Search results for " dissolved"

showing 2 items of 82 documents

Mercury concentration and speciation in volcanic aquifers: measurements in Italy and Guadeloupe (Lesser Antilles)

2008

speciation volcanic aquifers total and dissolved mercury mercury cycling.
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Iron and pH regulating the photochemical mineralization of dissolved organic carbon

2017

Solar radiation mineralizes dissolved organic matter (DOM) to dissolved inorganic carbon through photochemical reactions (DIC photoproduction) that are influenced by iron (Fe) and pH. This study addressed as to what extent Fe contributes to the optical properties of the chromophoric DOM (CDOM) and DIC photoproduction at different pH values. We created the associations of Fe and DOM (Fe-DOM) that cover the range of loadings of Fe on DOM and pH values found in freshwaters. The introduced Fe enhanced the light absorption by CDOM independent of pH. Simulated solar irradiation decreased the light absorption by CDOM (i.e., caused photobleaching). Fe raised the rate of photobleaching and steepened…

ta222mineralisation010504 meteorology & atmospheric sciencesphGeneral Chemical Engineeringsolar radiationhiiliInorganic chemistryta1172education116 Chemical sciencesrauta010501 environmental sciencesPhotochemistry01 natural sciencesMineralization (biology)Articlelaw.inventionlcsh:ChemistryironMagazinelawDissolved organic carbonIrradiationauringonsäteilyta1161172 Environmental sciences0105 earth and related environmental sciencesChemistrypHcarbonGeneral ChemistryPhotobleaching6. Clean watermineralisaatioColored dissolved organic matterlcsh:QD1-999
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