Results 61 to 70 of about 825,317 (258)

Optical properties of the organic substances from aqueous humus surface waters. [Translation from: Gidrochim. Mat. 23, 31-35, 1955] [PDF]

, 1955
Dissolved organic matter, especially turf and peat, is repsonsible for the colouration of water. The reported study tried to determine the nature of the colouring agent or organic matter by the establishment of a relationship between the intensity of ...
Mrylova, L.P., Skopintsev, B.A.
core  

Sulfate Reduction in Sediments Produces High Levels of Chromophoric Dissolved Organic Matter [PDF]

, 2017
Sulfate reduction plays an important role in altering dissolved organic matter (DOM) in estuarine and coastal sediments, although its role in the production of optically active chromophoric DOM (CDOM) and a subset of fluorescent DOM (FDOM) has not been ...
Gonsior, Michael, Heyes, Andrew, Larsen, Randolph K., Luek, Jenna L., Thompson, Kaitlyn E.   +4 more
core   +2 more sources

Influence of the permafrost boundary on dissolved organic matter characteristics in rivers within the Boreal and Taiga plains of western Canada

Environmental Research Letters, 2014
Catchment export of terrestrial dissolved organic matter (DOM) and its downstream degradation in aquatic ecosystems are important components of landscape scale carbon balances.
D Olefeldt, A Persson, M R Turetsky
doaj   +1 more source

The role of dissolved organic matter composition in determining photochemical reactivity at the molecular level.

Environmental Science and Technology, 2019
Dissolved organic matter (DOM) composition influences its ability to form photochemically produced reactive intermediates (PPRI). While relationships have been established between bulk DOM properties and triplet DOM (3DOM) and singlet oxygen (1O2 ...
Stephanie M. Berg, Quinn T. Whiting, Joseph A Herrli, R. Winkels, Kristine H. Wammer, Christina K. Remucal   +5 more
semanticscholar   +1 more source

Dissolved Organic Carbon Turnover in Permafrost-Influenced Watersheds of Interior Alaska: Molecular Insights and the Priming Effect

Frontiers in Earth Science, 2019
Increased permafrost thaw due to climate change in northern high-latitudes has prompted concern over impacts on soil and stream biogeochemistry that affect the fate of dissolved organic carbon (DOC).
Sadie R. Textor, Kimberly P. Wickland, David C. Podgorski, Sarah Ellen Johnston, Robert G. M. Spencer   +4 more
doaj   +1 more source

Triplet-State Photochemistry of Dissolved Organic Matter: Triplet-State Energy Distribution and Surface Electric Charge Conditions.

Environmental Science and Technology, 2019
Excited triplet states of chromophoric dissolved organic matter (3CDOM*) are highly reactive species in sunlit surface waters and play a critical role in reactive oxygen species (ROS) formation and pollutant attenuation. In the present study, a series of
Huaxi Zhou, Shuwen Yan, Lushi Lian, Weihua Song   +3 more
semanticscholar   +1 more source

Utilizing Colored Dissolved Organic Matter to Derive Dissolved Black Carbon Export by Arctic Rivers [PDF]

, 2015
Wildfires have produced black carbon (BC) since land plants emerged. Condensed aromatic compounds, a form of BC, have accumulated to become a major component of the soil carbon pool. Condensed aromatics leach from soils into rivers, where they are termed
A Jimenez, F Baetke, J Mann, JN Sørensen, M Calaf, M Calaf, N Troldborg, Y Wu   +7 more
core   +1 more source

Seasonal dynamics of dissolved organic matter in a small tropical estuary-coastal bay continuum: distribution, transformation, flux, and global perspectives

Frontiers in Marine Science
The export and transformation of riverine dissolved organic matter (DOM) at the river-sea interface are critical to understanding carbon budgets in tropical regions, yet remain underexplored in small watersheds.
Pengfei Liu, Kuan Jiang, Qi Tan, Fajin Chen, Renming Jia, Chao Wang, Chao Wang, Chao Wang, Chao Wang   +8 more
doaj   +1 more source

Temperature Dependence of Photodegradation of Dissolved Organic Matter to Dissolved Inorganic Carbon and Particulate Organic Carbon. [PDF]

PLoS ONE, 2015
Photochemical transformation of dissolved organic matter (DOM) has been studied for more than two decades. Usually, laboratory or "in-situ" experiments are used to determine photodegradation variables.
Petr Porcal, Peter J Dillon, Lewis A Molot   +2 more
doaj   +1 more source

Comparing Chromophoric Dissolved Organic Matter Methodologies

Journal of Student Research, 2019
Chromophoric dissolved organic matter (CDOM) is a combination of plant and animal decomposition byproducts and the optically active component of dissolved organic matter (DOM) in water. CDOM measurements have been a focus in the literature related to aqueous environments since the 1980s.
Alexandra MacFarland, Hayley Schiebel
openaire   +2 more sources