Results 161 to 170 of about 4,986 (198)

Seasonal characterization and identification of dissolved organic matter (DOM) in the Pearl River, China

Environmental Science and Pollution Research, 2015
Dissolved organic matter (DOM) is considered to be one of active organic carbon components in river water, and its characteristics would affect quality of drinking water if such a river is used for the purpose. DOM in the Pearl River around metropolitan Guangzhou and its six fractions obtained by sequential resins separation and their percentage ...
Liuchun, Zheng, Zhaofeng, Song, Peipei, Meng, Zhanqiang, Fang   +3 more
openaire   +2 more sources

How representative are dissolved organic matter (DOM) extracts? A comprehensive study of sorbent selectivity for DOM isolation

Water Research, 2017
Solid phase extraction (SPE) has become a widespread method for isolating dissolved organic matter (DOM) of diverse origin such as fresh and marine waters. This study investigated the DOM extraction selectivity of 24 commercially available SPE sorbents under identical conditions (pH = 2, methanol elution) on the example of Suwannee River (SR) water and
Yan Li, Mourad Harir, Jenny Uhl, Basem Kanawati, Marianna Lucio, Kirill S. Smirnov, Boris P. Koch, Philippe Schmitt-Kopplin, Norbert Hertkorn   +8 more
openaire   +3 more sources

Analysis of adsorption processes of dissolved organic matter (DOM) on ferrihydrite using surrogate organic compounds

Environmental Science and Pollution Research, 2017
Ferrihydrite (Fh) has been recently used in water treatment for removing dissolved organic matter (DOM), but its governing interactions with low-molecular weight DOM are largely unknown. This study aimed to elucidate the influence of chemical structure of DOM on the interactions between functional groups of DOM and Fh using various surrogates ...
Yu, Yang, Jenyuk, Lohwacharin, Satoshi, Takizawa   +2 more
openaire   +2 more sources

Relationship between concentration of dissolved organic matter (DOM) and the effect of DOM on the bioconcentration of benzo[a]pyrene

Aquatic Toxicology, 1999
Abstract Dissolved organic matter (DOM) from five different origins decreased the bioconcentration of benzo[a]pyrene (BaP) in the nematode, Caenorhabditis elegans. The decrease became more pronounced with increasing concentrations of DOM, but the effect per mg l−1 DOC was largest at low levels of DOM, indicating the lack of a simple direct ...
Haitzer, M., Hoess, S., Traunspurger, Walter, Steinberg, C.   +3 more
openaire   +2 more sources

Interactions of engineered nanoparticles with dissolved organic matter (DOM) and organic contaminants in water

2013
Background: Engineered carbon nanotubes (CNTs) are expected to be increasingly released into the environment with the rapid increase in their production and use. The discharged CNTs may interact with coexisting contaminants and subsequently change environmental behaviors and ecological effects of both the CNTs themselves and the contaminants. Dissolved
Benny Chefetz, Baoshan Xing, Yona Chen
openaire   +1 more source

Dissolved organic matter (DOM) is independently stratified in thermally stratified water bodies

Journal of Environmental Management
Thermal stratification often occurs in deep-water bodies, including oceans, lakes, and reservoirs. Dissolved organic matter (DOM) plays a critical role in regulating the dynamics of aquatic food webs and water quality in aquatic ecosystems. In the past, thermal stratification boundaries have been sometimes used exclusively to analyze the vertical ...
Mengjiao, Wei, Suiliang, Huang, Waseem, Akram   +2 more
openaire   +2 more sources

[Dissolved organic matter (DOM) dynamics in karst aquifer systems].

Huan jing ke xue= Huanjing kexue, 2015
Dissolved organic matter (DOM) and nutrients have a unique way of producing, decomposing and storing in southwest karst water systems. To understand the biogeochemical cycle of DOM in karst aquifer systems, we investigated the behavioral changes of DOM fluorescence components in Zhaidi karst river system.
Xin, Yao, Sheng-Zhang, Zou, Ri-Yuan, Xia, Dan-Dan, Xu, Min, Yao   +4 more
openaire   +1 more source

Sources and seasonal patterns of dissolved organic matter (DOM) in the hyporheic zone

Hydrobiologia, 2009
The hyporheic zone is a region underneath streambeds that integrates surface and groundwater. Although its location is central to biogeochemical linkages between the riparian zone, dissolved nutrients, and benthic biota, the seasonal quality and likely sources of dissolved organic matter (DOM) in the hyporheic zone are not well understood.
Jessica C. Y. Wong, D. Dudley Williams
openaire   +1 more source

[Influence of dissolved organic matter (DOM) on environmental behaviors of organic pollutants in soils].

Ying yong sheng tai xue bao = The journal of applied ecology, 2004
Dissolved organic matter (DOM) is an important component of solutions in terrestrial and aquatic ecosystems through its influence on acidity, nutrient availability, and toxicity. DOM could enhance the apparent solubility of organic pollutants and alter adsorption-desorption equilibrium of organic pollutants on soil.
Wanting, Ling, Jianmin, Xu, Yanzheng, Gao, Haizhen, Wang   +3 more
openaire   +1 more source

Dissolved organic matter (DOM) and microbial enzymes in the Ross Sea

2018
In the Ross Sea the dissolved organic matter and the role of culturable heterotrophic microbes in its degradation are almost unknown. In the carbon cycle, dissolved organic carbon (DOC) concentration and its optically significant fraction, the chromophoric component (CDOM) are important for DOM budget estimates.
Specchiulli A, Caruso G, Laganà P, Cilenti L, Castagno P, Rivaro P, Azzaro M   +6 more
openaire   +2 more sources