Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The present study describes properties of humic substances of the Fluvisols (the Lower Vistula, Poland). Fluvisols under agricultural management (arable soil and grassland) were sampled from the surface horizon 50, 200, 600, and 900 m from the Vistula River. The content of carbon in the fractions of humic acids (C), fulvic acids (C), and humins (C) as well as the content of dissolved organic carbon (DOC) were assayed. The organic matter of the soils that were sampled 200 m from the river demonstrated a lowest share of the humic acids (HAs) and fulvic acids (FAs). The percentage share of the hydrophilic fractions (HIL) in the HAs and, as a result the value of the HIL/ΣHOB ratio, increased with the distance from the riverbed. The HAs of the soils located further from the riverbed had a higher degree of humification compared to the HAs of the soils that were sampled 50 and 200 m away. Based on the research results, it was determined that the properties of HAs can be used to evaluate the effect of flood events, their location, and scope on the transformation of the organic matter in fluvial sediments.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11356-018-2454-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Molecular-level insights into directional condensation mechanism of phenolic acids during humic substance formation.
Bioresour Technol
September 2025
Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, China. Electronic address:
The regulation of humic substance formation during aerobic fermentation of organic solid waste has gradually become a research hotspot in related fields. The metabolic byproducts of lignocellulose have the potential to act as precursors for the synthesis of humic substances. This study, grounded in a robust framework of metabolic intermediate indicators, selected representative pure phenolic acid intermediates to conduct condensation experiments.
View Article and Find Full Text PDFInteractions of extracellular polymeric substances with ferrihydrite and subsequent 17α-ethinylestradiol photodegradation: Impact of Fe(III)-EPS complexes formation.
J Hazard Mater
September 2025
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; Southwest United Graduate School, Kunming 650092, China.
Microbial-derived extracellular polymeric substances (EPS) and iron minerals are ubiquitous in aquatic environments, and they can influence the fate of organic micropollutants such as 17α-ethinylestradiol (EE2). However, the interactions between EPS and iron minerals, and their influence on EE2 photodegradation, are seldom addressed in the literature. This study explored the effects of EPS derived from different aerobic or anaerobic microbials on the reductive dissolution of ferrihydrite (Fhy) and subsequent EE2 photodegradation, with emphasis on the impact of Fe-EPS complexes formation.
View Article and Find Full Text PDFRole of Peat Moss (Sphagnum) in Reduction of Environmental Toxicity in Correlation with Various Microbes.
Appl Biochem Biotechnol
September 2025
Institute of Engineering and Management, University of Engineering and Management, Kolkata, India.
Peat moss (Sphagnum) plays a crucial role in extenuating the environmental toxicity by swaying the microbial activity and acting as a natural filter for removing pollutants. The peatlands help in the purification of water by filtering out the contaminants and decomposing organic matter by creating anaerobic conditions that create impacts on microbial communities. Additionally, Sphagnum pays for carbon sequestration that makes a positive impact in the carbon sinks process for peatlands.
View Article and Find Full Text PDFCoupling electrochemical and spectroscopic methods for river water dissolved organic matter characterization.
Environ Monit Assess
September 2025
Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034, Barcelona, Spain.
Monitoring dissolved organic matter (DOM) in surface waters is essential for assessing ecosystem health and detecting pollution. However, conventional spectroscopic techniques often provide limited information about the electrochemical behavior of DOM. This study integrates electrochemical impedance spectroscopy (EIS) with classical methods such as UV-Vis absorption and fluorescence spectroscopies to improve DOM characterization in river water samples.
View Article and Find Full Text PDFFreeze-thaw-induced regulation of petroleum hydrocarbon adsorption in cold-region soils: Role of organic matter dynamics.
Water Res
August 2025
Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130026, China; Institute of Water Resources and Environment, Jilin University, Ch
Numerous global regions are increasingly exposed to environmental risks from oil extraction and transportation, where contaminated soils are frequently subjected to seasonal and diurnal freeze-thaw cycles (FTCs). As a key interfacial process, soil adsorption can regulate the fate and mobility of petroleum hydrocarbons (PHCs), whereas the effect of FTCs on PHC adsorption remains poorly understood. This study integrated in-situ freeze-thaw treatments with adsorption experiments to examine the freeze-thaw effects on soil properties and their influence on the adsorption of representative PHCs under varying hydrothermal conditions.
View Article and Find Full Text PDF