AI Article Synopsis
- Suspended particulate matter (SPM) plays a crucial role in transporting heavy metals in the Yellow River, with significant effects on their distribution and migration.
- Research findings indicate that heavy metal concentrations and their availability are notably higher during the rainy season, with over 70% being transported by SPM, particularly affected by fine particles like clay.
- Specific interactions, such as the binding of cadmium (Cd) with SPM, suggest that SPM can potentially release Cd in certain areas, contributing to heavy metal pollution, especially in midstream and downstream sections during wetter periods.
Article Abstract
Suspended particulate matter (SPM) is an important heavy metal transporter in water. As a well-known high-SPM river, its impact on the distribution and migration of heavy metals in the Yellow River (YR) deserves special attention. In this study, the spatial distributions of heavy metals in surface water and SPM of the YR were investigated. The results indicate that the concentrations (dissolved and particulate phases) and bioavailability (particulate phase) of most heavy metals were higher during the rainy season than during the dry season. A considerable proportion of heavy metals (>70 %) was transported by SPM and fine particles (clay) controlled the pollution status of heavy metals in the YR. This could lead to higher heavy metal concentrations in the SPM midstream and downstream during the rainy season and higher heavy metal concentrations in upstream during the dry season. Heavy metal adsorption experiments showed that specific combination methods (such as binding with carbonate) between Cd and SPM may cause SPM to act as a source of Cd midstream and downstream. This study provides a new perspective on the effects of SPM on heavy metal distribution and migration in the YR.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.scitotenv.2023.169537 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Spatial distribution of heavy metal assessment in beach sediment due to bauxite mining in Kuantan, Pahang, Peninsular Malaysia.
Environ Geochem Health
January 2025
Department of Biochemistry, College of Sciences, King Saud University, 11451, Riyadh, Saudi Arabia.
The effect of open-pit bauxite mining on beach sediment contamination in the urban coastal environment of Kuantan City, Malaysia, was investigated. The contents of 11 heavy metals (Pb, Cd, Al, Mn, Cu, Zn, Fe, As, Ni, Cr, and Ag) in 30 samples from Kuantan beach sediment zones (supratidal, intertidal, and subtidal) were determined using inductively coupled plasma optical emission spectrometry followed by contamination indexes, Pearson's correlation analysis, and principal component analysis (PCA). The results indicated that Cd, As, Ni, and Ag values in beach sediment zones were significantly higher compared to background values.
View Article and Find Full Text PDFPresence of Heavy Metals in Vegetables Irrigated with Wastewater-Impacted Rivers and Its Health Risks in Ethiopia: Systematic Review.
Environ Health Insights
January 2025
Department of Environmental Health Science and Technology, Faculty of Public Health, Health Institute, Jimma University, Jimma, Ethiopia.
Background: Vegetables play critical role in human nutrition and overall health. However, consumption of vegetables cultivated through wastewater-impacted river can be source of potentially toxic heavy metals, which can cause detrimental health effects when their concentration exceeds the recommended maximum levels. Despite growing body of evidence highlighting the dangers associated with heavy metal accumulation in vegetables, there remains critical gap in systematic assessments within Ethiopian context.
View Article and Find Full Text PDFScreening of bioactive components in dried oleo-gum resin and assessment of its protective function against cadmium-induced oxidative damage, genotoxicity, and cytotoxicity in rats.
Toxicol Rep
June 2025
Food Toxicology & Contaminants Dept., National Research Centre, Dokki, Cairo, Egypt.
Cadmium (Cd) is among the most ecologically harmful heavy metals. The purpose of this work was to identify the biologically active components in dried oleo-resin-gum of extract (FAE) and assess their preventive efficacy against oxidative damage caused by Cd in rats. The biologically active components were identified using HPLC and GC-MS.
View Article and Find Full Text PDFApplication of ultra-weak photon emission imaging in plant stress assessment.
J Plant Res
January 2025
Department of Biophysics, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, 779 00, Czech Republic.
The oxidative damage induced by abiotic stress factors such as salinity, drought, extreme temperatures, heavy metals, pollution, and high irradiance has been studied in Arabidopsis thaliana. Ultra-weak photon emission (UPE) is presented as a signature reflecting the extent of the oxidation process and/or damage. It can be used to predict the physiological state and general health of plants.
View Article and Find Full Text PDFExposure to multiple heavy metals associated with levels of inflammatory cytokines in workers in vulnerable conditions.
Int Arch Occup Environ Health
January 2025
Coordination for the Innovation and Application of Science and Technology (CIACYT), Autonomous University of San Luis Potosi, Sierra Leona Avenue No. 550, Lomas Second Section, San Luis Potosi, C.P. 78210, SLP, Mexico.
Purpose: Individuals in occupational environments are particularly susceptible to the impacts of pollutants; making it crucial to assess systemic inflammation markers. The study aimed to evaluate the immune response to inflammation through the assessment of a cytokine profile in individuals working in vulnerable conditions exposed to heavy metals.
Methods: A total of 137 adults participated in this study from three work environments: brickyards, waste scavenging and quarries.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!