in our experiment. In future, various biochars should be tested to evaluate their potential in decreasing the mobilization of Hg and to impede the formation of MeHg and EtHg under dynamic redox conditions in frequently flooded soils." @default.
• W2930241331 created "2019-04-11" @default.
• W2930241331 creator A5024029267 @default.
• W2930241331 creator A5033747679 @default.
• W2930241331 creator A5038438143 @default.
• W2930241331 creator A5039520570 @default.
• W2930241331 creator A5053298437 @default.
• W2930241331 creator A5063573120 @default.
• W2930241331 creator A5076771261 @default.
• W2930241331 creator A5084476764 @default.
• W2930241331 date "2019-06-01" @default.
• W2930241331 modified "2023-10-13" @default.
• W2930241331 title "Impact of biochar on mobilization, methylation, and ethylation of mercury under dynamic redox conditions in a contaminated floodplain soil" @default.
• W2930241331 cites W1082392428 @default.
• W2930241331 cites W1492051768 @default.
• W2930241331 cites W1590710652 @default.
• W2930241331 cites W178416420 @default.
• W2930241331 cites W188309663 @default.
• W2930241331 cites W1964349515 @default.
• W2930241331 cites W1965766774 @default.
• W2930241331 cites W1966907291 @default.
• W2930241331 cites W1969327735 @default.
• W2930241331 cites W1970801056 @default.
• W2930241331 cites W1971384261 @default.
• W2930241331 cites W1973670122 @default.
• W2930241331 cites W1975756430 @default.
• W2930241331 cites W1976955903 @default.
• W2930241331 cites W1978022068 @default.
• W2930241331 cites W1978252480 @default.
• W2930241331 cites W1981036332 @default.
• W2930241331 cites W1989161159 @default.
• W2930241331 cites W1990536164 @default.
• W2930241331 cites W1990800677 @default.
• W2930241331 cites W1991102943 @default.
• W2930241331 cites W1992163774 @default.
• W2930241331 cites W1992233853 @default.
• W2930241331 cites W1992262994 @default.
• W2930241331 cites W1993056618 @default.
• W2930241331 cites W1995506676 @default.
• W2930241331 cites W2002049404 @default.
• W2930241331 cites W2002387057 @default.
• W2930241331 cites W2002611021 @default.
• W2930241331 cites W2003382040 @default.
• W2930241331 cites W2003950107 @default.
• W2930241331 cites W2004144746 @default.
• W2930241331 cites W2004999616 @default.
• W2930241331 cites W2005517056 @default.
• W2930241331 cites W2005567399 @default.
• W2930241331 cites W2010453866 @default.
• W2930241331 cites W2013495304 @default.
• W2930241331 cites W2014727125 @default.
• W2930241331 cites W2017501888 @default.
• W2930241331 cites W2018727681 @default.
• W2930241331 cites W2022613742 @default.
• W2930241331 cites W2024537994 @default.
• W2930241331 cites W2030840870 @default.
• W2930241331 cites W2031720269 @default.
• W2930241331 cites W2031762751 @default.
• W2930241331 cites W2033912503 @default.
• W2930241331 cites W2034771515 @default.
• W2930241331 cites W2039618025 @default.
• W2930241331 cites W2040712892 @default.
• W2930241331 cites W2043681819 @default.
• W2930241331 cites W2048681523 @default.
• W2930241331 cites W2050095641 @default.
• W2930241331 cites W2051121524 @default.
• W2930241331 cites W2053820372 @default.
• W2930241331 cites W2054298223 @default.
• W2930241331 cites W2054761299 @default.
• W2930241331 cites W2057006360 @default.
• W2930241331 cites W2058328725 @default.
• W2930241331 cites W2059384287 @default.
• W2930241331 cites W2060117139 @default.
• W2930241331 cites W2062882746 @default.
• W2930241331 cites W2067508715 @default.
• W2930241331 cites W2068878699 @default.
• W2930241331 cites W2069269466 @default.
• W2930241331 cites W2071380061 @default.
• W2930241331 cites W2071725365 @default.
• W2930241331 cites W2072613715 @default.
• W2930241331 cites W2081566726 @default.
• W2930241331 cites W2082238800 @default.
• W2930241331 cites W2084077438 @default.
• W2930241331 cites W2084917539 @default.
• W2930241331 cites W2086089351 @default.
• W2930241331 cites W2090899887 @default.
• W2930241331 cites W2098664156 @default.
• W2930241331 cites W2099657426 @default.
• W2930241331 cites W2106651308 @default.
• W2930241331 cites W2107874691 @default.
• W2930241331 cites W2121929836 @default.
• W2930241331 cites W2123369708 @default.
• W2930241331 cites W2124004552 @default.
• W2930241331 cites W2124106296 @default.
• W2930241331 cites W2131538099 @default.
• W2930241331 cites W2138107529 @default.
• W2930241331 cites W2140788777 @default.
• W2930241331 cites W2147467836 @default.

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