Results 151 to 160 of about 5,058 (197)

Riverine dissolved organic matter (DOM) as affected by urbanization gradient

Environmental Research, 2022
Rapid urbanization has considerably altered carbon biogeochemical cycle and river hydrology. However, the influences of urban land use and urban-induced nutrient increase on dissolved organic matter (DOM) characteristics are poorly understood. Here we hypothesize that the alterations significantly change sources and levels of DOM in river systems that ...
Siyue Li, Y Jun Xu, Liuqing Zhang
exaly   +3 more sources

Microbial degradation of dissolved organic matter (DOM) and its influence on phenanthrene–DOM interactions

Chemosphere, 2011
Microbial degradation-induced changes in the characteristics of dissolved organic matter (DOM), and the subsequent effects on phenanthrene-DOM interactions were investigated based on the microbial incubation of DOM collected from four different sources for 28 d.
Jin Hur, Hyun Sang Shin, Bo-Mi Lee
exaly   +3 more sources

Effects of dissolved organic matter (DOM) on the bioconcentration of organic chemicals in aquatic organisms — a review —

Chemosphere, 1998
Current knowledge on the effects of dissolved organic matter (DOM) on the bioconcentration of organic chemicals in aquatic animals (water fleas, mussels, amphipods and fish) is summarized. A graphical representation of the available data gives an overview of the magnitude of the observed effects.
Sebastian Hoss, Markus Haitzer
exaly   +4 more sources

Characteristics of dissolved organic matter (DOM) in leachate with different landfill ages

Journal of Environmental Sciences, 2008
The main objective of the study was to investigate the characteristics of dissolved organic matter (DOM) in leachate with different landfill ages through the chemical, spectroscopic, and elemental analysis. Humic acid (HA), fulvic acid (FA), and hydrophilic (HyI) fractions were isolated and purified by the XAD-8 resin combined with the cation exchange ...
Huo Shouliang, Liansheng He
exaly   +3 more sources

Molecular characterization of dissolved organic matter (DOM): a critical review

Analytical and Bioanalytical Chemistry, 2012
Advances in water chemistry in the last decade have improved our knowledge about the genesis, composition, and structure of dissolved organic matter, and its effect on the environment. Improvements in analytical technology, for example Fourier-transform ion cyclotron (FT-ICR) mass spectrometry (MS), homo and hetero-correlated multidimensional nuclear ...
NEBBIOSO, ANTONIO, PICCOLO, ALESSANDRO
openaire   +3 more sources

Adsorptive fractionation of dissolved organic matter (DOM) by carbon nanotubes

Environmental Pollution, 2015
Dissolved organic matter (DOM) and carbon nanotubes are introduced into aquatic environments. Thus, it is important to elucidate whether their interaction affects DOM amount and composition. In this study, the composition of DOM, before and after interactions with single-walled carbon nanotubes (SWCNTs), was measured and the adsorption affinity of the ...
Maya, Engel, Benny, Chefetz
openaire   +2 more sources

Effect of Dissolved Organic Matter (DOM) on Greenhouse Gas Emissions in Rice Varieties

SSRN Electronic Journal, 2021
Rice paddy fields are importan t sources of atmospheric methane (CH 4 ), and nitrous oxide (N 2 O) . In our previous study, we found that greenhouse gas emissions varied among rice varieties. Dissolved organic matter (DOM) is one of the most reactive organic matter fractions in an ecosystem.
Huina Ding, Quanyi Hu, Mingli Cai, Cougui Cao, Yang Jiang   +4 more
openaire   +1 more source

Fate of terrigenous dissolved organic matter (DOM) in estuaries: Aggregation and bioavailability

Ophelia, 2003
Abstract When dissolved organic matter (DOM) from terrestrial and freshwater sources is mixed with estuarine waters at the land-sea interface, the change in salinity has been suggested to cause fast aggregation and an increase in the bioavailability of dissolved organic carbon (DOC) and nitrogen (DON).
Søndergaard, M., Stedmon, C. A., Borch, N. H.   +2 more
openaire   +2 more sources

Characterization of dissolved organic matter (DOM) in an urbanized watershed using spectroscopic analysis

Chemosphere, 2021
Landscape urbanization broadly alter watersheds ecosystems, yet the impact of nonpoint source urban inputs on dissolved organic matter (DOM) amount, composition and source is poorly understood. To systematically examine how DOM optical index and composition varied with urbanization, a unique long term observation dataset (4 years) of fluorescence ...
Lili, Lyu, Ge, Liu, Yingxin, Shang, Zhidan, Wen, Junbin, Hou, Kaishan, Song   +5 more
openaire   +2 more sources

Improving solid-phase extraction of dissolved organic matter (DOM)

2023
In current dissolved organic matter (DOM) research, solid-phase extraction (SPE) with Bond Elut PPL resins is the gold standard for desalination and concentration. This method routinely recovers 50-65% of marine and terrestrial DOM. However, in unusual samples, for example from hydrothermal vents, early-stage microalgal cultures, the sea-surface ...
Hannelore Waska, Jessika Füssel, Katharina Paetz, Marit Renken, Thorsten Dittmar   +4 more
openaire   +1 more source