Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Preliminary investigation of the presence of PFOS and PFOA in water and sediment in Cau river
View through CrossRef
Perfluoro-octane sulfonate (PFOS) and Perfluoro-octanoic acid (PFOA) are recognised as emerging environmental pollutants because of their high persistence in various environmental matrices and toxic effects on humans and animals. The objectives of this study were to preliminarily investigate the occurrence of PFOS and PFOA in the water and sediment of the Cau river in Thai Nguyen city. The concentration of PFOS and PFOA in water ranged from <LOQ-0.67 ng/l and 0.05-8.11 ng/l; 1.19-4.73 ng/g, and 0.17-1.78 ng/g in sediment, respectively. The highest total concentrations of PFOS and PFOAwere recorded in the areas that directly received wastewater from domestic and industrial activities. The water-sediment distribution coefficient (Kd) was relatively different for PFOS and PFOA, with Kd ranged from 20.51-72.83 l/g and 1.21-20.31 l/g for PFOS and PFOA, respectively. This result suggested the distribution of PFOS and PFOA between water and sediment, in which PFOS will preferentially deposit in the sediment, and PFOA will tend to distribute in the liquid phase of the aquatic environment.
Ministry of Science and Technology, Vietnam (VMOST)
Title: Preliminary investigation of the presence of PFOS and PFOA in water and sediment in Cau river
Description:
Perfluoro-octane sulfonate (PFOS) and Perfluoro-octanoic acid (PFOA) are recognised as emerging environmental pollutants because of their high persistence in various environmental matrices and toxic effects on humans and animals.
The objectives of this study were to preliminarily investigate the occurrence of PFOS and PFOA in the water and sediment of the Cau river in Thai Nguyen city.
The concentration of PFOS and PFOA in water ranged from <LOQ-0.
67 ng/l and 0.
05-8.
11 ng/l; 1.
19-4.
73 ng/g, and 0.
17-1.
78 ng/g in sediment, respectively.
The highest total concentrations of PFOS and PFOAwere recorded in the areas that directly received wastewater from domestic and industrial activities.
The water-sediment distribution coefficient (Kd) was relatively different for PFOS and PFOA, with Kd ranged from 20.
51-72.
83 l/g and 1.
21-20.
31 l/g for PFOS and PFOA, respectively.
This result suggested the distribution of PFOS and PFOA between water and sediment, in which PFOS will preferentially deposit in the sediment, and PFOA will tend to distribute in the liquid phase of the aquatic environment.
Related Results
Diffused and localized sediment production processes in a distributed transport model
Diffused and localized sediment production processes in a distributed transport model
<p>The identification of preferential sediment production areas within a river basin is essential to improve predictions of sediment load and its sources, and to iden...
Four-dimensional characterization of a PFOA-contaminated fractured rock aquifer (FRA) in Bennington, Vermont, U.S.A
Four-dimensional characterization of a PFOA-contaminated fractured rock aquifer (FRA) in Bennington, Vermont, U.S.A
Between 2016 and 2019, the Vermont Department of Environmental Conservation discovered that groundwater from over 50% (355/628) of wells and springs in the Bennington area had perf...
Effects of Co-Existing Microplastics on Adsorption–Desorption Behavior of Perfluorooctanoic Acid in Soil: Co-Sorption and Mechanism Insight
Effects of Co-Existing Microplastics on Adsorption–Desorption Behavior of Perfluorooctanoic Acid in Soil: Co-Sorption and Mechanism Insight
Microplastics (MPs) and perfluorooctanoic acid (PFOA) are ubiquitously present in agroecosystems, which can cause varying degrees of environmental damage. This study reports the in...
Perfluorooctane sulfonic acid induces liver lipid accumulation through AMPK/ACC signaling
Perfluorooctane sulfonic acid induces liver lipid accumulation through AMPK/ACC signaling
Abstract
Perfluorooctane sulfonic acid (PFOS) is a hepatotoxic environmental organic pollutant that can cause aberrant lipid accumulation in the liver. However, the molecul...
Comparative study on the binding of several per- and Polyfluoroalkyl Substances (PFAS) to the G Protein-coupled Estrogen Receptor (GPER) using molecular docking technology
Comparative study on the binding of several per- and Polyfluoroalkyl Substances (PFAS) to the G Protein-coupled Estrogen Receptor (GPER) using molecular docking technology
Per- and polyfluoroalkyl substances (PFAS) constitute a class of persistent organic pollutants with estrogen-disrupting effects. The molecular mechanism underlying their mediation ...
Sediment load determines the shape of rivers 
Sediment load determines the shape of rivers 
<div>
<div>
<div>
<div>
<p>Understanding how rivers adjust to the sediment load they carry is critical to pred...
Monitoring priority substances in biota under the Water Framework Directive: How effective is a tiered approach based on caged invertebrates? A proof of concept study targeting PFOS in French rivers.
Monitoring priority substances in biota under the Water Framework Directive: How effective is a tiered approach based on caged invertebrates? A proof of concept study targeting PFOS in French rivers.
Abstract
Background : This study aims to describe and test a tiered approach for assessing compliance to Environmental Quality standards (EQSs) for priority substances in b...
Monitoring priority substances in biota under the Water Framework Directive: How effective is a tiered approach based on caged invertebrates? A proof of concept study targeting PFOS in French rivers.
Monitoring priority substances in biota under the Water Framework Directive: How effective is a tiered approach based on caged invertebrates? A proof of concept study targeting PFOS in French rivers.
Abstract
Background: This study aims to describe and test a tiered approach for assessing compliance to Environmental Quality standards (EQSs) for priority substances in bi...