Results 11 to 20 of about 5,249 (199)

The characteristics of dissolved organic matter (DOM) and chromophoric dissolved organic matter (CDOM) in Antarctic sea ice [PDF]

open access: yesDeep Sea Research Part II: Topical Studies in Oceanography, 2011
Abstract An investigation of coloured dissolved organic matter (CDOM) and its relationships to physical and biogeochemical parameters in Antarctic sea ice and oceanic water have indicated that ice melt may both alter the spectral characteristics of CDOM in Antarctic surface waters and serve as a likely source of fresh autochthonous CDOM and labile ...
Norman, Louiza   +9 more
openaire   +3 more sources

Dissolved organic matter (DOM) in recycled leachate of bioreactor landfill [PDF]

open access: yesWater Research, 2006
Landfill leachate needs sufficient treatment before safe disposal. Bioreactor landfill technology could effectively degrade the organic matters in recirculated leachate, hence leaving a leachate stream of low biodegradability. This study characterized the dissolved organic matter (DOM) in the leachate from simulated bioreactor landfill columns with or ...
He, Pin-jing   +4 more
openaire   +2 more sources

Interactions between particulate organic matter and dissolved organic matter in a weak dynamic bay revealed by stable isotopes and optical properties

open access: yesFrontiers in Marine Science, 2023
Few studies have incorporated the tools of stable isotopes and optical properties to study the biogeochemical process of organic matter (OM), including particulate organic matter (POM) and dissolved organic matter (DOM), which prevents our comprehension ...
Xuan Lu   +20 more
doaj   +1 more source

Biogeochemical Controls on the Release and Accumulation of Mn and As in Shallow Aquifers, West Bengal, India

open access: yesFrontiers in Environmental Science, 2017
HIGHLIGHTSManganese and arsenic concentrations are elevated in Murshidabad groundwater.Manganese release appears to be independent of dissolved organic matter quality.Mineral precipitation and dissolution reactions impact fate of manganese.Arsenic ...
Michael A. Vega   +10 more
doaj   +1 more source

Sources, spectral characteristics, and fluxes of dissolved organic matter in coastal groundwater and river water in western Guangdong, China

open access: yesFrontiers in Environmental Science, 2022
Groundwater discharge and river runoff are two important ways for allochthonous dissolved organic matter (DOM) to enter the ocean, but they vary spatially.
Chao Wang   +8 more
doaj   +1 more source

Chemical characterization of dissolved organic matter (DOM): A prerequisite for understanding UV-induced changes of DOM absorption properties and bioavailability [PDF]

open access: yesAquatic Sciences, 2009
UV-induced transformations of colored dissolved organic matter (CDOM, which is part of dissolved organic matter, DOM) affect CDOM absorption properties resulting in the loss of color (referred to as photobleaching). CDOM photobleaching increases the penetration depths of the damaging UV-B radiation into water bodies and strongly depends on the ...
Sulzberger, Barbara   +1 more
openaire   +3 more sources

Selective Exclusion of Aromatic Organic Carbon During Lake Ice Formation

open access: yesGeophysical Research Letters, 2023
Earth's lakes at northern latitudes are mostly ice‐covered in winter. When lake water freezes, some organic matter dissolved in the water is excluded from the ice.
Yongqiang Zhou   +7 more
doaj   +1 more source

Variable C : N : P stoichiometry of dissolved organic matter cycling in the Community Earth System Model [PDF]

open access: yesBiogeosciences, 2015
Dissolved organic matter (DOM) plays an important role in the ocean's biological carbon pump by providing an advective/mixing pathway for ~ 20% of export production.
R. T. Letscher   +3 more
doaj   +1 more source

Synchronous Shifts in Nutrients and Organic Carbon Responses Over the Diatom-to-Dinoflagellate Succession

open access: yesFrontiers in Marine Science, 2022
Phytoplankton blooms, including the diatom-to-dinoflagellate succession in coastal regions, are frequently observed by researchers through incubation experiments, albeit mainly in nutrient-enrichment conditions. This study, complementary to such previous
Xiaolu Wang   +3 more
doaj   +1 more source

Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters

open access: yesEnvironmental Research Letters, 2021
Surface water browning, the result of increasing concentrations of dissolved organic matter (DOM), has been widespread in northern ecosystems in recent decades. Here, we assess a database of 426 undisturbed headwater lakes and streams in Europe and North
Heleen A de Wit   +16 more
doaj   +1 more source

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